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| -rw-r--r-- | vendor/adodb/adodb-php/adodb-xmlschema03.inc.php | 2408 |
diff --git a/vendor/adodb/adodb-php/adodb-xmlschema03.inc.php b/vendor/adodb/adodb-php/adodb-xmlschema03.inc.php new file mode 100644 index 0000000..4d1faad --- /dev/null +++ b/vendor/adodb/adodb-php/adodb-xmlschema03.inc.php @@ -0,0 +1,2408 @@ +<?php +// Copyright (c) 2004-2005 ars Cognita Inc., all rights reserved +/* ****************************************************************************** + Released under both BSD license and Lesser GPL library license. + Whenever there is any discrepancy between the two licenses, + the BSD license will take precedence. +*******************************************************************************/ +/** + * xmlschema is a class that allows the user to quickly and easily + * build a database on any ADOdb-supported platform using a simple + * XML schema. + * + * Last Editor: $Author: jlim $ + * @author Richard Tango-Lowy & Dan Cech + * @version $Revision: 1.62 $ + * + * @package axmls + * @tutorial getting_started.pkg + */ + +function _file_get_contents($file) +{ + if (function_exists('file_get_contents')) return file_get_contents($file); + + $f = fopen($file,'r'); + if (!$f) return ''; + $t = ''; + + while ($s = fread($f,100000)) $t .= $s; + fclose($f); + return $t; +} + + +/** +* Debug on or off +*/ +if( !defined( 'XMLS_DEBUG' ) ) { + define( 'XMLS_DEBUG', FALSE ); +} + +/** +* Default prefix key +*/ +if( !defined( 'XMLS_PREFIX' ) ) { + define( 'XMLS_PREFIX', '%%P' ); +} + +/** +* Maximum length allowed for object prefix +*/ +if( !defined( 'XMLS_PREFIX_MAXLEN' ) ) { + define( 'XMLS_PREFIX_MAXLEN', 10 ); +} + +/** +* Execute SQL inline as it is generated +*/ +if( !defined( 'XMLS_EXECUTE_INLINE' ) ) { + define( 'XMLS_EXECUTE_INLINE', FALSE ); +} + +/** +* Continue SQL Execution if an error occurs? +*/ +if( !defined( 'XMLS_CONTINUE_ON_ERROR' ) ) { + define( 'XMLS_CONTINUE_ON_ERROR', FALSE ); +} + +/** +* Current Schema Version +*/ +if( !defined( 'XMLS_SCHEMA_VERSION' ) ) { + define( 'XMLS_SCHEMA_VERSION', '0.3' ); +} + +/** +* Default Schema Version. Used for Schemas without an explicit version set. +*/ +if( !defined( 'XMLS_DEFAULT_SCHEMA_VERSION' ) ) { + define( 'XMLS_DEFAULT_SCHEMA_VERSION', '0.1' ); +} + +/** +* How to handle data rows that already exist in a database during and upgrade. +* Options are INSERT (attempts to insert duplicate rows), UPDATE (updates existing +* rows) and IGNORE (ignores existing rows). +*/ +if( !defined( 'XMLS_MODE_INSERT' ) ) { + define( 'XMLS_MODE_INSERT', 0 ); +} +if( !defined( 'XMLS_MODE_UPDATE' ) ) { + define( 'XMLS_MODE_UPDATE', 1 ); +} +if( !defined( 'XMLS_MODE_IGNORE' ) ) { + define( 'XMLS_MODE_IGNORE', 2 ); +} +if( !defined( 'XMLS_EXISTING_DATA' ) ) { + define( 'XMLS_EXISTING_DATA', XMLS_MODE_INSERT ); +} + +/** +* Default Schema Version. Used for Schemas without an explicit version set. +*/ +if( !defined( 'XMLS_DEFAULT_UPGRADE_METHOD' ) ) { + define( 'XMLS_DEFAULT_UPGRADE_METHOD', 'ALTER' ); +} + +/** +* Include the main ADODB library +*/ +if( !defined( '_ADODB_LAYER' ) ) { + require( 'adodb.inc.php' ); + require( 'adodb-datadict.inc.php' ); +} + +/** +* Abstract DB Object. This class provides basic methods for database objects, such +* as tables and indexes. +* +* @package axmls +* @access private +*/ +class dbObject { + + /** + * var object Parent + */ + var $parent; + + /** + * var string current element + */ + var $currentElement; + + /** + * NOP + */ + function __construct( &$parent, $attributes = NULL ) { + $this->parent = $parent; + } + + /** + * XML Callback to process start elements + * + * @access private + */ + function _tag_open( &$parser, $tag, $attributes ) { + + } + + /** + * XML Callback to process CDATA elements + * + * @access private + */ + function _tag_cdata( &$parser, $cdata ) { + + } + + /** + * XML Callback to process end elements + * + * @access private + */ + function _tag_close( &$parser, $tag ) { + + } + + function create(&$xmls) { + return array(); + } + + /** + * Destroys the object + */ + function destroy() { + } + + /** + * Checks whether the specified RDBMS is supported by the current + * database object or its ranking ancestor. + * + * @param string $platform RDBMS platform name (from ADODB platform list). + * @return boolean TRUE if RDBMS is supported; otherwise returns FALSE. + */ + function supportedPlatform( $platform = NULL ) { + return is_object( $this->parent ) ? $this->parent->supportedPlatform( $platform ) : TRUE; + } + + /** + * Returns the prefix set by the ranking ancestor of the database object. + * + * @param string $name Prefix string. + * @return string Prefix. + */ + function prefix( $name = '' ) { + return is_object( $this->parent ) ? $this->parent->prefix( $name ) : $name; + } + + /** + * Extracts a field ID from the specified field. + * + * @param string $field Field. + * @return string Field ID. + */ + function FieldID( $field ) { + return strtoupper( preg_replace( '/^`(.+)`$/', '$1', $field ) ); + } +} + +/** +* Creates a table object in ADOdb's datadict format +* +* This class stores information about a database table. As charactaristics +* of the table are loaded from the external source, methods and properties +* of this class are used to build up the table description in ADOdb's +* datadict format. +* +* @package axmls +* @access private +*/ +class dbTable extends dbObject { + + /** + * @var string Table name + */ + var $name; + + /** + * @var array Field specifier: Meta-information about each field + */ + var $fields = array(); + + /** + * @var array List of table indexes. + */ + var $indexes = array(); + + /** + * @var array Table options: Table-level options + */ + var $opts = array(); + + /** + * @var string Field index: Keeps track of which field is currently being processed + */ + var $current_field; + + /** + * @var boolean Mark table for destruction + * @access private + */ + var $drop_table; + + /** + * @var boolean Mark field for destruction (not yet implemented) + * @access private + */ + var $drop_field = array(); + + /** + * @var array Platform-specific options + * @access private + */ + var $currentPlatform = true; + + + /** + * Iniitializes a new table object. + * + * @param string $prefix DB Object prefix + * @param array $attributes Array of table attributes. + */ + function __construct( &$parent, $attributes = NULL ) { + $this->parent = $parent; + $this->name = $this->prefix($attributes['NAME']); + } + + /** + * XML Callback to process start elements. Elements currently + * processed are: INDEX, DROP, FIELD, KEY, NOTNULL, AUTOINCREMENT & DEFAULT. + * + * @access private + */ + function _tag_open( &$parser, $tag, $attributes ) { + $this->currentElement = strtoupper( $tag ); + + switch( $this->currentElement ) { + case 'INDEX': + if( !isset( $attributes['PLATFORM'] ) OR $this->supportedPlatform( $attributes['PLATFORM'] ) ) { + $index = $this->addIndex( $attributes ); + xml_set_object( $parser, $index ); + } + break; + case 'DATA': + if( !isset( $attributes['PLATFORM'] ) OR $this->supportedPlatform( $attributes['PLATFORM'] ) ) { + $data = $this->addData( $attributes ); + xml_set_object( $parser, $data ); + } + break; + case 'DROP': + $this->drop(); + break; + case 'FIELD': + // Add a field + $fieldName = $attributes['NAME']; + $fieldType = $attributes['TYPE']; + $fieldSize = isset( $attributes['SIZE'] ) ? $attributes['SIZE'] : NULL; + $fieldOpts = !empty( $attributes['OPTS'] ) ? $attributes['OPTS'] : NULL; + + $this->addField( $fieldName, $fieldType, $fieldSize, $fieldOpts ); + break; + case 'KEY': + case 'NOTNULL': + case 'AUTOINCREMENT': + case 'DEFDATE': + case 'DEFTIMESTAMP': + case 'UNSIGNED': + // Add a field option + $this->addFieldOpt( $this->current_field, $this->currentElement ); + break; + case 