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-rw-r--r--kolab.org/www/drupal-7.26/includes/database/mysql/database.inc203
-rw-r--r--kolab.org/www/drupal-7.26/includes/database/mysql/install.inc33
-rw-r--r--kolab.org/www/drupal-7.26/includes/database/mysql/query.inc94
-rw-r--r--kolab.org/www/drupal-7.26/includes/database/mysql/schema.inc536
4 files changed, 866 insertions, 0 deletions
diff --git a/kolab.org/www/drupal-7.26/includes/database/mysql/database.inc b/kolab.org/www/drupal-7.26/includes/database/mysql/database.inc
new file mode 100644
index 0000000..00d81f4
--- /dev/null
+++ b/kolab.org/www/drupal-7.26/includes/database/mysql/database.inc
@@ -0,0 +1,203 @@
+<?php
+
+/**
+ * @file
+ * Database interface code for MySQL database servers.
+ */
+
+/**
+ * @addtogroup database
+ * @{
+ */
+
+class DatabaseConnection_mysql extends DatabaseConnection {
+
+ /**
+ * Flag to indicate if the cleanup function in __destruct() should run.
+ *
+ * @var boolean
+ */
+ protected $needsCleanup = FALSE;
+
+ public function __construct(array $connection_options = array()) {
+ // This driver defaults to transaction support, except if explicitly passed FALSE.
+ $this->transactionSupport = !isset($connection_options['transactions']) || ($connection_options['transactions'] !== FALSE);
+
+ // MySQL never supports transactional DDL.
+ $this->transactionalDDLSupport = FALSE;
+
+ $this->connectionOptions = $connection_options;
+
+ // The DSN should use either a socket or a host/port.
+ if (isset($connection_options['unix_socket'])) {
+ $dsn = 'mysql:unix_socket=' . $connection_options['unix_socket'];
+ }
+ else {
+ // Default to TCP connection on port 3306.
+ $dsn = 'mysql:host=' . $connection_options['host'] . ';port=' . (empty($connection_options['port']) ? 3306 : $connection_options['port']);
+ }
+ $dsn .= ';dbname=' . $connection_options['database'];
+ // Allow PDO options to be overridden.
+ $connection_options += array(
+ 'pdo' => array(),
+ );
+ $connection_options['pdo'] += array(
+ // So we don't have to mess around with cursors and unbuffered queries by default.
+ PDO::MYSQL_ATTR_USE_BUFFERED_QUERY => TRUE,
+ // Because MySQL's prepared statements skip the query cache, because it's dumb.
+ PDO::ATTR_EMULATE_PREPARES => TRUE,
+ );
+
+ parent::__construct($dsn, $connection_options['username'], $connection_options['password'], $connection_options['pdo']);
+
+ // Force MySQL to use the UTF-8 character set. Also set the collation, if a
+ // certain one has been set; otherwise, MySQL defaults to 'utf8_general_ci'
+ // for UTF-8.
+ if (!empty($connection_options['collation'])) {
+ $this->exec('SET NAMES utf8 COLLATE ' . $connection_options['collation']);
+ }
+ else {
+ $this->exec('SET NAMES utf8');
+ }
+
+ // Set MySQL init_commands if not already defined. Default Drupal's MySQL
+ // behavior to conform more closely to SQL standards. This allows Drupal
+ // to run almost seamlessly on many different kinds of database systems.
+ // These settings force MySQL to behave the same as postgresql, or sqlite
+ // in regards to syntax interpretation and invalid data handling. See
+ // http://drupal.org/node/344575 for further discussion. Also, as MySQL 5.5
+ // changed the meaning of TRADITIONAL we need to spell out the modes one by
+ // one.
+ $connection_options += array(
+ 'init_commands' => array(),
+ );
+ $connection_options['init_commands'] += array(
+ 'sql_mode' => "SET sql_mode = 'ANSI,STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER'",
+ );
+ // Set connection options.
