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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,243 @@ | ||
| <?php | ||
| /** | ||
| * Fields mapping | ||
| * | ||
| * Some column types from MySQL | ||
| * don't have an exact equivalent for SQL Server | ||
| * That is why we need to know what column types they were | ||
| * originally to make the translations. | ||
| * | ||
| * original authors A.Garcia & A.Gentile | ||
| * */ | ||
| class Fields_map | ||
| { | ||
| var $fields_map = array(); | ||
| var $filepath = ''; | ||
|
|
||
| /** | ||
| * php4 style call to constructor. | ||
| * | ||
| * @since 2.7.1 | ||
| * | ||
| */ | ||
| function Fields_map($blogid = null) { | ||
| return $this->__construct($blogid = null); | ||
| } | ||
|
|
||
| /** | ||
| * Set filepath | ||
| * | ||
| * PHP5 style constructor for compatibility with PHP5. | ||
| * | ||
| * @since 2.7.1 | ||
| */ | ||
| function __construct($blogid = null) { | ||
| /* Allows a directory for all field maps parsed types files */ | ||
| if (defined('DB_CACHE_LOCATION')) { | ||
| $loc = DB_CACHE_LOCATION . '/'; | ||
| } else { | ||
| $loc = ''; | ||
| } | ||
|
|
||
| if (!is_null($blogid)) { | ||
| $blog_filepath = trim(str_replace('mu-plugins/wp-db-abstraction/translations/sqlsrv', '', strtr(dirname(__FILE__), '\\', '/')), '/') . $loc . '/fields_map.parsed_types.' . $blogid . '.php'; | ||
|
|
||
| // if the file doesn't exist, we're going to grab our default file, read it in to get the "base" tables, then set our filepath differently again | ||
| if (!file_exists($blog_filepath)) { | ||
| $this->filepath = trim(str_replace('mu-plugins/wp-db-abstraction/translations/sqlsrv', '', strtr(dirname(__FILE__), '\\', '/')), '/') . $loc . '/fields_map.parsed_types.php'; | ||
| $this->read(); | ||
| $this->filepath = $blog_filepath; | ||
| $this->update_for(''); | ||
| } | ||
|
|
||
| $this->filepath = $blog_filepath; | ||
| } else { | ||
| $this->filepath = trim(str_replace('mu-plugins/wp-db-abstraction/translations/sqlsrv', '', strtr(dirname(__FILE__), '\\', '/')), '/') . $loc . '/fields_map.parsed_types.php'; | ||
|
|
||
| // if the file doesn't exist yet, we'll try to write it out and blow up if we can't | ||
| if (!file_exists($this->filepath)) { | ||
| $this->update_for(''); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Get array of fields by type from fields_map property | ||
| * | ||
| * @since 2.8 | ||
| * @param $type | ||
| * @param $table | ||
| * | ||
| * @return array | ||
| */ | ||
| function by_type($type, $table = null) { | ||
| $ret = array(); | ||
| foreach ($this->fields_map as $tables => $fields) { | ||
| if ( is_array($fields) ) { | ||
| foreach ($fields as $field_name => $field_meta) { | ||
| if ( $field_meta['type'] == $type ) { | ||
| if (is_null($table) || $tables == $table) { | ||
| $ret[] = $field_name; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| return $ret; | ||
| } | ||
|
|
||
| /** | ||
| * Get array of tables from fields_map property | ||
| * | ||
| * @since 2.8 | ||
| * | ||
| * @return array | ||
| */ | ||
| function get_tables() { | ||
| $ret = array(); | ||
| foreach ($this->fields_map as $tables => $fields) { | ||
| $ret[] = $tables; | ||
| } | ||
| return $ret; | ||
| } | ||
|
|
||
| /** | ||
| * Given a query find the column types | ||
| * | ||
| * @since 2.8 | ||
| * @param $qry | ||
| * | ||
| * @return array | ||
| */ | ||
| function extract_column_types($qry) { | ||
| //table name | ||
| $matches = array(); | ||
| if (preg_match('/[CREATE|ALTER] TABLE (.*) \(/i',$qry,$matches)){ | ||
| $table_name = $matches[1]; | ||
| } else { | ||
| $table_name = ''; | ||
| } | ||
|
|
||
|
|
||
| $fields_and_indexes = substr($qry,strpos($qry,'(')+1,strrpos($qry,')')-(strpos($qry,'(')+1)); | ||
| $just_fields = trim(substr($fields_and_indexes,0,$this->index_pos($fields_and_indexes))); | ||
|
|
||
| $field_lines = explode(',',$just_fields); | ||
