/lib/Cake/Model/Datasource/Database/Postgres.php
PHP | 887 lines | 606 code | 66 blank | 215 comment | 138 complexity | 9f79d6e38509be743781a9e41617a116 MD5 | raw file
- <?php
- /**
- * PostgreSQL layer for DBO.
- *
- * PHP 5
- *
- * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
- * Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
- *
- * Licensed under The MIT License
- * Redistributions of files must retain the above copyright notice.
- *
- * @copyright Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
- * @link http://cakephp.org CakePHP(tm) Project
- * @package Cake.Model.Datasource.Database
- * @since CakePHP(tm) v 0.9.1.114
- * @license MIT License (http://www.opensource.org/licenses/mit-license.php)
- */
- App::uses('DboSource', 'Model/Datasource');
- /**
- * PostgreSQL layer for DBO.
- *
- * @package Cake.Model.Datasource.Database
- */
- class Postgres extends DboSource {
- /**
- * Driver description
- *
- * @var string
- */
- public $description = "PostgreSQL DBO Driver";
- /**
- * Index of basic SQL commands
- *
- * @var array
- */
- protected $_commands = array(
- 'begin' => 'BEGIN',
- 'commit' => 'COMMIT',
- 'rollback' => 'ROLLBACK'
- );
- /**
- * Base driver configuration settings. Merged with user settings.
- *
- * @var array
- */
- protected $_baseConfig = array(
- 'persistent' => true,
- 'host' => 'localhost',
- 'login' => 'root',
- 'password' => '',
- 'database' => 'cake',
- 'schema' => 'public',
- 'port' => 5432,
- 'encoding' => ''
- );
- /**
- * Columns
- *
- * @var array
- */
- public $columns = array(
- 'primary_key' => array('name' => 'serial NOT NULL'),
- 'string' => array('name' => 'varchar', 'limit' => '255'),
- 'text' => array('name' => 'text'),
- 'integer' => array('name' => 'integer', 'formatter' => 'intval'),
- 'float' => array('name' => 'float', 'formatter' => 'floatval'),
- 'datetime' => array('name' => 'timestamp', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
- 'timestamp' => array('name' => 'timestamp', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
- 'time' => array('name' => 'time', 'format' => 'H:i:s', 'formatter' => 'date'),
- 'date' => array('name' => 'date', 'format' => 'Y-m-d', 'formatter' => 'date'),
- 'binary' => array('name' => 'bytea'),
- 'boolean' => array('name' => 'boolean'),
- 'number' => array('name' => 'numeric'),
- 'inet' => array('name' => 'inet')
- );
- /**
- * Starting Quote
- *
- * @var string
- */
- public $startQuote = '"';
- /**
- * Ending Quote
- *
- * @var string
- */
- public $endQuote = '"';
- /**
- * Contains mappings of custom auto-increment sequences, if a table uses a sequence name
- * other than what is dictated by convention.
- *
- * @var array
- */
- protected $_sequenceMap = array();
- /**
- * Connects to the database using options in the given configuration array.
- *
- * @return boolean True if successfully connected.
- * @throws MissingConnectionException
- */
- public function connect() {
- $config = $this->config;
- $this->connected = false;
- try {
- $flags = array(
- PDO::ATTR_PERSISTENT => $config['persistent'],
- PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
- );
- $this->_connection = new PDO(
- "pgsql:host={$config['host']};port={$config['port']};dbname={$config['database']}",
- $config['login'],
- $config['password'],
- $flags
- );
- $this->connected = true;
- if (!empty($config['encoding'])) {
- $this->setEncoding($config['encoding']);
- }
- if (!empty($config['schema'])) {
- $this->_execute('SET search_path TO ' . $config['schema']);
- }
- } catch (PDOException $e) {
- throw new MissingConnectionException(array('class' => $e->getMessage()));
- }
- return $this->connected;
- }
- /**
- * Check if PostgreSQL is enabled/loaded
- *
- * @return boolean
- */
- public function enabled() {
- return in_array('pgsql', PDO::getAvailableDrivers());
- }
- /**
- * Returns an array of tables in the database. If there are no tables, an error is raised and the application exits.