'DEFAULT': + // Add a field option to the table object + + // Work around ADOdb datadict issue that misinterprets empty strings. + if( $attributes['VALUE'] == '' ) { + $attributes['VALUE'] = " '' "; + } + + $this->addFieldOpt( $this->current_field, $this->currentElement, $attributes['VALUE'] ); + break; + case 'OPT': + case 'CONSTRAINT': + // Accept platform-specific options + $this->currentPlatform = ( !isset( $attributes['PLATFORM'] ) OR $this->supportedPlatform( $attributes['PLATFORM'] ) ); + break; + default: + // print_r( array( $tag, $attributes ) ); + } + } + + /** + * XML Callback to process CDATA elements + * + * @access private + */ + function _tag_cdata( &$parser, $cdata ) { + switch( $this->currentElement ) { + // Table/field constraint + case 'CONSTRAINT': + if( isset( $this->current_field ) ) { + $this->addFieldOpt( $this->current_field, $this->currentElement, $cdata ); + } else { + $this->addTableOpt( $cdata ); + } + break; + // Table/field option + case 'OPT': + if( isset( $this->current_field ) ) { + $this->addFieldOpt( $this->current_field, $cdata ); + } else { + $this->addTableOpt( $cdata ); + } + break; + default: + + } + } + + /** + * XML Callback to process end elements + * + * @access private + */ + function _tag_close( &$parser, $tag ) { + $this->currentElement = ''; + + switch( strtoupper( $tag ) ) { + case 'TABLE': + $this->parent->addSQL( $this->create( $this->parent ) ); + xml_set_object( $parser, $this->parent ); + $this->destroy(); + break; + case 'FIELD': + unset($this->current_field); + break; + case 'OPT': + case 'CONSTRAINT': + $this->currentPlatform = true; + break; + default: + + } + } + + /** + * Adds an index to a table object + * + * @param array $attributes Index attributes + * @return object dbIndex object + */ + function addIndex( $attributes ) { + $name = strtoupper( $attributes['NAME'] ); + $this->indexes[$name] = new dbIndex( $this, $attributes ); + return $this->indexes[$name]; + } + + /** + * Adds data to a table object + * + * @param array $attributes Data attributes + * @return object dbData object + */ + function addData( $attributes ) { + if( !isset( $this->data ) ) { + $this->data = new dbData( $this, $attributes ); + } + return $this->data; + } + + /** + * Adds a field to a table object + * + * $name is the name of the table to which the field should be added. + * $type is an ADODB datadict field type. The following field types + * are supported as of ADODB 3.40: + * - C: varchar + * - X: CLOB (character large object) or largest varchar size + * if CLOB is not supported + * - C2: Multibyte varchar + * - X2: Multibyte CLOB + * - B: BLOB (binary large object) + * - D: Date (some databases do not support this, and we return a datetime type) + * - T: Datetime or Timestamp + * - L: Integer field suitable for storing booleans (0 or 1) + * - I: Integer (mapped to I4) + * - I1: 1-byte integer + * - I2: 2-byte integer + * - I4: 4-byte integer + * - I8: 8-byte integer + * - F: Floating point number + * - N: Numeric or decimal number + * + * @param string $name Name of the table to which the field will be added. + * @param string $type ADODB datadict field type. + * @param string $size Field size + * @param array $opts Field options array + * @return array Field specifier array + */ + function addField( $name, $type, $size = NULL, $opts = NULL ) { + $field_id = $this->FieldID( $name ); + + // Set the field index so we know where we are + $this->current_field = $field_id; + + // Set the field name (required) + $this->fields[$field_id]['NAME'] = $name; + + // Set the field type (required) + $this->fields[$field_id]['TYPE'] = $type; + + // Set the field size (optional) + if( isset( $size ) ) { + $this->fields[$field_id]['SIZE'] = $size; + } + + // Set the field options + if( isset( $opts ) ) { + $this->fields[$field_id]['OPTS'] = array($opts); + } else { + $this->fields[$field_id]['OPTS'] = array(); + } + } + + /** + * Adds a field option to the current field specifier + * + * This method adds a field option allowed by the ADOdb datadict + * and appends it to the given field. + * + * @param string $field Field name + * @param string $opt ADOdb field option + * @param mixed $value Field option value + * @return array Field specifier array + */ + function addFieldOpt( $field, $opt, $value = NULL ) { + if( $this->currentPlatform ) { + if( !isset( $value ) ) { + $this->fields[$this->FieldID( $field )]['OPTS'][] = $opt; + // Add the option and value + } else { + $this->fields[$this->FieldID( $field )]['OPTS'][] = array( $opt => $value ); + } + } + } + + /** + * Adds an option to the table + * + * This method takes a comma-separated list of table-level options + * and appends them to the table object. + * + * @param string $opt Table option + * @return array Options + */ + function addTableOpt( $opt ) { + if(isset($this->currentPlatform)) { + $this->opts[$this->parent->db->databaseType] = $opt; + } + return $this->opts; + } + + + /** + * Generates the SQL that will create the table in the database + * + * @param object $xmls adoSchema object + * @return array Array containing table creation SQL + */ + function create( &$xmls ) { + $sql = array(); + + // drop any existing indexes + if( is_array( $legacy_indexes = $xmls->dict->MetaIndexes( $this->name ) ) ) { + foreach( $legacy_indexes as $index => $index_details ) { + $sql[] = $xmls->dict->DropIndexSQL( $index, $this->name ); + } + } + + // remove fields to be dropped from table object + foreach( $this->drop_field as $field ) { + unset( $this->fields[$field] ); + } + + // if table exists + if( is_array( $legacy_fields = $xmls->dict->MetaColumns( $this->name ) ) ) { + // drop table + if( $this->drop_table ) { + $sql[] = $xmls->dict->DropTableSQL( $this->name ); + + return $sql; + } + + // drop any existing fields not in schema + foreach( $legacy_fields as $field_id => $field ) { + if( !isset( $this->fields[$field_id] ) ) { + $sql[] = $xmls->dict->DropColumnSQL( $this->name, $field->name ); + } + } + // if table doesn't exist + } else { + if( $this->drop_table ) { + return $sql; + } + + $legacy_fields = array(); + } + + // Loop through the field specifier array, building the associative array for the field options + $fldarray = array(); + + foreach( $this->fields as $field_id => $finfo ) { + // Set an empty size if it isn't supplied + if( !isset( $finfo['SIZE'] ) ) { + $finfo['SIZE'] = ''; + } + + // Initialize the field array with the type and size + $fldarray[$field_id] = array( + 'NAME' => $finfo['NAME'], + 'TYPE' => $finfo['TYPE'], + 'SIZE' => $finfo['SIZE'] + ); + + // Loop through the options array and add the field options. + if( isset( $finfo['OPTS'] ) ) { + foreach( $finfo['OPTS'] as $opt ) { + // Option has an argument. + if( is_array( $opt ) ) { + $key = key( $opt ); + $value = $opt[key( $opt )]; + @$fldarray[$field_id][$key] .