+ $this->exec(implode('; ', $connection_options['init_commands']));
+ }
+
+ public function __destruct() {
+ if ($this->needsCleanup) {
+ $this->nextIdDelete();
+ }
+ }
+
+ public function queryRange($query, $from, $count, array $args = array(), array $options = array()) {
+ return $this->query($query . ' LIMIT ' . (int) $from . ', ' . (int) $count, $args, $options);
+ }
+
+ public function queryTemporary($query, array $args = array(), array $options = array()) {
+ $tablename = $this->generateTemporaryTableName();
+ $this->query(preg_replace('/^SELECT/i', 'CREATE TEMPORARY TABLE {' . $tablename . '} Engine=MEMORY SELECT', $query), $args, $options);
+ return $tablename;
+ }
+
+ public function driver() {
+ return 'mysql';
+ }
+
+ public function databaseType() {
+ return 'mysql';
+ }
+
+ public function mapConditionOperator($operator) {
+ // We don't want to override any of the defaults.
+ return NULL;
+ }
+
+ public function nextId($existing_id = 0) {
+ $new_id = $this->query('INSERT INTO {sequences} () VALUES ()', array(), array('return' => Database::RETURN_INSERT_ID));
+ // This should only happen after an import or similar event.
+ if ($existing_id >= $new_id) {
+ // If we INSERT a value manually into the sequences table, on the next
+ // INSERT, MySQL will generate a larger value. However, there is no way
+ // of knowing whether this value already exists in the table. MySQL
+ // provides an INSERT IGNORE which would work, but that can mask problems
+ // other than duplicate keys. Instead, we use INSERT ... ON DUPLICATE KEY
+ // UPDATE in such a way that the UPDATE does not do anything. This way,
+ // duplicate keys do not generate errors but everything else does.
+ $this->query('INSERT INTO {sequences} (value) VALUES (:value) ON DUPLICATE KEY UPDATE value = value', array(':value' => $existing_id));
+ $new_id = $this->query('INSERT INTO {sequences} () VALUES ()', array(), array('return' => Database::RETURN_INSERT_ID));
+ }
+ $this->needsCleanup = TRUE;
+ return $new_id;
+ }
+
+ public function nextIdDelete() {
+ // While we want to clean up the table to keep it up from occupying too
+ // much storage and memory, we must keep the highest value in the table
+ // because InnoDB uses an in-memory auto-increment counter as long as the
+ // server runs. When the server is stopped and restarted, InnoDB
+ // reinitializes the counter for each table for the first INSERT to the
+ // table based solely on values from the table so deleting all values would
+ // be a problem in this case. Also, TRUNCATE resets the auto increment
+ // counter.
+ try {
+ $max_id = $this->query('SELECT MAX(value) FROM {sequences}')->fetchField();
+ // We know we are using MySQL here, no need for the slower db_delete().
+ $this->query('DELETE FROM {sequences} WHERE value < :value', array(':value' => $max_id));
+ }
+ // During testing, this function is called from shutdown with the
+ // simpletest prefix stored in $this->connection, and those tables are gone
+ // by the time shutdown is called so we need to ignore the database
+ // errors. There is no problem with completely ignoring errors here: if
+ // these queries fail, the sequence will work just fine, just use a bit
+ // more database storage and memory.
+ catch (PDOException $e) {
+ }
+ }
+
+ /**
+ * Overridden to work around issues to MySQL not supporting transactional DDL.
+ */
+ protected function popCommittableTransactions() {
+ // Commit all the committable layers.
+ foreach (array_reverse($this->transactionLayers) as $name => $active) {
+ // Stop once we found an active transaction.
+ if ($active) {
+ break;
+ }
+
+ // If there are no more layers left then we should commit.
+ unset($this->transactionLayers[$name]);
+ if (empty($this->transactionLayers)) {
+ if (!PDO::commit()) {
+ throw new DatabaseTransactionCommitFailedException();
+ }
+ }
+ else {
+ // Attempt to release this savepoint in the standard way.
+ try {
+ $this->query('RELEASE SAVEPOINT ' . $name);
+ }
+ catch (PDOException $e) {
+ // However, in MySQL (InnoDB), savepoints are automatically committed
+ // when tables are altered or created (DDL transactions are not
+ // supported). This can cause exceptions due to trying to release
+ // savepoints which no longer exist.
+ //
+ // To avoid exceptions when no actual error has occurred, we silently
+ // succeed for MySQL error code 1305 ("SAVEPOINT does not exist").
+ if ($e->errorInfo[1] == '1305') {
+ // If one SAVEPOINT was released automatically, then all were.
+ // Therefore, clean the transaction stack.
+ $this->transactionLayers = array();
+ // We also have to explain to PDO that the transaction stack has
+ // been cleaned-up.