- *
- * @param mixed $data
- * @return array Array of table names in the database
- */
- public function listSources($data = null) {
- $cache = parent::listSources();
- if ($cache != null) {
- return $cache;
- }
- $schema = $this->config['schema'];
- $sql = "SELECT table_name as name FROM INFORMATION_SCHEMA.tables WHERE table_schema = ?";
- $result = $this->_execute($sql, array($schema));
- if (!$result) {
- return array();
- } else {
- $tables = array();
- foreach ($result as $item) {
- $tables[] = $item->name;
- }
- $result->closeCursor();
- parent::listSources($tables);
- return $tables;
- }
- }
- /**
- * Returns an array of the fields in given table name.
- *
- * @param Model|string $model Name of database table to inspect
- * @return array Fields in table. Keys are name and type
- */
- public function describe($model) {
- $fields = parent::describe($model);
- $table = $this->fullTableName($model, false);
- $this->_sequenceMap[$table] = array();
- $cols = null;
- if ($fields === null) {
- $cols = $this->_execute(
- "SELECT DISTINCT column_name AS name, data_type AS type, is_nullable AS null,
- column_default AS default, ordinal_position AS position, character_maximum_length AS char_length,
- character_octet_length AS oct_length FROM information_schema.columns
- WHERE table_name = ? AND table_schema = ? ORDER BY position",
- array($table, $this->config['schema'])
- );
- foreach ($cols as $c) {
- $type = $c->type;
- if (!empty($c->oct_length) && $c->char_length === null) {
- if ($c->type == 'character varying') {
- $length = null;
- $type = 'text';
- } else {
- $length = intval($c->oct_length);
- }
- } elseif (!empty($c->char_length)) {
- $length = intval($c->char_length);
- } else {
- $length = $this->length($c->type);
- }
- if (empty($length)) {
- $length = null;
- }
- $fields[$c->name] = array(
- 'type' => $this->column($type),
- 'null' => ($c->null == 'NO' ? false : true),
- 'default' => preg_replace(
- "/^'(.*)'$/",
- "$1",
- preg_replace('/::.*/', '', $c->default)
- ),
- 'length' => $length
- );
- if ($model instanceof Model) {
- if ($c->name == $model->primaryKey) {
- $fields[$c->name]['key'] = 'primary';
- if ($fields[$c->name]['type'] !== 'string') {
- $fields[$c->name]['length'] = 11;
- }
- }
- }
- if (
- $fields[$c->name]['default'] == 'NULL' ||
- preg_match('/nextval\([\'"]?([\w.]+)/', $c->default, $seq)
- ) {
- $fields[$c->name]['default'] = null;
- if (!empty($seq) && isset($seq[1])) {
- $this->_sequenceMap[$table][$c->default] = $seq[1];
- }
- }
- if ($fields[$c->name]['type'] == 'boolean' && !empty($fields[$c->name]['default'])) {
- $fields[$c->name]['default'] = constant($fields[$c->name]['default']);
- }
- }
- $this->_cacheDescription($table, $fields);
- }
- if (isset($model->sequence)) {
- $this->_sequenceMap[$table][$model->primaryKey] = $model->sequence;
- }
- if ($cols) {
- $cols->closeCursor();
- }
- return $fields;
- }
- /**
- * Returns the ID generated from the previous INSERT operation.