= $value; + // Option doesn't have arguments + } else { + $fldarray[$field_id][$opt] = $opt; + } + } + } + } + + if( empty( $legacy_fields ) ) { + // Create the new table + $sql[] = $xmls->dict->CreateTableSQL( $this->name, $fldarray, $this->opts ); + logMsg( end( $sql ), 'Generated CreateTableSQL' ); + } else { + // Upgrade an existing table + logMsg( "Upgrading {$this->name} using '{$xmls->upgrade}'" ); + switch( $xmls->upgrade ) { + // Use ChangeTableSQL + case 'ALTER': + logMsg( 'Generated ChangeTableSQL (ALTERing table)' ); + $sql[] = $xmls->dict->ChangeTableSQL( $this->name, $fldarray, $this->opts ); + break; + case 'REPLACE': + logMsg( 'Doing upgrade REPLACE (testing)' ); + $sql[] = $xmls->dict->DropTableSQL( $this->name ); + $sql[] = $xmls->dict->CreateTableSQL( $this->name, $fldarray, $this->opts ); + break; + // ignore table + default: + return array(); + } + } + + foreach( $this->indexes as $index ) { + $sql[] = $index->create( $xmls ); + } + + if( isset( $this->data ) ) { + $sql[] = $this->data->create( $xmls ); + } + + return $sql; + } + + /** + * Marks a field or table for destruction + */ + function drop() { + if( isset( $this->current_field ) ) { + // Drop the current field + logMsg( "Dropping field '{$this->current_field}' from table '{$this->name}'" ); + // $this->drop_field[$this->current_field] = $xmls->dict->DropColumnSQL( $this->name, $this->current_field ); + $this->drop_field[$this->current_field] = $this->current_field; + } else { + // Drop the current table + logMsg( "Dropping table '{$this->name}'" ); + // $this->drop_table = $xmls->dict->DropTableSQL( $this->name ); + $this->drop_table = TRUE; + } + } +} + +/** +* Creates an index object in ADOdb's datadict format +* +* This class stores information about a database index. As charactaristics +* of the index are loaded from the external source, methods and properties +* of this class are used to build up the index description in ADOdb's +* datadict format. +* +* @package axmls +* @access private +*/ +class dbIndex extends dbObject { + + /** + * @var string Index name + */ + var $name; + + /** + * @var array Index options: Index-level options + */ + var $opts = array(); + + /** + * @var array Indexed fields: Table columns included in this index + */ + var $columns = array(); + + /** + * @var boolean Mark index for destruction + * @access private + */ + var $drop = FALSE; + + /** + * Initializes the new dbIndex object. + * + * @param object $parent Parent object + * @param array $attributes Attributes + * + * @internal + */ + function __construct( &$parent, $attributes = NULL ) { + $this->parent = $parent; + + $this->name = $this->prefix ($attributes['NAME']); + } + + /** + * XML Callback to process start elements + * + * Processes XML opening tags. + * Elements currently processed are: DROP, CLUSTERED, BITMAP, UNIQUE, FULLTEXT & HASH. + * + * @access private + */ + function _tag_open( &$parser, $tag, $attributes ) { + $this->currentElement = strtoupper( $tag ); + + switch( $this->currentElement ) { + case 'DROP': + $this->drop(); + break; + case 'CLUSTERED': + case 'BITMAP': + case 'UNIQUE': + case 'FULLTEXT': + case 'HASH': + // Add index Option + $this->addIndexOpt( $this->currentElement ); + break; + default: + // print_r( array( $tag, $attributes ) ); + } + } + + /** + * XML Callback to process CDATA elements + * + * Processes XML cdata. + * + * @access private + */ + function _tag_cdata( &$parser, $cdata ) { + switch( $this->currentElement ) { + // Index field name + case 'COL': + $this->addField( $cdata ); + break; + default: + + } + } + + /** + * XML Callback to process end elements + * + * @access private + */ + function _tag_close( &$parser, $tag ) { + $this->currentElement = ''; + + switch( strtoupper( $tag ) ) { + case 'INDEX': + xml_set_object( $parser, $this->parent ); + break; + } + } + + /** + * Adds a field to the index + * + * @param string $name Field name + * @return string Field list + */ + function addField( $name ) { + $this->columns[$this->FieldID( $name )] = $name; + + // Return the field list + return $this->columns; + } + + /** + * Adds options to the index + * + * @param string $opt Comma-separated list of index options. + * @return string Option list + */ + function addIndexOpt( $opt ) { + $this->opts[] = $opt; + + // Return the options list + return $this->opts; + } + + /** + * Generates the SQL that will create the index in the database + * + * @param object $xmls adoSchema object + * @return array Array containing index creation SQL + */ + function create( &$xmls ) { + if( $this->drop ) { + return NULL; + } + + // eliminate any columns that aren't in the table + foreach( $this->columns as $id => $col ) { + if( !isset( $this->parent->fields[$id] ) ) { + unset( $this->columns[$id] ); + } + } + + return $xmls->dict->CreateIndexSQL( $this->name, $this->parent->name, $this->columns, $this->opts ); + } + + /** + * Marks an index for destruction + */ + function drop() { + $this->drop = TRUE; + } +} + +/** +* Creates a data object in ADOdb's datadict format +* +* This class stores information about table data, and is called +* when we need to load field data into a table. +* +* @package axmls +* @access private +*/ +class dbData extends dbObject { + + var $data = array(); + + var $row; + + /** + * Initializes the new dbData object. + * + * @param object $parent Parent object + * @param array $attributes Attributes + * + * @internal + */ + function __construct( &$parent, $attributes = NULL ) { + $this->parent = $parent; + } + + /** + * XML Callback to process start elements + * + * Processes XML opening tags. + * Elements currently processed are: ROW and F (field). + * + * @access private + */ + function _tag_open( &$parser, $tag, $attributes ) { + $this->currentElement = strtoupper( $tag ); + + switch( $this->currentElement ) { + case 'ROW': + $this->row = count( $this->data ); + $this->data[$this->row] = array(); + break; + case 'F': + $this->addField($attributes); + default: + // print_r( array( $tag, $attributes ) ); + } + } + + /** + * XML Callback to process CDATA elements + * + * Processes XML cdata. + * + * @access private + */ + function _tag_cdata( &$parser, $cdata ) { + switch( $this->currentElement ) { + // Index field name + case 'F': + $this->addData( $cdata ); + break; + default: + + } + } + + /** + * XML Callback to process end elements + * + * @access private + */ + function _tag_close( &$parser, $tag ) { + $this->currentElement = ''; + + switch( strtoupper( $tag ) ) { + case 'DATA': + xml_set_object( $parser, $this->parent ); + break; + } + } + + /** + * Adds a field to the insert + * + * @param string $name Field name + * @return string Field list + */ + function addField( $attributes ) { + // check we're in a valid row + if( !isset( $this->row ) || !isset( $this->data[$this->row] ) ) { + return; + } + + // Set the field index so we know where we are + if( isset( $attributes['NAME'] ) ) { + $this->current_field = $this->FieldID( $attributes['NAME'] ); + } else { + $this->current_field = count( $this->data[$this->row] ); + } + + // initialise data + if( !isset( $this->data[$this->row][$this->current_field] ) ) { + $this->data[$this->row][$this->current_field] = ''; + } + } + + /** + * Adds options to the index + * + * @param string $opt Comma-separated list of index options. + * @return string Option list + */ + function addData( $cdata ) { + // check we're in a valid field + if ( isset( $this->data[$this->row][$this->current_field] ) ) { + // add data to field + $this->data[$this->row][$this->current_field] .= $cdata; + } + } + + /** + * Generates the SQL that will add/update the data in the database + * + * @param object $xmls adoSchema object + * @return array Array containing index creation SQL + */ + function create( &$xmls ) { + $table = $xmls->dict->TableName($this->parent->name); + $table_field_count = count($this->parent->fields); + $tables = $xmls->db->MetaTables(); + $sql = array(); + + $ukeys = $xmls->db->MetaPrimaryKeys( $table ); + if( !empty( $this->parent->indexes ) and !empty( $ukeys ) ) { + foreach( $this->parent->indexes as $indexObj ) { + if( !in_array( $indexObj->name, $ukeys ) ) $ukeys[] = $indexObj->name; + } + } + + // eliminate any columns that aren't in the table + foreach( $this->data as $row ) { + $table_fields = $this->parent->fields; + $fields = array(); + $rawfields = array(); // Need to keep some of the unprocessed data on hand. + + foreach( $row as $field_id => $field_data ) { + if( !array_key_exists( $field_id, $table_fields ) ) { + if( is_numeric( $field_id ) ) { + $field_id = reset( array_keys( $table_fields ) ); + } else { + continue; + } + } + + $name = $table_fields[$field_id]['NAME']; + + switch( $table_fields[$field_id]['TYPE'] ) { + case 'I': + case 'I1': + case 'I2': + case 