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authorTorsten Grote <grote@kolabsys.com>2014-01-29 15:00:00 (GMT)
committerTorsten Grote <grote@kolabsys.com>2014-01-29 15:00:00 (GMT)
commitd9e4a0f1b5f45b2e3fed0908a69dad264d40b15b (patch)
tree76d774e7d2ce4ba7c0754c590a6b730b6f6ceed9 /kolab.org/www/drupal-7.26/includes/database/pgsql
parent5145fb6b6b03f545d7b82db89850dac1b3b49d78 (diff)
downloadkolab.org-www-d9e4a0f1b5f45b2e3fed0908a69dad264d40b15b.tar.gz
add new drupal version
Diffstat (limited to 'kolab.org/www/drupal-7.26/includes/database/pgsql')
-rw-r--r--kolab.org/www/drupal-7.26/includes/database/pgsql/database.inc223
-rw-r--r--kolab.org/www/drupal-7.26/includes/database/pgsql/install.inc197
-rw-r--r--kolab.org/www/drupal-7.26/includes/database/pgsql/query.inc210
-rw-r--r--kolab.org/www/drupal-7.26/includes/database/pgsql/schema.inc617
-rw-r--r--kolab.org/www/drupal-7.26/includes/database/pgsql/select.inc108
5 files changed, 1355 insertions, 0 deletions
diff --git a/kolab.org/www/drupal-7.26/includes/database/pgsql/database.inc b/kolab.org/www/drupal-7.26/includes/database/pgsql/database.inc
new file mode 100644
index 0000000..00ed799
--- /dev/null
+++ b/kolab.org/www/drupal-7.26/includes/database/pgsql/database.inc
@@ -0,0 +1,223 @@
+<?php
+
+/**
+ * @file
+ * Database interface code for PostgreSQL database servers.
+ */
+
+/**
+ * @addtogroup database
+ * @{
+ */
+
+/**
+ * The name by which to obtain a lock for retrive the next insert id.
+ */
+define('POSTGRESQL_NEXTID_LOCK', 1000);
+
+class DatabaseConnection_pgsql extends DatabaseConnection {
+
+ 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);
+
+ // Transactional DDL is always available in PostgreSQL,
+ // but we'll only enable it if standard transactions are.
+ $this->transactionalDDLSupport = $this->transactionSupport;
+
+ // Default to TCP connection on port 5432.
+ if (empty($connection_options['port'])) {
+ $connection_options['port'] = 5432;
+ }
+
+ // PostgreSQL in trust mode doesn't require a password to be supplied.
+ if (empty($connection_options['password'])) {
+ $connection_options['password'] = NULL;
+ }
+ // If the password contains a backslash it is treated as an escape character
+ // http://bugs.php.net/bug.php?id=53217
+ // so backslashes in the password need to be doubled up.
+ // The bug was reported against pdo_pgsql 1.0.2, backslashes in passwords
+ // will break on this doubling up when the bug is fixed, so check the version
+ //elseif (phpversion('pdo_pgsql') < 'version_this_was_fixed_in') {
+ else {
+ $connection_options['password'] = str_replace('\\', '\\\\', $connection_options['password']);
+ }
+
+ $this->connectionOptions = $connection_options;
+
+ $dsn = 'pgsql:host=' . $connection_options['host'] . ' dbname=' . $connection_options['database'] . ' port=' . $connection_options['port'];
+
+ // Allow PDO options to be overridden.
+ $connection_options += array(
+ 'pdo' => array(),
+ );
+ $connection_options['pdo'] += array(
+ // Prepared statements are most effective for performance when queries
+ // are recycled (used several times). However, if they are not re-used,
+ // prepared statements become ineffecient. Since most of Drupal's
+ // prepared queries are not re-used, it should be faster to emulate
+ // the preparation than to actually ready statements for re-use. If in
+ // doubt, reset to FALSE and measure performance.
+ PDO::ATTR_EMULATE_PREPARES => TRUE,
+ // Convert numeric values to strings when fetching.
+ PDO::ATTR_STRINGIFY_FETCHES => TRUE,
+ );
+ parent::__construct($dsn, $connection_options['username'], $connection_options['password'], $connection_options['pdo']);
+
+ // Force PostgreSQL to use the UTF-8 character set by default.
+ $this->exec("SET NAMES 'UTF8'");
+
+ // Execute PostgreSQL init_commands.
+ if (isset($connection_options['init_commands'])) {
+ $this->exec(implode('; ', $connection_options['init_commands']));
+ }
+ }
+
+ public function prepareQuery($query) {
+ // mapConditionOperator converts LIKE operations to ILIKE for consistency
+ // with MySQL. However, Postgres does not support ILIKE on bytea (blobs)
+ // fields.