- *
- * @param string $source Name of the database table
- * @param string $field Name of the ID database field. Defaults to "id"
- * @return integer
- */
- public function lastInsertId($source = null, $field = 'id') {
- $seq = $this->getSequence($source, $field);
- return $this->_connection->lastInsertId($seq);
- }
- /**
- * Gets the associated sequence for the given table/field
- *
- * @param mixed $table Either a full table name (with prefix) as a string, or a model object
- * @param string $field Name of the ID database field. Defaults to "id"
- * @return string The associated sequence name from the sequence map, defaults to "{$table}_{$field}_seq"
- */
- public function getSequence($table, $field = 'id') {
- if (is_object($table)) {
- $table = $this->fullTableName($table, false);
- }
- if (isset($this->_sequenceMap[$table]) && isset($this->_sequenceMap[$table][$field])) {
- return $this->_sequenceMap[$table][$field];
- } else {
- return "{$table}_{$field}_seq";
- }
- }
- /**
- * Deletes all the records in a table and drops all associated auto-increment sequences
- *
- * @param mixed $table A string or model class representing the table to be truncated
- * @param boolean $reset true for resetting the sequence, false to leave it as is.
- * and if 1, sequences are not modified
- * @return boolean SQL TRUNCATE TABLE statement, false if not applicable.
- */
- public function truncate($table, $reset = false) {
- $fullTable = $this->fullTableName($table, false);
- if (!isset($this->_sequenceMap[$fullTable])) {
- $cache = $this->cacheSources;
- $this->cacheSources = false;
- $this->describe($table);
- $this->cacheSources = $cache;
- }
- if ($this->execute('DELETE FROM ' . $this->fullTableName($table))) {
- if (isset($this->_sequenceMap[$fullTable]) && $reset != true) {
- foreach ($this->_sequenceMap[$fullTable] as $field => $sequence) {
- $this->_execute("ALTER SEQUENCE \"{$sequence}\" RESTART WITH 1");
- }
- }
- return true;
- }
- return false;
- }
- /**
- * Prepares field names to be quoted by parent
- *
- * @param string $data
- * @return string SQL field
- */
- public function name($data) {
- if (is_string($data)) {
- $data = str_replace('"__"', '__', $data);
- }
- return parent::name($data);
- }
- /**
- * Generates the fields list of an SQL query.
- *
- * @param Model $model
- * @param string $alias Alias table name
- * @param mixed $fields
- * @param boolean $quote
- * @return array
- */
- public function fields($model, $alias = null, $fields = array(), $quote = true) {
- if (empty($alias)) {
- $alias = $model->alias;
- }
- $fields = parent::fields($model, $alias, $fields, false);
- if (!$quote) {
- return $fields;
- }
- $count = count($fields);
- if ($count >= 1 && !preg_match('/^\s*COUNT\(\*/', $fields[0])) {
- $result = array();
- for ($i = 0; $i < $count; $i++) {
- if (!preg_match('/^.+\\(.*\\)/', $fields[$i]) && !preg_match('/\s+AS\s+/', $fields[$i])) {
- if (substr($fields[$i], -1) == '*') {
- if (strpos($fields[$i], '.') !== false && $fields[$i] != $alias . '.*') {
- $build = explode('.', $fields[$i]);
- $AssociatedModel = $model->{$build[0]};
- } else {
- $AssociatedModel = $model;
- }
- $_fields = $this->fields($AssociatedModel, $AssociatedModel->alias, array_keys($AssociatedModel->schema()));
- $result = array_merge($result, $_fields);
- continue;
- }
- $prepend = '';
- if (strpos($fields[$i], 'DISTINCT') !== false) {
- $prepend = 'DISTINCT ';
- $fields[$i] = trim(str_replace('DISTINCT', '', $fields[$i]));
- }
- if (strrpos($fields[$i], '.') === false) {
- $fields[$i] = $prepend . $this->name($alias) . '.' . $this->name($fields[$i]) . ' AS ' . $this->name($alias . '__' . $fields[$i]);
- } else {
- $build = explode('.', $fields[$i]);
- $fields[$i] = $prepend . $this->name($build[0]) . '.' . $this->name($build[1]) . ' AS ' . $this->name($build[0] . '__' . $build[1]);
- }
- } else {
- $fields[$i] = preg_replace_callback('/\(([\s\.\w]+)\)/', array(&$this, '_quoteFunctionField'), $fields[$i]);
- }
- $result[] = $fields[$i];
- }
- return $result;
- }
- return $fields;
- }
- /**
- * Auxiliary function to quote matched `(Model.fields)` from a preg_replace_callback call
- * Quotes the fields in a function call.