'I4': + case 'I8': + $fields[$name] = intval($field_data); + break; + case 'C': + case 'C2': + case 'X': + case 'X2': + default: + $fields[$name] = $xmls->db->qstr( $field_data ); + $rawfields[$name] = $field_data; + } + + unset($table_fields[$field_id]); + + } + + // check that at least 1 column is specified + if( empty( $fields ) ) { + continue; + } + + // check that no required columns are missing + if( count( $fields ) < $table_field_count ) { + foreach( $table_fields as $field ) { + if( isset( $field['OPTS'] ) and ( in_array( 'NOTNULL', $field['OPTS'] ) || in_array( 'KEY', $field['OPTS'] ) ) && !in_array( 'AUTOINCREMENT', $field['OPTS'] ) ) { + continue(2); + } + } + } + + // The rest of this method deals with updating existing data records. + + if( !in_array( $table, $tables ) or ( $mode = $xmls->existingData() ) == XMLS_MODE_INSERT ) { + // Table doesn't yet exist, so it's safe to insert. + logMsg( "$table doesn't exist, inserting or mode is INSERT" ); + $sql[] = 'INSERT INTO '. $table .' ('. implode( ',', array_keys( $fields ) ) .') VALUES ('. implode( ',', $fields ) .')'; + continue; + } + + // Prepare to test for potential violations. Get primary keys and unique indexes + $mfields = array_merge( $fields, $rawfields ); + $keyFields = array_intersect( $ukeys, array_keys( $mfields ) ); + + if( empty( $ukeys ) or count( $keyFields ) == 0 ) { + // No unique keys in schema, so safe to insert + logMsg( "Either schema or data has no unique keys, so safe to insert" ); + $sql[] = 'INSERT INTO '. $table .' ('. implode( ',', array_keys( $fields ) ) .') VALUES ('. implode( ',', $fields ) .')'; + continue; + } + + // Select record containing matching unique keys. + $where = ''; + foreach( $ukeys as $key ) { + if( isset( $mfields[$key] ) and $mfields[$key] ) { + if( $where ) $where .= ' AND '; + $where .= $key . ' = ' . $xmls->db->qstr( $mfields[$key] ); + } + } + $records = $xmls->db->Execute( 'SELECT * FROM ' . $table . ' WHERE ' . $where ); + switch( $records->RecordCount() ) { + case 0: + // No matching record, so safe to insert. + logMsg( "No matching records. Inserting new row with unique data" ); + $sql[] = $xmls->db->GetInsertSQL( $records, $mfields ); + break; + case 1: + // Exactly one matching record, so we can update if the mode permits. + logMsg( "One matching record..." ); + if( $mode == XMLS_MODE_UPDATE ) { + logMsg( "...Updating existing row from unique data" ); + $sql[] = $xmls->db->GetUpdateSQL( $records, $mfields ); + } + break; + default: + // More than one matching record; the result is ambiguous, so we must ignore the row. + logMsg( "More than one matching record. Ignoring row." ); + } + } + return $sql; + } +} + +/** +* Creates the SQL to execute a list of provided SQL queries +* +* @package axmls +* @access private +*/ +class dbQuerySet extends dbObject { + + /** + * @var array List of SQL queries + */ + var $queries = array(); + + /** + * @var string String used to build of a query line by line + */ + var $query; + + /** + * @var string Query prefix key + */ + var $prefixKey = ''; + + /** + * @var boolean Auto prefix enable (TRUE) + */ + var $prefixMethod = 'AUTO'; + + /** + * Initializes the query set. + * + * @param object $parent Parent object + * @param array $attributes Attributes + */ + function __construct( &$parent, $attributes = NULL ) { + $this->parent = $parent; + + // Overrides the manual prefix key + if( isset( $attributes['KEY'] ) ) { + $this->prefixKey = $attributes['KEY']; + } + + $prefixMethod = isset( $attributes['PREFIXMETHOD'] ) ? strtoupper( trim( $attributes['PREFIXMETHOD'] ) ) : ''; + + // Enables or disables automatic prefix prepending + switch( $prefixMethod ) { + case 'AUTO': + $this->prefixMethod = 'AUTO'; + break; + case 'MANUAL': + $this->prefixMethod = 'MANUAL'; + break; + case 'NONE': + $this->prefixMethod = 'NONE'; + break; + } + } + + /** + * XML Callback to process start elements. Elements currently + * processed are: QUERY. + * + * @access private + */ + function _tag_open( &$parser, $tag, $attributes ) { + $this->currentElement = strtoupper( $tag ); + + switch( $this->currentElement ) { + case 'QUERY': + // Create a new query in a SQL queryset. + // Ignore this query set if a platform is specified and it's different than the + // current connection platform. + if( !isset( $attributes['PLATFORM'] ) OR $this->supportedPlatform( $attributes['PLATFORM'] ) ) { + $this->newQuery(); + } else { + $this->discardQuery(); + } + break; + default: + // print_r( array( $tag, $attributes ) ); + } + } + + /** + * XML Callback to process CDATA elements + */ + function _tag_cdata( &$parser, $cdata ) { + switch( $this->currentElement ) { + // Line of queryset SQL data + case 'QUERY': + $this->buildQuery( $cdata ); + break; + default: + + } + } + + /** + * XML Callback to process end elements + * + * @access private + */ + function _tag_close( &$parser, $tag ) { + $this->currentElement = ''; + + switch( strtoupper( $tag ) ) { + case 'QUERY': + // Add the finished query to the open query set. + $this->addQuery(); + break; + case 'SQL': + $this->parent->addSQL( $this->create( $this->parent ) ); + xml_set_object( $parser, $this->parent ); + $this->destroy(); + break; + default: + + } + } + + /** + * Re-initializes the query. + * + * @return boolean TRUE + */ + function newQuery() { + $this->query = ''; + + return TRUE; + } + + /** + * Discards the existing query. + * + * @return boolean TRUE + */ + function discardQuery() { + unset( $this->query ); + + return TRUE; + } + + /** + * Appends a line to a query that is being built line by line + * + * @param string $data Line of SQL data or NULL to initialize a new query + * @return string SQL query string. + */ + function buildQuery( $sql = NULL ) { + if( !isset( $this->query ) OR empty( $sql ) ) { + return FALSE; + } + + $this->query .= $sql; + + return $this->query; + } + + /** + * Adds a completed query to the query list + * + * @return string SQL of added query + */ + function addQuery() { + if( !isset( $this->query ) ) { + return FALSE; + } + + $this->queries[] = $return = trim($this->query); + + unset( $this->query ); + + return $return; + } + + /** + * Creates and returns the current query set + * + * @param object $xmls adoSchema object + * @return array Query set + */ + function create( &$xmls ) { + foreach( $this->queries as $id => $query ) { + switch( $this->prefixMethod ) { + case 'AUTO': + // Enable auto prefix replacement + + // Process object prefix. + // Evaluate SQL statements to prepend prefix to objects + $query = $this->prefixQuery( '/^\s*((?is)INSERT\s+(INTO\s+)?)((\w+\s*,?\s*)+)(\s.*$)/', $query, $xmls->objectPrefix ); + $query = $this->prefixQuery( '/^\s*((?is)UPDATE\s+(FROM\s+)?)((\w+\s*,?\s*)+)(\s.*$)/', $query, $xmls->objectPrefix ); + $query = $this->prefixQuery( '/^\s*((?is)DELETE\s+(FROM\s+)?)((\w+\s*,?\s*)+)(\s.*$)/', $query, $xmls->objectPrefix ); + + // SELECT statements aren't working yet + #$data = preg_replace( '/(?ias)(^\s*SELECT\s+.*\s+FROM)\s+(\W\s*,?\s*)+((?i)\s+WHERE.*$)/', "\1 $prefix\2 \3", $data ); + + case 'MANUAL': + // If prefixKey is set and has a value then we use it to override the default constant XMLS_PREFIX. + // If prefixKey is not set, we use the default constant XMLS_PREFIX + if( isset( $this->prefixKey ) AND( $this->prefixKey !== '' ) ) { + // Enable prefix override + $query = str_replace( $this->prefixKey, $xmls->objectPrefix, $query ); + } else { + // Use default replacement + $query = str_replace( XMLS_PREFIX , $xmls->objectPrefix, $query ); + } + } + + $this->queries[$id] = trim( $query ); + } + + // Return the query set array + return $this->queries; + } + + /** + * Rebuilds the query with the prefix attached to any objects + * + * @param string $regex Regex used to add prefix + * @param string $query SQL query string + * @param string $prefix Prefix to be appended to tables, indices, etc. + * @return string Prefixed SQL query string. + */ + function prefixQuery( $regex, $query, $prefix = NULL ) { + if( !isset( $prefix ) ) { + return $query; + } + + if( preg_match( $regex, $query, $match ) ) { + $preamble = $match[1]; + $postamble = $match[5]; + $objectList = explode( ',', $match[3] ); + // $prefix = $prefix . '_'; + + $prefixedList = ''; + + foreach( $objectList as $object ) { + if( $prefixedList !