+ // To make the ILIKE operator work, we type-cast bytea fields into text.
+ // @todo This workaround only affects bytea fields, but the involved field
+ // types involved in the query are unknown, so there is no way to
+ // conditionally execute this for affected queries only.
+ return parent::prepareQuery(preg_replace('/ ([^ ]+) +(I*LIKE|NOT +I*LIKE) /i', ' ${1}::text ${2} ', $query));
+ }
+
+ public function query($query, array $args = array(), $options = array()) {
+
+ $options += $this->defaultOptions();
+
+ // The PDO PostgreSQL driver has a bug which
+ // doesn't type cast booleans correctly when
+ // parameters are bound using associative
+ // arrays.
+ // See http://bugs.php.net/bug.php?id=48383
+ foreach ($args as &$value) {
+ if (is_bool($value)) {
+ $value = (int) $value;
+ }
+ }
+
+ try {
+ if ($query instanceof DatabaseStatementInterface) {
+ $stmt = $query;
+ $stmt->execute(NULL, $options);
+ }
+ else {
+ $this->expandArguments($query, $args);
+ $stmt = $this->prepareQuery($query);
+ $stmt->execute($args, $options);
+ }
+
+ switch ($options['return']) {
+ case Database::RETURN_STATEMENT:
+ return $stmt;
+ case Database::RETURN_AFFECTED:
+ return $stmt->rowCount();
+ case Database::RETURN_INSERT_ID:
+ return $this->lastInsertId($options['sequence_name']);
+ case Database::RETURN_NULL:
+ return;
+ default:
+ throw new PDOException('Invalid return directive: ' . $options['return']);
+ }
+ }
+ catch (PDOException $e) {
+ if ($options['throw_exception']) {
+ // Add additional debug information.
+ if ($query instanceof DatabaseStatementInterface) {
+ $e->query_string = $stmt->getQueryString();
+ }
+ else {
+ $e->query_string = $query;
+ }
+ $e->args = $args;
+ throw $e;
+ }
+ return NULL;
+ }
+ }
+
+ public function queryRange($query, $from, $count, array $args = array(), array $options = array()) {
+ return $this->query($query . ' LIMIT ' . (int) $count . ' OFFSET ' . (int) $from, $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 . '} AS SELECT', $query), $args, $options);
+ return $tablename;
+ }
+
+ public function driver() {
+ return 'pgsql';
+ }
+
+ public function databaseType() {
+ return 'pgsql';
+ }
+
+ public function mapConditionOperator($operator) {
+ static $specials;
+
+ // Function calls not allowed in static declarations, thus this method.
+ if (!isset($specials)) {
+ $specials = array(
+ // In PostgreSQL, 'LIKE' is case-sensitive. For case-insensitive LIKE
+ // statements, we need to use ILIKE instead.
+ 'LIKE' => array('operator' => 'ILIKE'),
+ 'NOT LIKE' => array('operator' => 'NOT ILIKE'),
+ );
+ }
+
+ return isset($specials[$operator]) ? $specials[$operator] : NULL;
+ }
+
+ /**
+ * Retrive a the next id in a sequence.
+ *
+ * PostgreSQL has built in sequences. We'll use these instead of inserting
+ * and updating a sequences table.
+ */
+ public function nextId($existing = 0) {
+
+ // Retrive the name of the sequence. This information cannot be cached
+ // because the prefix may change, for example, like it does in simpletests.
+ $sequence_name = $this->makeSequenceName('sequences', 'value');
+
+ // When PostgreSQL gets a value too small then it will lock the table,
+ // retry the INSERT and if it's still too small then alter the sequence.
+ $id = $this->query("SELECT nextval('" . $sequence_name . "')")->fetchField();
+ if ($id > $existing) {
+ return $id;
+ }
+
+ // PostgreSQL advisory locks are simply locks to be used by an
+ // application such as Drupal. This will prevent other Drupal proccesses
+ // from altering the sequence while we are.
+ $this->query("SELECT pg_advisory_lock(" . POSTGRESQL_NEXTID_LOCK . ")");
+
+ // While waiting to obtain the lock, the sequence may have been altered
+ // so lets try again to obtain an adequate value.
+ $id = $this->query("SELECT nextval('" . $sequence_name . "')")->fetchField();
+ if ($id > $existing) {
+ $this->query("SELECT pg_advisory_unlock(" . POSTGRESQL_NEXTID_LOCK . ")");
+ return $id;
+ }
+
+ // Reset the sequence to a higher value than the existing id.
+ $this->query("ALTER SEQUENCE " . $sequence_name . " RESTART WITH " . ($existing + 1));
+
+ // Retrive the next id. We know this will be as high as we want it.