- *
- * @param string $match matched string
- * @return string quoted string
- */
- protected function _quoteFunctionField($match) {
- $prepend = '';
- if (strpos($match[1], 'DISTINCT') !== false) {
- $prepend = 'DISTINCT ';
- $match[1] = trim(str_replace('DISTINCT', '', $match[1]));
- }
- $constant = preg_match('/^\d+|NULL|FALSE|TRUE$/i', $match[1]);
- if (!$constant && strpos($match[1], '.') === false) {
- $match[1] = $this->name($match[1]);
- } elseif (!$constant) {
- $parts = explode('.', $match[1]);
- if (!Set::numeric($parts)) {
- $match[1] = $this->name($match[1]);
- }
- }
- return '(' . $prepend . $match[1] . ')';
- }
- /**
- * Returns an array of the indexes in given datasource name.
- *
- * @param string $model Name of model to inspect
- * @return array Fields in table. Keys are column and unique
- */
- public function index($model) {
- $index = array();
- $table = $this->fullTableName($model, false);
- if ($table) {
- $indexes = $this->query("SELECT c2.relname, i.indisprimary, i.indisunique, i.indisclustered, i.indisvalid, pg_catalog.pg_get_indexdef(i.indexrelid, 0, true) as statement, c2.reltablespace
- FROM pg_catalog.pg_class c, pg_catalog.pg_class c2, pg_catalog.pg_index i
- WHERE c.oid = (
- SELECT c.oid
- FROM pg_catalog.pg_class c LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
- WHERE c.relname ~ '^(" . $table . ")$'
- AND pg_catalog.pg_table_is_visible(c.oid)
- AND n.nspname ~ '^(" . $this->config['schema'] . ")$'
- )
- AND c.oid = i.indrelid AND i.indexrelid = c2.oid
- ORDER BY i.indisprimary DESC, i.indisunique DESC, c2.relname", false);
- foreach ($indexes as $i => $info) {
- $key = array_pop($info);
- if ($key['indisprimary']) {
- $key['relname'] = 'PRIMARY';
- }
- $col = array();
- preg_match('/\(([^\)]+)\)/', $key['statement'], $indexColumns);
- $parsedColumn = $indexColumns[1];
- if (strpos($indexColumns[1], ',') !== false) {
- $parsedColumn = explode(', ', $indexColumns[1]);
- }
- $index[$key['relname']]['unique'] = $key['indisunique'];
- $index[$key['relname']]['column'] = $parsedColumn;
- }
- }
- return $index;
- }
- /**
- * Alter the Schema of a table.