== '' ) { + $prefixedList .= ', '; + } + + $prefixedList .= $prefix . trim( $object ); + } + + $query = $preamble . ' ' . $prefixedList . ' ' . $postamble; + } + + return $query; + } +} + +/** +* Loads and parses an XML file, creating an array of "ready-to-run" SQL statements +* +* This class is used to load and parse the XML file, to create an array of SQL statements +* that can be used to build a database, and to build the database using the SQL array. +* +* @tutorial getting_started.pkg +* +* @author Richard Tango-Lowy & Dan Cech +* @version $Revision: 1.62 $ +* +* @package axmls +*/ +class adoSchema { + + /** + * @var array Array containing SQL queries to generate all objects + * @access private + */ + var $sqlArray; + + /** + * @var object ADOdb connection object + * @access private + */ + var $db; + + /** + * @var object ADOdb Data Dictionary + * @access private + */ + var $dict; + + /** + * @var string Current XML element + * @access private + */ + var $currentElement = ''; + + /** + * @var string If set (to 'ALTER' or 'REPLACE'), upgrade an existing database + * @access private + */ + var $upgrade = ''; + + /** + * @var string Optional object prefix + * @access private + */ + var $objectPrefix = ''; + + /** + * @var long Original Magic Quotes Runtime value + * @access private + */ + var $mgq; + + /** + * @var long System debug + * @access private + */ + var $debug; + + /** + * @var string Regular expression to find schema version + * @access private + */ + var $versionRegex = '/<schema.*?( version="([^"]*)")?.*?>/'; + + /** + * @var string Current schema version + * @access private + */ + var $schemaVersion; + + /** + * @var int Success of last Schema execution + */ + var $success; + + /** + * @var bool Execute SQL inline as it is generated + */ + var $executeInline; + + /** + * @var bool Continue SQL execution if errors occur + */ + var $continueOnError; + + /** + * @var int How to handle existing data rows (insert, update, or ignore) + */ + var $existingData; + + /** + * Creates an adoSchema object + * + * Creating an adoSchema object is the first step in processing an XML schema. + * The only parameter is an ADOdb database connection object, which must already + * have been created. + * + * @param object $db ADOdb database connection object. + */ + function __construct( $db ) { + // Initialize the environment + $this->mgq = get_magic_quotes_runtime(); + if ($this->mgq !== false) { + ini_set('magic_quotes_runtime', 0 ); + } + + $this->db = $db; + $this->debug = $this->db->debug; + $this->dict = NewDataDictionary( $this->db ); + $this->sqlArray = array(); + $this->schemaVersion = XMLS_SCHEMA_VERSION; + $this->executeInline( XMLS_EXECUTE_INLINE ); + $this->continueOnError( XMLS_CONTINUE_ON_ERROR ); + $this->existingData( XMLS_EXISTING_DATA ); + $this->setUpgradeMethod(); + } + + /** + * Sets the method to be used for upgrading an existing database + * + * Use this method to specify how existing database objects should be upgraded. + * The method option can be set to ALTER, REPLACE, BEST, or NONE. ALTER attempts to + * alter each database object directly, REPLACE attempts to rebuild each object + * from scratch, BEST attempts to determine the best upgrade method for each + * object, and NONE disables upgrading. + * + * This method is not yet used by AXMLS, but exists for backward compatibility. + * The ALTER method is automatically assumed when the adoSchema object is + * instantiated; other upgrade methods are not currently supported. + * + * @param string $method Upgrade method (ALTER|REPLACE|BEST|NONE) + * @returns string Upgrade method used + */ + function SetUpgradeMethod( $method = '' ) { + if( !is_string( $method ) ) { + return FALSE; + } + + $method = strtoupper( $method ); + + // Handle the upgrade methods + switch( $method ) { + case 'ALTER': + $this->upgrade = $method; + break; + case 'REPLACE': + $this->upgrade = $method; + break; + case 'BEST': + $this->upgrade = 'ALTER'; + break; + case 'NONE': + $this->upgrade = 'NONE'; + break; + default: + // Use default if no legitimate method is passed. + $this->upgrade = XMLS_DEFAULT_UPGRADE_METHOD; + } + + return $this->upgrade; + } + + /** + * Specifies how to handle existing data row when there is a unique key conflict. + * + * The existingData setting specifies how the parser should handle existing rows + * when a unique key violation occurs during the insert. This can happen when inserting + * data into an existing table with one or more primary keys or unique indexes. + * The existingData method takes one of three options: XMLS_MODE_INSERT attempts + * to always insert the data as a new row. In the event of a unique key violation, + * the database will generate an error. XMLS_MODE_UPDATE attempts to update the + * any existing rows with the new data based upon primary or unique key fields in + * the schema. If the data row in the schema specifies no unique fields, the row + * data will be inserted as a new row. XMLS_MODE_IGNORE specifies that any data rows + * that would result in a unique key violation be ignored; no inserts or updates will + * take place. For backward compatibility, the default setting is XMLS_MODE_INSERT, + * but XMLS_MODE_UPDATE will generally be the most appropriate setting. + * + * @param int $mode XMLS_MODE_INSERT, XMLS_MODE_UPDATE, or XMLS_MODE_IGNORE + * @return int current mode + */ + function ExistingData( $mode = NULL ) { + if( is_int( $mode ) ) { + switch( $mode ) { + case XMLS_MODE_UPDATE: + $mode = XMLS_MODE_UPDATE; + break; + case XMLS_MODE_IGNORE: + $mode = XMLS_MODE_IGNORE; + break; + case XMLS_MODE_INSERT: + $mode = XMLS_MODE_INSERT; + break; + default: + $mode = XMLS_EXISTING_DATA; + break; + } + $this->existingData = $mode; + } + + return $this->existingData; + } + + /** + * Enables/disables inline SQL execution. + * + * Call this method to enable or disable inline execution of the schema. If the mode is set to TRUE (inline execution), + * AXMLS applies the SQL to the database immediately as each schema entity is parsed. If the mode + * is set to FALSE (post execution), AXMLS parses the entire schema and you will need to call adoSchema::ExecuteSchema() + * to apply the schema to the database. + * + * @param bool $mode execute + * @return bool current execution mode + * + * @see ParseSchema(), ExecuteSchema() + */ + function ExecuteInline( $mode = NULL ) { + if( is_bool( $mode ) ) { + $this->executeInline = $mode; + } + + return $this->executeInline; + } + + /** + * Enables/disables SQL continue on error. + * + * Call this method to enable or disable continuation of SQL execution if an error occurs. + * If the mode is set to TRUE (continue), AXMLS will continue to apply SQL to the database, even if an error occurs. + * If the mode is set to FALSE (halt), AXMLS will halt execution of generated sql if an error occurs, though parsing + * of the schema will continue. + * + * @param bool $mode execute + * @return bool current continueOnError mode + * + * @see addSQL(), ExecuteSchema() + */ + function ContinueOnError( $mode = NULL ) { + if( is_bool( $mode ) ) { + $this->continueOnError = $mode; + } + + return $this->continueOnError; + } + + /** + * Loads an XML schema from a file and converts it to SQL. + * + * Call this method to load the specified schema (see the DTD for the proper format) from + * the filesystem and