+ PDO::commit();
+ }
+ else {
+ throw $e;
+ }
+ }
+ }
+ }
+ }
+}
+
+
+/**
+ * @} End of "addtogroup database".
+ */
diff --git a/kolab.org/www/drupal-7.26/includes/database/mysql/install.inc b/kolab.org/www/drupal-7.26/includes/database/mysql/install.inc
new file mode 100644
index 0000000..75f2ae3
--- /dev/null
+++ b/kolab.org/www/drupal-7.26/includes/database/mysql/install.inc
@@ -0,0 +1,33 @@
+<?php
+
+/**
+ * @file
+ * Installation code for MySQL embedded database engine.
+ */
+
+/**
+ * Specifies installation tasks for MySQL and equivalent databases.
+ */
+class DatabaseTasks_mysql extends DatabaseTasks {
+ /**
+ * The PDO driver name for MySQL and equivalent databases.
+ *
+ * @var string
+ */
+ protected $pdoDriver = 'mysql';
+
+ /**
+ * Returns a human-readable name string for MySQL and equivalent databases.
+ */
+ public function name() {
+ return st('MySQL, MariaDB, or equivalent');
+ }
+
+ /**
+ * Returns the minimum version for MySQL.
+ */
+ public function minimumVersion() {
+ return '5.0.15';
+ }
+}
+
diff --git a/kolab.org/www/drupal-7.26/includes/database/mysql/query.inc b/kolab.org/www/drupal-7.26/includes/database/mysql/query.inc
new file mode 100644
index 0000000..d3d2d9e
--- /dev/null
+++ b/kolab.org/www/drupal-7.26/includes/database/mysql/query.inc
@@ -0,0 +1,94 @@
+<?php
+
+/**
+ * @addtogroup database
+ * @{
+ */
+
+/**
+ * @file
+ * Query code for MySQL embedded database engine.
+ */
+
+
+class InsertQuery_mysql extends InsertQuery {
+
+ public function execute() {
+ if (!$this->preExecute()) {
+ return NULL;
+ }
+
+ // If we're selecting from a SelectQuery, finish building the query and
+ // pass it back, as any remaining options are irrelevant.
+ if (empty($this->fromQuery)) {
+ $max_placeholder = 0;
+ $values = array();
+ foreach ($this->insertValues as $insert_values) {
+ foreach ($insert_values as $value) {
+ $values[':db_insert_placeholder_' . $max_placeholder++] = $value;
+ }
+ }
+ }
+ else {
+ $values = $this->fromQuery->getArguments();
+ }
+
+ $last_insert_id = $this->connection->query((string) $this, $values, $this->queryOptions);
+
+ // Re-initialize the values array so that we can re-use this query.
+ $this->insertValues = array();
+
+ return $last_insert_id;
+ }
+
+ public function __toString() {
+ // Create a sanitized comment string to prepend to the query.
+ $comments = $this->connection->makeComment($this->comments);
+
+ // Default fields are always placed first for consistency.
+ $insert_fields = array_merge($this->defaultFields, $this->insertFields);
+
+ // If we're selecting from a SelectQuery, finish building the query and
+ // pass it back, as any remaining options are irrelevant.
+ if (!empty($this->fromQuery)) {
+ $insert_fields_string = $insert_fields ? ' (' . implode(', ', $insert_fields) . ') ' : ' ';
+ return $comments . 'INSERT INTO {' . $this->table . '}' . $insert_fields_string . $this->fromQuery;
+ }
+
+ $query = $comments . 'INSERT INTO {' . $this->table . '} (' . implode(', ', $insert_fields) . ') VALUES ';
+
+ $max_placeholder = 0;
+ $values = array();
+ if (count($this->insertValues)) {
+ foreach ($this->insertValues as $insert_values) {
+ $placeholders = array();
+
+ // Default fields aren't really placeholders, but this is the most convenient
+ // way to handle them.
+ $placeholders = array_pad($placeholders, count($this->defaultFields), 'default');
+
+ $new_placeholder = $max_placeholder + count($insert_values);
+ for ($i = $max_placeholder; $i < $new_placeholder; ++$i) {
+ $placeholders[] = ':db_insert_placeholder_' . $i;
+ }
+ $max_placeholder = $new_placeholder;
+ $values[] = '(' . implode(', ', $placeholders) . ')';
+ }
+ }
+ else {
+ // If there are no values, then this is a default-only query. We still need to handle that.