- *
- * @param array $compare Results of CakeSchema::compare()
- * @param string $table name of the table
- * @return array
- */
- public function alterSchema($compare, $table = null) {
- if (!is_array($compare)) {
- return false;
- }
- $out = '';
- $colList = array();
- foreach ($compare as $curTable => $types) {
- $indexes = $colList = array();
- if (!$table || $table == $curTable) {
- $out .= 'ALTER TABLE ' . $this->fullTableName($curTable) . " \n";
- foreach ($types as $type => $column) {
- if (isset($column['indexes'])) {
- $indexes[$type] = $column['indexes'];
- unset($column['indexes']);
- }
- switch ($type) {
- case 'add':
- foreach ($column as $field => $col) {
- $col['name'] = $field;
- $colList[] = 'ADD COLUMN ' . $this->buildColumn($col);
- }
- break;
- case 'drop':
- foreach ($column as $field => $col) {
- $col['name'] = $field;
- $colList[] = 'DROP COLUMN ' . $this->name($field);
- }
- break;
- case 'change':
- foreach ($column as $field => $col) {
- if (!isset($col['name'])) {
- $col['name'] = $field;
- }
- $fieldName = $this->name($field);
- $default = isset($col['default']) ? $col['default'] : null;
- $nullable = isset($col['null']) ? $col['null'] : null;
- unset($col['default'], $col['null']);
- $colList[] = 'ALTER COLUMN '. $fieldName .' TYPE ' . str_replace(array($fieldName, 'NOT NULL'), '', $this->buildColumn($col));
- if (isset($nullable)) {
- $nullable = ($nullable) ? 'DROP NOT NULL' : 'SET NOT NULL';
- $colList[] = 'ALTER COLUMN '. $fieldName .' ' . $nullable;
- }
- if (isset($default)) {
- $colList[] = 'ALTER COLUMN '. $fieldName .' SET DEFAULT ' . $this->value($default, $col['type']);
- } else {
- $colList[] = 'ALTER COLUMN '. $fieldName .' DROP DEFAULT';
- }
- }
- break;
- }
- }
- if (isset($indexes['drop']['PRIMARY'])) {
- $colList[] = 'DROP CONSTRAINT ' . $curTable . '_pkey';
- }
- if (isset($indexes['add']['PRIMARY'])) {
- $cols = $indexes['add']['PRIMARY']['column'];
- if (is_array($cols)) {
- $cols = implode(', ', $cols);
- }
- $colList[] = 'ADD PRIMARY KEY (' . $cols . ')';
- }
- if (!empty($colList)) {
- $out .= "\t" . implode(",\n\t", $colList) . ";\n\n";
- } else {
- $out = '';
- }
- $out .= implode(";\n\t", $this->_alterIndexes($curTable, $indexes));
- }
- }
- return $out;
- }
- /**
- * Generate PostgreSQL index alteration statements for a table.
- *
- * @param string $table Table to alter indexes for
- * @param array $indexes Indexes to add and drop
- * @return array Index alteration statements
- */
- protected function _alterIndexes($table, $indexes) {
- $alter = array();
- if (isset($indexes['drop'])) {
- foreach ($indexes['drop'] as $name => $value) {
- $out = 'DROP ';
- if ($name == 'PRIMARY') {
- continue;
- } else {
- $out .= 'INDEX ' . $name;
- }
- $alter[] = $out;
- }
- }
- if (isset($indexes['add'])) {
- foreach ($indexes['add'] as $name => $value) {
- $out = 'CREATE ';
- if ($name == 'PRIMARY') {
- continue;
- } else {
- if (!empty($value['unique'])) {
- $out .= 'UNIQUE ';
- }
- $out .= 'INDEX ';
- }
- if (is_array($value['column'])) {
- $out .= $name . ' ON ' . $table . ' (' . implode(', ', array_map(array(&$this, 'name'), $value['column'])) . ')';
- } else {
- $out .= $name . ' ON ' . $table . ' (' . $this->name($value['column']) . ')';
- }
- $alter[] = $out;
- }
- }
- return $alter;
- }
- /**
- * Returns a limit statement in the correct format for the particular database.