| $field_types = array(); | ||
| foreach ($field_lines as $field_line) { | ||
| if (!empty($field_line)){ | ||
| $field_line = trim($field_line); | ||
| $words = explode(' ',$field_line,3); | ||
| $first_word = $words[0]; | ||
| $field_type = $this->type_translations($words[1]); | ||
| if ($field_type !== false) { | ||
| $field_types[$first_word] = array('type'=>$field_type); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| //get primary key | ||
| $just_indexes = trim(substr($fields_and_indexes,$this->index_pos($fields_and_indexes))); | ||
| $matches = array(); | ||
| $has_primary_key = preg_match('/PRIMARY KEY *\((.*?)[,|\)]/i',$just_indexes,$matches); | ||
| if ($has_primary_key) { | ||
| $primary_key = trim($matches[1]); | ||
| $field_types[$primary_key] = array('type' => 'primary_id'); | ||
| } | ||
| ksort($field_types); | ||
|
|
||
| return array($table_name => $field_types); | ||
| } | ||
|
|
||
| /** | ||
| * According to the column types in MySQL | ||
| * | ||
| * @since 2.8 | ||
| * @param $field_type | ||
| * | ||
| * @return array | ||
| */ | ||
| function type_translations($field_type) { | ||
| //false means not translate this field. | ||
| $translations = array( | ||
| array('pattern' => '/varchar(.*)/', 'trans' => 'nvarchar'), | ||
| array('pattern' => '/.*text.*/', 'trans' => 'nvarchar'), | ||
| array('pattern' => '/.*datetime.*/','trans' => 'date'), | ||
| array('pattern' => '/[big|medium|tiny]*int(.*)/', 'trans' => 'int'), | ||
| ); | ||
|
|
||
| $res = ''; | ||
| while (($res === '') && ($trans = array_shift($translations))) { | ||
| if (preg_match($trans['pattern'],$field_type)) { | ||
| $res = $trans['trans']; | ||
| } | ||
| } | ||
|
|
||
| if ($res === '') { | ||
| $res = $field_type; | ||
| } | ||
| return $res; | ||
| } | ||
|
|
||
|
|
||
| /** | ||
| * Get array of tables from fields_map property | ||
| * | ||
| * @since 2.8 | ||
| * @param $fields_and_indexes | ||
| * | ||
| * @return array | ||
| */ | ||
| function index_pos($fields_and_indexes) { | ||
| $reserved_words = array('PRIMARY KEY', 'UNIQUE'); | ||
| $res = false; | ||
| while (($res === false) && ($reserved_word = array_shift($reserved_words))){ | ||
| $res = stripos($fields_and_indexes,$reserved_word); | ||
| } | ||
|
|
||
| return $res; | ||
| } | ||
|
|
||
| /** | ||
| * Update fields may given a CREATE | ALTER query | ||
| * | ||
| * @since 2.8 | ||
| * @param $qry | ||
| * | ||
| * @return array | ||
| */ | ||
| function update_for($qry) { | ||
| $this->read(); | ||
| $this->fields_map = array_merge($this->fields_map, $this->extract_column_types($qry)); | ||
| $worked = file_put_contents($this->filepath, '<?php return ' . var_export($this->fields_map, true) . "\n ?>"); | ||
| if (false === $worked) { | ||
| // two directories up is our error page | ||
| $wp_db_ab_plugin_path = realpath(dirname(__FILE__) . DIRECTORY_SEPARATOR | ||
| . '..' . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR; | ||
| $error_message = 'WP Database Abstraction must write to the wp-content/fields_map.parsed_types.php file located at ' . $this->filepath . | ||
| 'Either the file does not exist, or the webserver cannot write to the file'; | ||
| include $wp_db_ab_plugin_path . 'error_page.php'; | ||
| die; | ||
| } | ||
| return $this->fields_map; | ||
| } | ||
|
|
||
| /** | ||
| * Get the fields_map from memory or from the file. | ||
| * | ||
| * @since 2.8 | ||
| * | ||
| * @return array | ||
| */ | ||
| function read() { | ||
| if (empty($this->fields_map)) { | ||
| if (file_exists($this->filepath)) { | ||
| $this->fields_map = require($this->filepath); | ||
| } else { | ||
| $this->fields_map = array(); | ||
| } | ||
| } | ||
| return $this->fields_map; | ||
| } | ||
|
|
||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,5 @@ | ||
| <?php | ||
|
|
||
| $pn_version = '0.9.18'; | ||
| $pn_version = '0.10.0'; | ||
|
|
||
| ?> |
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