+ $placeholders = array_fill(0, count($this->defaultFields), 'default');
+ $values[] = '(' . implode(', ', $placeholders) . ')';
+ }
+
+ $query .= implode(', ', $values);
+
+ return $query;
+ }
+}
+
+class TruncateQuery_mysql extends TruncateQuery { }
+
+/**
+ * @} End of "addtogroup database".
+ */
diff --git a/kolab.org/www/drupal-7.26/includes/database/mysql/schema.inc b/kolab.org/www/drupal-7.26/includes/database/mysql/schema.inc
new file mode 100644
index 0000000..949cf4e
--- /dev/null
+++ b/kolab.org/www/drupal-7.26/includes/database/mysql/schema.inc
@@ -0,0 +1,536 @@
+<?php
+
+/**
+ * @file
+ * Database schema code for MySQL database servers.
+ */
+
+
+/**
+ * @addtogroup schemaapi
+ * @{
+ */
+
+class DatabaseSchema_mysql extends DatabaseSchema {
+
+ /**
+ * Maximum length of a table comment in MySQL.
+ */
+ const COMMENT_MAX_TABLE = 60;
+
+ /**
+ * Maximum length of a column comment in MySQL.
+ */
+ const COMMENT_MAX_COLUMN = 255;
+
+ /**
+ * Get information about the table and database name from the prefix.
+ *
+ * @return
+ * A keyed array with information about the database, table name and prefix.
+ */
+ protected function getPrefixInfo($table = 'default', $add_prefix = TRUE) {
+ $info = array('prefix' => $this->connection->tablePrefix($table));
+ if ($add_prefix) {
+ $table = $info['prefix'] . $table;
+ }
+ if (($pos = strpos($table, '.')) !== FALSE) {
+ $info['database'] = substr($table, 0, $pos);
+ $info['table'] = substr($table, ++$pos);
+ }
+ else {
+ $db_info = Database::getConnectionInfo();
+ $info['database'] = $db_info['default']['database'];
+ $info['table'] = $table;
+ }
+ return $info;
+ }
+
+ /**
+ * Build a condition to match a table name against a standard information_schema.
+ *
+ * MySQL uses databases like schemas rather than catalogs so when we build
+ * a condition to query the information_schema.tables, we set the default
+ * database as the schema unless specified otherwise, and exclude table_catalog
+ * from the condition criteria.
+ */
+ protected function buildTableNameCondition($table_name, $operator = '=', $add_prefix = TRUE) {
+ $info = $this->connection->getConnectionOptions();
+
+ $table_info = $this->getPrefixInfo($table_name, $add_prefix);
+
+ $condition = new DatabaseCondition('AND');
+ $condition->condition('table_schema', $table_info['database']);
+ $condition->condition('table_name', $table_info['table'], $operator);
+ return $condition;
+ }
+
+ /**
+ * Generate SQL to create a new table from a Drupal schema definition.
+ *
+ * @param $name
+ * The name of the table to create.
+ * @param $table
+ * A Schema API table definition array.
+ * @return
+ * An array of SQL statements to create the table.
+ */
+ protected function createTableSql($name, $table) {
+ $info = $this->connection->getConnectionOptions();
+
+ // Provide defaults if needed.
+ $table += array(
+ 'mysql_engine' => 'InnoDB',
+ 'mysql_character_set' => 'utf8',
+ );
+
+ $sql = "CREATE TABLE {" . $name . "} (\n";
+
+ // Add the SQL statement for each field.
+ foreach ($table['fields'] as $field_name => $field) {
+ $sql .= $this->createFieldSql($field_name, $this->processField($field)) . ", \n";
+ }
+
+ // Process keys & indexes.
+ $keys = $this->createKeysSql($table);
+ if (count($keys)) {
+ $sql .= implode(", \n", $keys) . ", \n";
+ }
+
+ // Remove the last comma and space.
+ $sql = substr($sql, 0, -3) . "\n) ";
+
+ $sql .= 'ENGINE = ' . $table['mysql_engine'] . ' DEFAULT CHARACTER SET ' . $table['mysql_character_set'];
+ // By default, MySQL uses the default collation for new tables, which is
+ // 'utf8_general_ci' for utf8. If an alternate collation has been set, it
+ // needs to be explicitly specified.