- *
- * @param integer $limit Limit of results returned
- * @param integer $offset Offset from which to start results
- * @return string SQL limit/offset statement
- */
- public function limit($limit, $offset = null) {
- if ($limit) {
- $rt = '';
- if (!strpos(strtolower($limit), 'limit') || strpos(strtolower($limit), 'limit') === 0) {
- $rt = ' LIMIT';
- }
- $rt .= ' ' . $limit;
- if ($offset) {
- $rt .= ' OFFSET ' . $offset;
- }
- return $rt;
- }
- return null;
- }
- /**
- * Converts database-layer column types to basic types
- *
- * @param string $real Real database-layer column type (i.e. "varchar(255)")
- * @return string Abstract column type (i.e. "string")
- */
- public function column($real) {
- if (is_array($real)) {
- $col = $real['name'];
- if (isset($real['limit'])) {
- $col .= '(' . $real['limit'] . ')';
- }
- return $col;
- }
- $col = str_replace(')', '', $real);
- $limit = null;
- if (strpos($col, '(') !== false) {
- list($col, $limit) = explode('(', $col);
- }
- $floats = array(
- 'float', 'float4', 'float8', 'double', 'double precision', 'decimal', 'real', 'numeric'
- );
- switch (true) {
- case (in_array($col, array('date', 'time', 'inet', 'boolean'))):
- return $col;
- case (strpos($col, 'timestamp') !== false):
- return 'datetime';
- case (strpos($col, 'time') === 0):
- return 'time';
- case (strpos($col, 'int') !== false && $col != 'interval'):
- return 'integer';
- case (strpos($col, 'char') !== false || $col == 'uuid'):
- return 'string';
- case (strpos($col, 'text') !== false):
- return 'text';
- case (strpos($col, 'bytea') !== false):
- return 'binary';
- case (in_array($col, $floats)):
- return 'float';
- default:
- return 'text';
- break;
- }
- }
- /**
- * Gets the length of a database-native column description, or null if no length
- *
- * @param string $real Real database-layer column type (i.e. "varchar(255)")
- * @return integer An integer representing the length of the column
- */
- public function length($real) {
- $col = str_replace(array(')', 'unsigned'), '', $real);
- $limit = null;
- if (strpos($col, '(') !== false) {
- list($col, $limit) = explode('(', $col);
- }
- if ($col == 'uuid') {
- return 36;
- }
- if ($limit != null) {
- return intval($limit);
- }
- return null;
- }
- /**
- * resultSet method
- *
- * @param array $results
- * @return void
- */
- public function resultSet(&$results) {
- $this->map = array();
- $numFields = $results->columnCount();
- $index = 0;
- $j = 0;
- while ($j < $numFields) {
- $column = $results->getColumnMeta($j);
- if (strpos($column['name'], '__')) {
- list($table, $name) = explode('__', $column['name']);
- $this->map[$index++] = array($table, $name, $column['native_type']);
- } else {
- $this->map[$index++] = array(0, $column['name'], $column['native_type']);
- }
- $j++;
- }
- }
- /**
- * Fetches the next row from the current result set
- *
- * @return array
- */
- public function fetchResult() {
- if ($row = $this->_result->fetch(PDO::FETCH_NUM)) {
- $resultRow = array();
- foreach ($this->map as $index => $meta) {
- list($table, $column, $type) = $meta;
- switch ($type) {
- case 'bool':
- $resultRow[$table][$column] = is_null($row[$index]) ? null : $this->boolean($row[$index]);
- break;
- case 'binary':
- case 'bytea':
- $resultRow[$table][$column] = stream_get_contents($row[$index]);
- break;
- default:
- $resultRow[$table][$column] = $row[$index];
- break;
- }
- }
- return $resultRow;
- } else {
- $this->_result->closeCursor();
- return false;
- }
- }
- /**
- * Translates between PHP boolean values and PostgreSQL boolean values
- *
- * @param mixed $data Value to be translated
- * @param boolean $quote true to quote a boolean to be used in a query, false to return the boolean value
- * @return boolean Converted boolean value
- */
- public function boolean($data, $quote = false) {
- switch (true) {
- case ($data === true || $data === false):
- $result = $data;
- break;
- case ($data === 't' || $data === 'f'):
- $result = ($data === 't');
- break;
- case ($data === 'true' || $data === 'false'):
- $result = ($data === 'true');
- break;
- case ($data === 'TRUE' || $data === 'FALSE'):
- $result = ($data === 'TRUE');
- break;
- default:
- $result = (bool) $data;
- break;
- }
- if ($quote) {
- return ($result) ? 'TRUE' : 'FALSE';
- }
- return (bool) $result;
- }
- /**
- * Sets the database encoding
- *
- * @param mixed $enc Database encoding
- * @return boolean True on success, false on failure
- */
- public function setEncoding($enc) {
- return $this->_execute('SET NAMES ' . $this->value($enc)) !== false;
- }
- /**
- * Gets the database encoding
- *
- * @return string The database encoding
- */
- public function getEncoding() {
- $result = $this->_execute('SHOW client_encoding')->fetch();
- if ($result === false) {
- return false;
- }
- return (isset($result['client_encoding'])) ? $result['client_encoding'] : false;
- }
- /**
- * Generate a Postgres-native column schema string
- *
- * @param array $column An array structured like the following:
- * array('name'=>'value', 'type'=>'value'[, options]),
- * where options can be 'default', 'length', or 'key'.