generate the SQL necessary to create the database + * described. This method automatically converts the schema to the latest + * axmls schema version. + * @see ParseSchemaString() + * + * @param string $file Name of XML schema file. + * @param bool $returnSchema Return schema rather than parsing. + * @return array Array of SQL queries, ready to execute + */ + function ParseSchema( $filename, $returnSchema = FALSE ) { + return $this->ParseSchemaString( $this->ConvertSchemaFile( $filename ), $returnSchema ); + } + + /** + * Loads an XML schema from a file and converts it to SQL. + * + * Call this method to load the specified schema directly from a file (see + * the DTD for the proper format) and generate the SQL necessary to create + * the database described by the schema. Use this method when you are dealing + * with large schema files. Otherwise, ParseSchema() is faster. + * This method does not automatically convert the schema to the latest axmls + * schema version. You must convert the schema manually using either the + * ConvertSchemaFile() or ConvertSchemaString() method. + * @see ParseSchema() + * @see ConvertSchemaFile() + * @see ConvertSchemaString() + * + * @param string $file Name of XML schema file. + * @param bool $returnSchema Return schema rather than parsing. + * @return array Array of SQL queries, ready to execute. + * + * @deprecated Replaced by adoSchema::ParseSchema() and adoSchema::ParseSchemaString() + * @see ParseSchema(), ParseSchemaString() + */ + function ParseSchemaFile( $filename, $returnSchema = FALSE ) { + // Open the file + if( !($fp = fopen( $filename, 'r' )) ) { + logMsg( 'Unable to open file' ); + return FALSE; + } + + // do version detection here + if( $this->SchemaFileVersion( $filename ) != $this->schemaVersion ) { + logMsg( 'Invalid Schema Version' ); + return FALSE; + } + + if( $returnSchema ) { + $xmlstring = ''; + while( $data = fread( $fp, 4096 ) ) { + $xmlstring .= $data . "\n"; + } + return $xmlstring; + } + + $this->success = 2; + + $xmlParser = $this->create_parser(); + + // Process the file + while( $data = fread( $fp, 4096 ) ) { + if( !xml_parse( $xmlParser, $data, feof( $fp ) ) ) { + die( sprintf( + "XML error: %s at line %d", + xml_error_string( xml_get_error_code( $xmlParser) ), + xml_get_current_line_number( $xmlParser) + ) ); + } + } + + xml_parser_free( $xmlParser ); + + return $this->sqlArray; + } + + /** + * Converts an XML schema string to SQL. + * + * Call this method to parse a string containing an XML schema (see the DTD for the proper format) + * and generate the SQL necessary to create the database described by the schema. + * @see ParseSchema() + * + * @param string $xmlstring XML schema string. + * @param bool $returnSchema Return schema rather than parsing. + * @return array Array of SQL queries, ready to execute. + */ + function ParseSchemaString( $xmlstring, $returnSchema = FALSE ) { + if( !is_string( $xmlstring ) OR empty( $xmlstring ) ) { + logMsg( 'Empty or Invalid Schema' ); + return FALSE; + } + + // do version detection here + if( $this->SchemaStringVersion( $xmlstring ) != $this->schemaVersion ) { + logMsg( 'Invalid Schema Version' ); + return FALSE; + } + + if( $returnSchema ) { + return $xmlstring; + } + + $this->success = 2; + + $xmlParser = $this->create_parser(); + + if( !xml_parse( $xmlParser, $xmlstring, TRUE ) ) { + die( sprintf( + "XML error: %s at line %d", + xml_error_string( xml_get_error_code( $xmlParser) ), + xml_get_current_line_number( $xmlParser) + ) ); + } + + xml_parser_free( $xmlParser ); + + return $this->sqlArray; + } + + /** + * Loads an XML schema from a file and converts it to uninstallation SQL. + * + * Call this method to load the specified schema (see the DTD for the proper format) from + * the filesystem and generate the SQL necessary to remove the database described. + * @see RemoveSchemaString() + * + * @param string $file Name of XML schema file. + * @param bool $returnSchema Return schema rather than parsing. + * @return array Array of SQL queries, ready to execute + */ + function RemoveSchema( $filename, $returnSchema = FALSE ) { + return $this->RemoveSchemaString( $this->ConvertSchemaFile( $filename ), $returnSchema ); + } + + /** + * Converts an XML schema string to uninstallation SQL. + * + * Call this method to parse a string containing an XML schema (see the DTD for the proper format) + * and generate the SQL necessary to uninstall the database described by the schema. + * @see RemoveSchema() + * + * @param string $schema XML schema string. + * @param bool $returnSchema Return schema rather than parsing. + * @return array Array of SQL queries, ready to execute. + */ + function RemoveSchemaString( $schema, $returnSchema = FALSE ) { + + // grab current version + if( !( $version = $this->SchemaStringVersion( $schema ) ) ) { + return FALSE; + } + + return $this->ParseSchemaString( $this->TransformSchema( $schema, 'remove-' . $version), $returnSchema ); + } + + /** + * Applies the current XML schema to the database (post execution). + * + * Call this method to apply the current schema (generally created by calling + * ParseSchema() or ParseSchemaString() ) to the database (creating the tables, indexes, + * and executing other SQL specified in the schema) after parsing. + * @see ParseSchema(), ParseSchemaString(), ExecuteInline() + * + * @param array $sqlArray Array of SQL statements that will be applied rather than + * the current schema. + * @param boolean $continueOnErr Continue to apply the schema even if an error occurs. + * @returns integer 0 if failure, 1 if errors, 2 if successful. + */ + function ExecuteSchema( $sqlArray = NULL, $continueOnErr = NULL ) { + if( !is_bool( $continueOnErr ) ) { + $continueOnErr = $this->ContinueOnError(); + } + + if( !isset( $sqlArray ) ) { + $sqlArray = $this->sqlArray; + } + + if( !is_array( $sqlArray ) ) { + $this->success = 0; + } else { + $this->success = $this->dict->ExecuteSQLArray( $sqlArray, $continueOnErr ); + } + + return $this->success; + } + + /** + * Returns the current SQL array. + * + * Call this method to fetch the array of SQL queries resulting from + * ParseSchema() or ParseSchemaString(). + * + * @param string $format Format: HTML, TEXT, or NONE (PHP array) + * @return array Array of SQL statements or FALSE if an error occurs + */ + function PrintSQL( $format = 'NONE' ) { + $sqlArray = null; + return $this->getSQL( $format, $sqlArray ); + } + + /** + * Saves the current SQL array to the local filesystem as a list of SQL queries. + * + * Call this method to save the array of SQL queries (generally resulting from a + * parsed XML schema) to the filesystem. + * + * @param string $filename Path and name where the file should be saved. + * @return boolean TRUE if save is successful, else FALSE. + */ + function SaveSQL( $filename = './schema.sql' ) { + + if( !isset( $sqlArray ) ) { + $sqlArray = $this->sqlArray; + } + if( !isset( $sqlArray ) ) { + return FALSE; + } + + $fp = fopen( $filename, "w" ); + + foreach( $sqlArray as $key => $query ) { + fwrite( $fp, $query . ";\n" ); + } + fclose( $fp ); + } + + /** + * Create an xml parser + * + * @return object PHP XML parser object + * + * @access private + */ + function create_parser() { + // Create the parser + $xmlParser = xml_parser_create(); + xml_set_object( $xmlParser, $this ); + + // Initialize the XML callback functions + xml_set_element_handler( $xmlParser, '_tag_open', '_tag_close' ); + xml_set_character_data_handler( $xmlParser, '_tag_cdata' ); + + return $xmlParser; + } + + /** + * XML Callback to process start elements + * + * @access private + */ + function _tag_open( &$parser, $tag, $attributes ) { + switch( strtoupper( $tag ) ) { + case 'TABLE': + if( !isset( $attributes['PLATFORM'] ) OR $this->supportedPlatform( $attributes['PLATFORM'] ) ) { + $this->obj = new