+ // @see DatabaseConnection_mysql
+ if (!empty($info['collation'])) {
+ $sql .= ' COLLATE ' . $info['collation'];
+ }
+
+ // Add table comment.
+ if (!empty($table['description'])) {
+ $sql .= ' COMMENT ' . $this->prepareComment($table['description'], self::COMMENT_MAX_TABLE);
+ }
+
+ return array($sql);
+ }
+
+ /**
+ * Create an SQL string for a field to be used in table creation or alteration.
+ *
+ * Before passing a field out of a schema definition into this function it has
+ * to be processed by _db_process_field().
+ *
+ * @param $name
+ * Name of the field.
+ * @param $spec
+ * The field specification, as per the schema data structure format.
+ */
+ protected function createFieldSql($name, $spec) {
+ $sql = "`" . $name . "` " . $spec['mysql_type'];
+
+ if (in_array($spec['mysql_type'], array('VARCHAR', 'CHAR', 'TINYTEXT', 'MEDIUMTEXT', 'LONGTEXT', 'TEXT'))) {
+ if (isset($spec['length'])) {
+ $sql .= '(' . $spec['length'] . ')';
+ }
+ if (!empty($spec['binary'])) {
+ $sql .= ' BINARY';
+ }
+ }
+ elseif (isset($spec['precision']) && isset($spec['scale'])) {
+ $sql .= '(' . $spec['precision'] . ', ' . $spec['scale'] . ')';
+ }
+
+ if (!empty($spec['unsigned'])) {
+ $sql .= ' unsigned';
+ }
+
+ if (isset($spec['not null'])) {
+ if ($spec['not null']) {
+ $sql .= ' NOT NULL';
+ }
+ else {
+ $sql .= ' NULL';
+ }
+ }
+
+ if (!empty($spec['auto_increment'])) {
+ $sql .= ' auto_increment';
+ }
+
+ // $spec['default'] can be NULL, so we explicitly check for the key here.
+ if (array_key_exists('default', $spec)) {
+ if (is_string($spec['default'])) {
+ $spec['default'] = "'" . $spec['default'] . "'";
+ }
+ elseif (!isset($spec['default'])) {
+ $spec['default'] = 'NULL';
+ }
+ $sql .= ' DEFAULT ' . $spec['default'];
+ }
+
+ if (empty($spec['not null']) && !isset($spec['default'])) {
+ $sql .= ' DEFAULT NULL';
+ }
+
+ // Add column comment.
+ if (!empty($spec['description'])) {
+ $sql .= ' COMMENT ' . $this->prepareComment($spec['description'], self::COMMENT_MAX_COLUMN);
+ }
+
+ return $sql;
+ }
+
+ /**
+ * Set database-engine specific properties for a field.
+ *
+ * @param $field
+ * A field description array, as specified in the schema documentation.
+ */
+ protected function processField($field) {
+
+ if (!isset($field['size'])) {
+ $field['size'] = 'normal';
+ }
+
+ // Set the correct database-engine specific datatype.
+ // In case one is already provided, force it to uppercase.
+ if (isset($field['mysql_type'])) {
+ $field['mysql_type'] = drupal_strtoupper($field['mysql_type']);
+ }
+ else {
+ $map = $this->getFieldTypeMap();
+ $field['mysql_type'] = $map[$field['type'] . ':' . $field['size']];
+ }
+
+ if (isset($field['type']) && $field['type'] == 'serial') {
+ $field['auto_increment'] = TRUE;
+ }
+
+ return $field;
+ }
+
+ public function getFieldTypeMap() {
+ // Put :normal last so it gets preserved by array_flip. This makes
+ // it much easier for modules (such as schema.module) to map
+ // database types back into schema types.
+ // $map does not use drupal_static as its value never changes.