- * @return string
- */
- public function buildColumn($column) {
- $col = $this->columns[$column['type']];
- if (!isset($col['length']) && !isset($col['limit'])) {
- unset($column['length']);
- }
- $out = preg_replace('/integer\([0-9]+\)/', 'integer', parent::buildColumn($column));
- $out = str_replace('integer serial', 'serial', $out);
- if (strpos($out, 'timestamp DEFAULT')) {
- if (isset($column['null']) && $column['null']) {
- $out = str_replace('DEFAULT NULL', '', $out);
- } else {
- $out = str_replace('DEFAULT NOT NULL', '', $out);
- }
- }
- if (strpos($out, 'DEFAULT DEFAULT')) {
- if (isset($column['null']) && $column['null']) {
- $out = str_replace('DEFAULT DEFAULT', 'DEFAULT NULL', $out);
- } elseif (in_array($column['type'], array('integer', 'float'))) {
- $out = str_replace('DEFAULT DEFAULT', 'DEFAULT 0', $out);
- } elseif ($column['type'] == 'boolean') {
- $out = str_replace('DEFAULT DEFAULT', 'DEFAULT FALSE', $out);
- }
- }
- return $out;
- }
- /**
- * Format indexes for create table
- *
- * @param array $indexes
- * @param string $table
- * @return string
- */
- public function buildIndex($indexes, $table = null) {
- $join = array();
- if (!is_array($indexes)) {
- return array();
- }
- foreach ($indexes as $name => $value) {
- if ($name == 'PRIMARY') {
- $out = 'PRIMARY KEY (' . $this->name($value['column']) . ')';
- } else {
- $out = 'CREATE ';
- if (!empty($value['unique'])) {
- $out .= 'UNIQUE ';
- }
- if (is_array($value['column'])) {
- $value['column'] = implode(', ', array_map(array(&$this, 'name'), $value['column']));
- } else {
- $value['column'] = $this->name($value['column']);
- }
- $out .= "INDEX {$name} ON {$table}({$value['column']});";
- }
- $join[] = $out;
- }
- return $join;
- }
- /**
- * Overrides DboSource::renderStatement to handle schema generation with Postgres-style indexes
- *
- * @param string $type
- * @param array $data
- * @return string
- */
- public function renderStatement($type, $data) {
- switch (strtolower($type)) {
- case 'schema':
- extract($data);
- foreach ($indexes as $i => $index) {
- if (preg_match('/PRIMARY KEY/', $index)) {
- unset($indexes[$i]);
- $columns[] = $index;
- break;
- }
- }
- $join = array('columns' => ",\n\t", 'indexes' => "\n");
- foreach (array('columns', 'indexes') as $var) {
- if (is_array(${$var})) {
- ${$var} = implode($join[$var], array_filter(${$var}));
- }
- }
- return "CREATE TABLE {$table} (\n\t{$columns}\n);\n{$indexes}";
- break;
- default:
- return parent::renderStatement($type, $data);
- break;
- }
- }
- }