dbTable( $this, $attributes ); + xml_set_object( $parser, $this->obj ); + } + break; + case 'SQL': + if( !isset( $attributes['PLATFORM'] ) OR $this->supportedPlatform( $attributes['PLATFORM'] ) ) { + $this->obj = new dbQuerySet( $this, $attributes ); + xml_set_object( $parser, $this->obj ); + } + break; + default: + // print_r( array( $tag, $attributes ) ); + } + + } + + /** + * XML Callback to process CDATA elements + * + * @access private + */ + function _tag_cdata( &$parser, $cdata ) { + } + + /** + * XML Callback to process end elements + * + * @access private + * @internal + */ + function _tag_close( &$parser, $tag ) { + + } + + /** + * Converts an XML schema string to the specified DTD version. + * + * Call this method to convert a string containing an XML schema to a different AXMLS + * DTD version. For instance, to convert a schema created for an pre-1.0 version for + * AXMLS (DTD version 0.1) to a newer version of the DTD (e.g. 0.2). If no DTD version + * parameter is specified, the schema will be converted to the current DTD version. + * If the newFile parameter is provided, the converted schema will be written to the specified + * file. + * @see ConvertSchemaFile() + * + * @param string $schema String containing XML schema that will be converted. + * @param string $newVersion DTD version to convert to. + * @param string $newFile File name of (converted) output file. + * @return string Converted XML schema or FALSE if an error occurs. + */ + function ConvertSchemaString( $schema, $newVersion = NULL, $newFile = NULL ) { + + // grab current version + if( !( $version = $this->SchemaStringVersion( $schema ) ) ) { + return FALSE; + } + + if( !isset ($newVersion) ) { + $newVersion = $this->schemaVersion; + } + + if( $version == $newVersion ) { + $result = $schema; + } else { + $result = $this->TransformSchema( $schema, 'convert-' . $version . '-' . $newVersion); + } + + if( is_string( $result ) AND is_string( $newFile ) AND ( $fp = fopen( $newFile, 'w' ) ) ) { + fwrite( $fp, $result ); + fclose( $fp ); + } + + return $result; + } + + /* + // compat for pre-4.3 - jlim + function _file_get_contents($path) + { + if (function_exists('file_get_contents')) return file_get_contents($path); + return join('',file($path)); + }*/ + + /** + * Converts an XML schema file to the specified DTD version. + * + * Call this method to convert the specified XML schema file to a different AXMLS + * DTD version. For instance, to convert a schema created for an pre-1.0 version for + * AXMLS (DTD version 0.1) to a newer version of the DTD (e.g. 0.2). If no DTD version + * parameter is specified, the schema will be converted to the current DTD version. + * If the newFile parameter is provided, the converted schema will be written to the specified + * file. + * @see ConvertSchemaString() + * + * @param string $filename Name of XML schema file that will be converted. + * @param string $newVersion DTD version to convert to. + * @param string $newFile File name of (converted) output file. + * @return string Converted XML schema or FALSE if an error occurs. + */ + function ConvertSchemaFile( $filename, $newVersion = NULL, $newFile = NULL ) { + + // grab current version + if( !( $version = $this->SchemaFileVersion( $filename ) ) ) { + return FALSE; + } + + if( !isset ($newVersion) ) { + $newVersion = $this->schemaVersion; + } + + if( $version == $newVersion ) { + $result = _file_get_contents( $filename ); + + // remove unicode BOM if present + if( substr( $result, 0, 3 ) == sprintf( '%c%c%c', 239, 187, 191 ) ) { + $result = substr( $result, 3 ); + } + } else { + $result = $this->TransformSchema( $filename, 'convert-' . $version . '-' . $newVersion, 'file' ); + } + + if( is_string( $result ) AND is_string( $newFile ) AND ( $fp = fopen( $newFile, 'w' ) ) ) { + fwrite( $fp, $result ); + fclose( $fp ); + } + + return $result; + } + + function TransformSchema( $schema, $xsl, $schematype='string' ) + { + // Fail if XSLT extension is not available + if( ! function_exists( 'xslt_create' ) ) { + return FALSE; + } + + $xsl_file = dirname( __FILE__ ) . '/xsl/' . $xsl . '.xsl'; + + // look for xsl + if( !is_readable( $xsl_file ) ) { + return FALSE; + } + + switch( $schematype ) + { + case 'file': + if( !is_readable( $schema ) ) { + return FALSE; + } + + $schema = _file_get_contents( $schema ); + break; + case 'string': + default: + if( !is_string( $schema ) ) { + return FALSE; + } + } + + $arguments = array ( + '/_xml' => $schema, + '/_xsl' => _file_get_contents( $xsl_file ) + ); + + // create an XSLT processor + $xh = xslt_create (); + + // set error handler + xslt_set_error_handler ($xh, array (&$this, 'xslt_error_handler')); + + // process the schema + $result = xslt_process ($xh, 'arg:/_xml', 'arg:/_xsl', NULL, $arguments); + + xslt_free ($xh); + + return $result; + } + + /** + * Processes XSLT transformation errors + * + * @param object $parser XML parser object + * @param integer $errno Error number + * @param integer $level Error level + * @param array $fields Error information fields + * + * @access private + */ + function xslt_error_handler( $parser, $errno, $level, $fields ) { + if( is_array( $fields ) ) { + $msg = array( + 'Message Type' => ucfirst( $fields['msgtype'] ), + 'Message Code' => $fields['code'], + 'Message' => $fields['msg'], + 'Error Number' => $errno, + 'Level' => $level + ); + + switch( $fields['URI'] ) { + case 'arg:/_xml': + $msg['Input'] = 'XML'; + break; + case 'arg:/_xsl': + $msg['Input'] = 'XSL'; + break; + default: + $msg['Input'] = $fields['URI']; + } + + $msg['Line'] = $fields['line']; + } else { + $msg = array( + 'Message Type' => 'Error', + 'Error Number' => $errno, + 'Level' => $level, + 'Fields' => var_export( $fields, TRUE ) + ); + } + + $error_details = $msg['Message Type'] . ' in XSLT Transformation' . "\n" + . '<table>' . "\n"; + + foreach( $msg as $label => $details ) { + $error_details .= '<tr><td><b>' . $label . ': </b></td><td>' . htmlentities( $details ) . '</td></tr>' . "\n"; + } + + $error_details .= '</table>'; + + trigger_error( $error_details, E_USER_ERROR ); + } + + /** + * Returns the AXMLS Schema Version of the requested XML schema file. + * + * Call this method to obtain the AXMLS DTD version of the requested XML schema file. + * @see SchemaStringVersion() + * + * @param string $filename AXMLS schema file + * @return string Schema version number or FALSE on error + */ + function SchemaFileVersion( $filename ) { + // Open the file + if( !($fp = fopen( $filename, 'r' )) ) { + // die( 'Unable to open file' ); + return FALSE; + } + + // Process the file + while( $data = fread( $fp, 4096 ) ) { + if( preg_match( $this->versionRegex, $data, $matches ) ) { + return !empty( $matches[2] ) ? $matches[2] : XMLS_DEFAULT_SCHEMA_VERSION; + } + } + + return FALSE; + } + + /** + * Returns the AXMLS Schema Version of the provided XML schema string. + * + * Call this method to obtain the AXMLS DTD version of the provided XML schema string. + * @see SchemaFileVersion() + * + * @param string $xmlstring XML schema string + * @return string Schema version number or FALSE on error + */ + function SchemaStringVersion( $xmlstring ) { + if( !is_string( $xmlstring ) OR empty( $xmlstring ) ) { + return FALSE; + } + + if( preg_match( $this->versionRegex, $xmlstring, $matches ) ) { + return !empty( $matches[2] ) ? $matches[2] : XMLS_DEFAULT_SCHEMA_VERSION; + } + + return FALSE; + } + + /** + * Extracts an XML schema from an existing database. + * + * Call this method to create an XML schema string from an existing database. + * If the data parameter is set to TRUE, AXMLS will include the data from the database + * in the schema. + * + * @param boolean $data Include data in schema dump + * @indent string indentation to use + * @prefix string extract only tables with given prefix + * @stripprefix strip prefix string when storing in XML schema + * @return string Generated XML schema + */ + function ExtractSchema( $data = FALSE, $indent = ' ', $prefix = '' , $stripprefix=false) { + $old_mode = $this->db->SetFetchMode( ADODB_FETCH_NUM ); + + $schema = '<?xml version="1.0"?