+ static $map = array(
+ 'varchar:normal' => 'VARCHAR',
+ 'char:normal' => 'CHAR',
+
+ 'text:tiny' => 'TINYTEXT',
+ 'text:small' => 'TINYTEXT',
+ 'text:medium' => 'MEDIUMTEXT',
+ 'text:big' => 'LONGTEXT',
+ 'text:normal' => 'TEXT',
+
+ 'serial:tiny' => 'TINYINT',
+ 'serial:small' => 'SMALLINT',
+ 'serial:medium' => 'MEDIUMINT',
+ 'serial:big' => 'BIGINT',
+ 'serial:normal' => 'INT',
+
+ 'int:tiny' => 'TINYINT',
+ 'int:small' => 'SMALLINT',
+ 'int:medium' => 'MEDIUMINT',
+ 'int:big' => 'BIGINT',
+ 'int:normal' => 'INT',
+
+ 'float:tiny' => 'FLOAT',
+ 'float:small' => 'FLOAT',
+ 'float:medium' => 'FLOAT',
+ 'float:big' => 'DOUBLE',
+ 'float:normal' => 'FLOAT',
+
+ 'numeric:normal' => 'DECIMAL',
+
+ 'blob:big' => 'LONGBLOB',
+ 'blob:normal' => 'BLOB',
+ );
+ return $map;
+ }
+
+ protected function createKeysSql($spec) {
+ $keys = array();
+
+ if (!empty($spec['primary key'])) {
+ $keys[] = 'PRIMARY KEY (' . $this->createKeysSqlHelper($spec['primary key']) . ')';
+ }
+ if (!empty($spec['unique keys'])) {
+ foreach ($spec['unique keys'] as $key => $fields) {
+ $keys[] = 'UNIQUE KEY `' . $key . '` (' . $this->createKeysSqlHelper($fields) . ')';
+ }
+ }
+ if (!empty($spec['indexes'])) {
+ foreach ($spec['indexes'] as $index => $fields) {
+ $keys[] = 'INDEX `' . $index . '` (' . $this->createKeysSqlHelper($fields) . ')';
+ }
+ }
+
+ return $keys;
+ }
+
+ protected function createKeySql($fields) {
+ $return = array();
+ foreach ($fields as $field) {
+ if (is_array($field)) {
+ $return[] = '`' . $field[0] . '`(' . $field[1] . ')';
+ }
+ else {
+ $return[] = '`' . $field . '`';
+ }
+ }
+ return implode(', ', $return);
+ }
+
+ protected function createKeysSqlHelper($fields) {
+ $return = array();
+ foreach ($fields as $field) {
+ if (is_array($field)) {
+ $return[] = '`' . $field[0] . '`(' . $field[1] . ')';
+ }
+ else {
+ $return[] = '`' . $field . '`';
+ }
+ }
+ return implode(', ', $return);
+ }
+
+ public function renameTable($table, $new_name) {
+ if (!$this->tableExists($table)) {
+ throw new DatabaseSchemaObjectDoesNotExistException(t("Cannot rename %table to %table_new: table %table doesn't exist.", array('%table' => $table, '%table_new' => $new_name)));
+ }
+ if ($this->tableExists($new_name)) {
+ throw new DatabaseSchemaObjectExistsException(t("Cannot rename %table to %table_new: table %table_new already exists.", array('%table' => $table, '%table_new' => $new_name)));
+ }
+
+ $info = $this->getPrefixInfo($new_name);
+ return $this->connection->query('ALTER TABLE {' . $table . '} RENAME TO `' . $info['table'] . '`');
+ }
+
+ public function dropTable($table) {
+ if (!$this->tableExists($table)) {
+ return FALSE;
+ }
+
+ $this->connection->query('DROP TABLE {' . $table . '}');
+ return TRUE;
+ }
+
+ public function addField($table, $field, $spec, $keys_new = array()) {
+ if (!$this->tableExists($table)) {
+ throw new DatabaseSchemaObjectDoesNotExistException(t("Cannot add field %table.%field: table doesn't exist.", array('%field' => $field, '%table' => $table)));
+ }
+ if ($this->fieldExists($table, $field)) {
+ throw new DatabaseSchemaObjectExistsException(t("Cannot add field %table.%field: field already exists.", array('%field' => $field, '%table' => $table)));
+ }
+
+ $fixnull = FALSE;
+ if (!empty($spec['not null']) && !isset($spec['default'])) {
+ $fixnull = TRUE;
+ $spec['not null'] = FALSE;
+ }
+ $query = 'ALTER TABLE {' . $table . '} ADD ';
+ $query .= $this->createFieldSql($field, $this->processField($spec));
+ if ($keys_sql = $this->createKeysSql($keys_new)) {
+ $query .= ', ADD ' . implode(', ADD ', $keys_sql);
+ }
+ $this->connection->query($query);
+ if (isset($spec['initial'])) {
+ $this->connection->update($table)
+ ->fields(array($field => $spec['initial']))
+ ->execute();
+ }
+ if ($fixnull) {
+ $spec['not null'] = TRUE;
+ $this->changeField($table, $field, $field, $spec);
+ }
+ }
+
+ public function dropField($table, $field) {
+ if (!$this->fieldExists($table, $field)) {
+ return FALSE;
+ }
+
+ $this->connection->query('ALTER TABLE {' . $table . '} DROP `' . $field . '`');
+ return TRUE;
+ }
+
+ public function fieldSetDefault($table, $field, $default) {
+ if (!$this->fieldExists($table, $field)) {
+ throw new DatabaseSchemaObjectDoesNotExistException(t("Cannot set default value of field %table.%field: field doesn't exist.", array('%table' => $table, '%field' => $field)));
+ }
+
+ if (!isset($default)) {
+ $default = 'NULL';
+ }
+ else {
+ $default = is_string($default) ? "'$default'" : $default;
+ }
+
+ $this->connection->query('ALTER TABLE {' . $table . '} ALTER COLUMN `' . $field . '` SET DEFAULT ' . $default);
+ }
+
+ public function fieldSetNoDefault($table, $field) {
+ if (!$this->fieldExists($table, $field)) {
+ throw new DatabaseSchemaObjectDoesNotExistException(t("Cannot remove default value of field %table.%field: field doesn't exist.", array('%table' => $table, '%field' => $field)));
+ }
+
+ $this->connection->query('ALTER TABLE {' . $table . '} ALTER COLUMN `' . $field . '` DROP DEFAULT');
+ }
+
+ public function indexExists($table, $name) {
+ // Returns one row for each column in the index. Result is string or FALSE.
+ // Details at http://dev.mysql.com/doc/refman/5.0/en/show-index.html
+ $row = $this->connection->query('SHOW INDEX FROM {' . $table . "} WHERE key_name = '$name'")->fetchAssoc();
+ return isset($row['Key_name']);
+ }
+
+ public function addPrimaryKey($table, $fields) {
+ if (!$this->tableExists($table)) {
+ throw new DatabaseSchemaObjectDoesNotExistException(t("Cannot add primary key to table %table: table doesn't exist.", array('%table' => $table)));
+ }
+ if ($this->indexExists($table, 'PRIMARY')) {
+ throw new DatabaseSchemaObjectExistsException(t("Cannot add primary key to table %table: primary key already exists.", array('%table' => $table)));
+ }
+
+ $this->connection->query('ALTER TABLE {' . $table . '} ADD PRIMARY KEY (' . $this->createKeySql($fields) . ')');
+ }
+
+ public function dropPrimaryKey($table) {
+ if (!$this->indexExists($table, 'PRIMARY')) {
+ return FALSE;
+ }
+
+ $this->connection->query('ALTER TABLE {' . $table . '} DROP PRIMARY KEY');
+ return TRUE;
+ }
+
+ public function addUniqueKey($table, $name, $fields) {
+ if (!$this->tableExists($table)) {
+ throw new DatabaseSchemaObjectDoesNotExistException(t("Cannot add unique key %name to table %table: table doesn't exist.", array('%table' => $table, '%name' => $name)));
+ }
+ if ($this->indexExists($table, $name)) {
+ throw new DatabaseSchemaObjectExistsException(t("Cannot add unique key %name to table %table: unique key already exists.", array('%table' => $table, '%name' => $name)));
+ }
+
+ $this->connection->query('ALTER TABLE {' . $table . '} ADD UNIQUE KEY `' . $name . '` (' . $this->createKeySql($fields) . ')');
+ }
+
+ public function dropUniqueKey($table, $name) {
+ if (!$this->indexExists($table, $name)) {
+ return FALSE;
+ }
+
+ $this->connection->query('ALTER TABLE {' . $table . '} DROP KEY `' . $name . '`');
+ return TRUE;
+ }
+
+ public function addIndex($table, $name, $fields) {
+ if (!$this->tableExists($table)) {
+ throw new DatabaseSchemaObjectDoesNotExistException(t("Cannot add index %name to table %table: table doesn't exist.", array('%table' => $table, '%name' => $name)));
+ }
+ if ($this->indexExists($table, $name)) {
+ throw new DatabaseSchemaObjectExistsException(t("Cannot add index %name to table %table: index already exists.", array('%table' => $table, '%name' => $name)));
+ }
+
+ $this->connection->query('ALTER TABLE {' . $table . '} ADD INDEX `' . $name . '` (' . $this->createKeySql($fields) . ')');