>' . "\n" + . '<schema version="' . $this->schemaVersion . '">' . "\n"; + if( is_array( $tables = $this->db->MetaTables( 'TABLES' ,false ,($prefix) ? str_replace('_','\_',$prefix).'%' : '') ) ) { + foreach( $tables as $table ) { + $schema .= $indent + . '<table name="' + . htmlentities( $stripprefix ? str_replace($prefix, '', $table) : $table ) + . '">' . "\n"; + + // grab details from database + $rs = $this->db->Execute( 'SELECT * FROM ' . $table . ' WHERE -1' ); + $fields = $this->db->MetaColumns( $table ); + $indexes = $this->db->MetaIndexes( $table ); + + if( is_array( $fields ) ) { + foreach( $fields as $details ) { + $extra = ''; + $content = array(); + + if( isset($details->max_length) && $details->max_length > 0 ) { + $extra .= ' size="' . $details->max_length . '"'; + } + + if( isset($details->primary_key) && $details->primary_key ) { + $content[] = '<KEY/>'; + } elseif( isset($details->not_null) && $details->not_null ) { + $content[] = '<NOTNULL/>'; + } + + if( isset($details->has_default) && $details->has_default ) { + $content[] = '<DEFAULT value="' . htmlentities( $details->default_value ) . '"/>'; + } + + if( isset($details->auto_increment) && $details->auto_increment ) { + $content[] = '<AUTOINCREMENT/>'; + } + + if( isset($details->unsigned) && $details->unsigned ) { + $content[] = '<UNSIGNED/>'; + } + + // this stops the creation of 'R' columns, + // AUTOINCREMENT is used to create auto columns + $details->primary_key = 0; + $type = $rs->MetaType( $details ); + + $schema .= str_repeat( $indent, 2 ) . '<field name="' . htmlentities( $details->name ) . '" type="' . $type . '"' . $extra; + + if( !empty( $content ) ) { + $schema .= ">\n" . str_repeat( $indent, 3 ) + . implode( "\n" . str_repeat( $indent, 3 ), $content ) . "\n" + . str_repeat( $indent, 2 ) . '</field>' . "\n"; + } else { + $schema .= "/>\n"; + } + } + } + + if( is_array( $indexes ) ) { + foreach( $indexes as $index => $details ) { + $schema .= str_repeat( $indent, 2 ) . '<index name="' . $index . '">' . "\n"; + + if( $details['unique'] ) { + $schema .= str_repeat( $indent, 3 ) . '<UNIQUE/>' . "\n"; + } + + foreach( $details['columns'] as $column ) { + $schema .= str_repeat( $indent, 3 ) . '<col>' . htmlentities( $column ) . '</col>' . "\n"; + } + + $schema .= str_repeat( $indent, 2 ) . '</index>' . "\n"; + } + } + + if( $data ) { + $rs = $this->db->Execute( 'SELECT * FROM ' . $table ); + + if( is_object( $rs ) && !$rs->EOF ) { + $schema .= str_repeat( $indent, 2 ) . "<data>\n"; + + while( $row = $rs->FetchRow() ) { + foreach( $row as $key => $val ) { + if ( $val != htmlentities( $val ) ) { + $row[$key] = '<![CDATA[' . $val . ']]>'; + } + } + + $schema .= str_repeat( $indent, 3 ) . '<row><f>' . implode( '</f><f>', $row ) . "</f></row>\n"; + } + + $schema .= str_repeat( $indent, 2 ) . "</data>\n"; + } + } + + $schema .= $indent . "</table>\n"; + } + } + + $this->db->SetFetchMode( $old_mode ); + + $schema .= '</schema>'; + return $schema; + } + + /** + * Sets a prefix for database objects + * + * Call this method to set a standard prefix that will be prepended to all database tables + * and indices when the schema is parsed. Calling setPrefix with no arguments clears the prefix. + * + * @param string $prefix Prefix that will be prepended. + * @param boolean $underscore If TRUE, automatically append an underscore character to the prefix. + * @return boolean TRUE if successful, else FALSE + */ + function SetPrefix( $prefix = '', $underscore = TRUE ) { + switch( TRUE ) { + // clear prefix + case empty( $prefix ): + logMsg( 'Cleared prefix' ); + $this->objectPrefix = ''; + return TRUE; + // prefix too long + case strlen( $prefix ) > XMLS_PREFIX_MAXLEN: + // prefix contains invalid characters + case !preg_match( '/^[a-z][a-z0-9_]+$/i', $prefix ): + logMsg( 'Invalid prefix: ' . $prefix ); + return FALSE; + } + + if( $underscore AND substr( $prefix, -1 ) != '_' ) { + $prefix .= '_'; + } + + // prefix valid + logMsg( 'Set prefix: ' . $prefix ); + $this->objectPrefix = $prefix; + return TRUE; + } + + /** + * Returns an object name with the current prefix prepended. + * + * @param string $name Name + * @return string Prefixed name + * + * @access private + */ + function prefix( $name = '' ) { + // if prefix is set + if( !empty( $this->objectPrefix ) ) { + // Prepend the object prefix to the table name + // prepend after quote if used + return preg_replace( '/^(`?)(.+)$/', '$1' . $this->objectPrefix . '$2', $name ); + } + + // No prefix set. Use name provided. + return $name; + } + + /** + * Checks if element references a specific platform + * + * @param string $platform Requested platform + * @returns boolean TRUE if platform check succeeds + * + * @access private + */ + function supportedPlatform( $platform = NULL ) { + if( !empty( $platform ) ) { + $regex = '/(^|\|)' . $this->db->databaseType . '(\||$)/i'; + + if( preg_match( '/^- /', $platform ) ) { + if (preg_match ( $regex, substr( $platform, 2 ) ) ) { + logMsg( 'Platform ' . $platform . ' is NOT supported' ); + return FALSE; + } + } else { + if( !preg_match ( $regex, $platform ) ) { + logMsg( 'Platform ' . $platform . ' is NOT supported' ); + return FALSE; + } + } + } + + logMsg( 'Platform ' . $platform . ' is supported' ); + return TRUE; + } + + /** + * Clears the array of generated SQL. + * + * @access private + */ + function clearSQL() { + $this->sqlArray = array(); + } + + /** + * Adds SQL into the SQL array. + * + * @param mixed $sql SQL to Add + * @return boolean TRUE if successful, else FALSE. + * + * @access private + */ + function addSQL( $sql = NULL ) { + if( is_array( $sql ) ) { + foreach( $sql as $line ) { + $this->addSQL( $line ); + } + + return TRUE; + } + + if( is_string( $sql ) ) { + $this->sqlArray[] = $sql; + + // if executeInline is enabled, and either no errors have occurred or continueOnError is enabled, execute SQL. + if( $this->ExecuteInline() && ( $this->success == 2 || $this->ContinueOnError() ) ) { + $saved = $this->db->debug; + $this->db->debug = $this->debug; + $ok = $this->db->Execute( $sql ); + $this->db->debug = $saved; + + if( !$ok ) { + if( $this->debug ) { + ADOConnection::outp( $this->db->ErrorMsg() ); + } + + $this->success = 1; + } + } + + return TRUE; + } + + return FALSE; + } + + /** + * Gets the SQL array in the specified format. + * + * @param string $format Format + * @return mixed SQL + * + * @access private + */ + function getSQL( $format = NULL, $sqlArray = NULL ) { + if( !is_array( $sqlArray ) ) { + $sqlArray = $this->sqlArray; + } + + if( !is_array( $sqlArray ) ) { + return FALSE; + } + + switch( strtolower( $format ) ) { + case 'string': + case 'text': + return !empty( $sqlArray ) ? implode( ";\n\n", $sqlArray ) . ';' : ''; + case'html': + return !empty( $sqlArray ) ? nl2br( htmlentities( implode( ";\n\n", $sqlArray ) . ';' ) ) : ''; + } + + return $this->sqlArray; + } + + /** + * Destroys an adoSchema object. + * + * Call this method to clean up after an adoSchema object that is no longer in use. + * @deprecated adoSchema now cleans up automatically. + */ + function Destroy() { + if ($this->mgq !== false) { + ini_set('magic_quotes_runtime', $this->mgq ); + } + } +} + +/** +* Message logging function +* +* @access private +*/ +function logMsg( $msg, $title = NULL, $force = FALSE ) { + if( XMLS_DEBUG or $force ) { + echo '<pre>'; + + if( isset( $title ) ) { + echo '<h3>' . htmlentities( $title ) . '</h3>'; + } + + if( @is_object( $this ) ) { + echo '[' . get_class( $this ) . '] '; + } + + print_r( $msg ); + + echo '</pre>'; + } +} |