+ }
+
+ public function dropIndex($table, $name) {
+ if (!$this->indexExists($table, $name)) {
+ return FALSE;
+ }
+
+ $this->connection->query('ALTER TABLE {' . $table . '} DROP INDEX `' . $name . '`');
+ return TRUE;
+ }
+
+ public function changeField($table, $field, $field_new, $spec, $keys_new = array()) {
+ if (!$this->fieldExists($table, $field)) {
+ throw new DatabaseSchemaObjectDoesNotExistException(t("Cannot change the definition of field %table.%name: field doesn't exist.", array('%table' => $table, '%name' => $field)));
+ }
+ if (($field != $field_new) && $this->fieldExists($table, $field_new)) {
+ throw new DatabaseSchemaObjectExistsException(t("Cannot rename field %table.%name to %name_new: target field already exists.", array('%table' => $table, '%name' => $field, '%name_new' => $field_new)));
+ }
+
+ $sql = 'ALTER TABLE {' . $table . '} CHANGE `' . $field . '` ' . $this->createFieldSql($field_new, $this->processField($spec));
+ if ($keys_sql = $this->createKeysSql($keys_new)) {
+ $sql .= ', ADD ' . implode(', ADD ', $keys_sql);
+ }
+ $this->connection->query($sql);
+ }
+
+ public function prepareComment($comment, $length = NULL) {
+ // Work around a bug in some versions of PDO, see http://bugs.php.net/bug.php?id=41125
+ $comment = str_replace("'", '’', $comment);
+
+ // Truncate comment to maximum comment length.
+ if (isset($length)) {
+ // Add table prefixes before truncating.
+ $comment = truncate_utf8($this->connection->prefixTables($comment), $length, TRUE, TRUE);
+ }
+
+ return $this->connection->quote($comment);
+ }
+
+ /**
+ * Retrieve a table or column comment.
+ */
+ public function getComment($table, $column = NULL) {
+ $condition = $this->buildTableNameCondition($table);
+ if (isset($column)) {
+ $condition->condition('column_name', $column);
+ $condition->compile($this->connection, $this);
+ // Don't use {} around information_schema.columns table.
+ return $this->connection->query("SELECT column_comment FROM information_schema.columns WHERE " . (string) $condition, $condition->arguments())->fetchField();
+ }
+ $condition->compile($this->connection, $this);
+ // Don't use {} around information_schema.tables table.
+ $comment = $this->connection->query("SELECT table_comment FROM information_schema.tables WHERE " . (string) $condition, $condition->arguments())->fetchField();
+ // Work-around for MySQL 5.0 bug http://bugs.mysql.com/bug.php?id=11379
+ return preg_replace('/; InnoDB free:.*$/', '', $comment);
+ }
+
+ public function tableExists($table) {
+ // The information_schema table is very slow to query under MySQL 5.0.
+ // Instead, we try to select from the table in question. If it fails,
+ // the most likely reason is that it does not exist. That is dramatically
+ // faster than using information_schema.
+ // @link http://bugs.mysql.com/bug.php?id=19588
+ // @todo: This override should be removed once we require a version of MySQL
+ // that has that bug fixed.
+ try {
+ $this->connection->queryRange("SELECT 1 FROM {" . $table . "}", 0, 1);
+ return TRUE;
+ }
+ catch (Exception $e) {
+ return FALSE;
+ }
+ }
+
+ public function fieldExists($table, $column) {
+ // The information_schema table is very slow to query under MySQL 5.0.
+ // Instead, we try to select from the table and field in question. If it
+ // fails, the most likely reason is that it does not exist. That is
+ // dramatically faster than using information_schema.
+ // @link http://bugs.mysql.com/bug.php?id=19588
+ // @todo: This override should be removed once we require a version of MySQL
+ // that has that bug fixed.
+ try {
+ $this->connection->queryRange("SELECT $column FROM {" . $table . "}", 0, 1);
+ return TRUE;
+ }
+ catch (Exception $e) {
+ return FALSE;
+ }
+ }
+
+}
+
+/**
+ * @} End of "addtogroup schemaapi".
+ */