+ $id = $this->query("SELECT nextval('" . $sequence_name . "')")->fetchField();
+
+ $this->query("SELECT pg_advisory_unlock(" . POSTGRESQL_NEXTID_LOCK . ")");
+
+ return $id;
+ }
+}
+
+/**
+ * @} End of "addtogroup database".
+ */
diff --git a/kolab.org/www/drupal-7.26/includes/database/pgsql/install.inc b/kolab.org/www/drupal-7.26/includes/database/pgsql/install.inc
new file mode 100644
index 0000000..c77f4ea
--- /dev/null
+++ b/kolab.org/www/drupal-7.26/includes/database/pgsql/install.inc
@@ -0,0 +1,197 @@
+<?php
+
+/**
+ * @file
+ * Install functions for PostgreSQL embedded database engine.
+ */
+
+
+// PostgreSQL specific install functions
+
+class DatabaseTasks_pgsql extends DatabaseTasks {
+ protected $pdoDriver = 'pgsql';
+
+ public function __construct() {
+ $this->tasks[] = array(
+ 'function' => 'checkEncoding',
+ 'arguments' => array(),
+ );
+ $this->tasks[] = array(
+ 'function' => 'checkPHPVersion',
+ 'arguments' => array(),
+ );
+ $this->tasks[] = array(
+ 'function' => 'checkBinaryOutput',
+ 'arguments' => array(),
+ );
+ $this->tasks[] = array(
+ 'function' => 'initializeDatabase',
+ 'arguments' => array(),
+ );
+ }
+
+ public function name() {
+ return st('PostgreSQL');
+ }
+
+ public function minimumVersion() {
+ return '8.3';
+ }
+
+ /**
+ * Check encoding is UTF8.
+ */
+ protected function checkEncoding() {
+ try {
+ if (db_query('SHOW server_encoding')->fetchField() == 'UTF8') {
+ $this->pass(st('Database is encoded in UTF-8'));
+ }
+ else {
+ $replacements = array(
+ '%encoding' => 'UTF8',
+ '%driver' => $this->name(),
+ '!link' => '<a href="INSTALL.pgsql.txt">INSTALL.pgsql.txt</a>'
+ );
+ $text = 'The %driver database must use %encoding encoding to work with Drupal.';
+ $text .= 'Recreate the database with %encoding encoding. See !link for more details.';
+ $this->fail(st($text, $replacements));
+ }
+ }
+ catch (Exception $e) {
+ $this->fail(st('Drupal could not determine the encoding of the database was set to UTF-8'));
+ }
+ }
+
+ /**
+ * Check PHP version.
+ *
+ * There are two bugs in PDO_pgsql affecting Drupal:
+ *
+ * - in versions < 5.2.7, PDO_pgsql refuses to insert an empty string into
+ * a NOT NULL BLOB column. See: http://bugs.php.net/bug.php?id=46249
+ * - in versions < 5.2.11 and < 5.3.1 that prevents inserting integer values
+ * into numeric columns that exceed the PHP_INT_MAX value.
+ * See: http://bugs.php.net/bug.php?id=48924
+ */
+ function checkPHPVersion() {
+ if (!version_compare(PHP_VERSION, '5.2.11', '>=') || (version_compare(PHP_VERSION, '5.3.0', '>=') && !version_compare(PHP_VERSION, '5.3.1', '>='))) {
+ $this->fail(st('The version of PHP you are using has known issues with PostgreSQL. You need to upgrade PHP to 5.2.11, 5.3.1 or greater.'));
+ };
+ }
+
+ /**
+ * Check Binary Output.
+ *
+ * Unserializing does not work on Postgresql 9 when bytea_output is 'hex'.
+ */
+ function checkBinaryOutput() {
+ // PostgreSQL < 9 doesn't support bytea_output, so verify we are running
+ // at least PostgreSQL 9.
+ $database_connection = Database::getConnection();
+ if (version_compare($database_connection->version(), '9') >= 0) {
+ if (!$this->checkBinaryOutputSuccess()) {
+ // First try to alter the database. If it fails, raise an error telling
+ // the user to do it themselves.
+ $connection_options = $database_connection->getConnectionOptions();
+ // It is safe to include the database name directly here, because this
+ // code is only called when a connection to the database is already
+ // established, thus the database name is guaranteed to be a correct
+ // value.
+ $query = "ALTER DATABASE \"" . $connection_options['database'] . "\" SET bytea_output = 'escape';";
+ try {
+ db_query($query);
+ }
+ catch (Exception $e) {
+ // Ignore possible errors when the user doesn't have the necessary
+ // privileges to ALTER the database.
+ }
+
+ // Close the database connection so that the configuration parameter
+ // is applied to the current connection.
+ db_close();
+
+ // Recheck, if it fails, finally just rely on the end user to do the
+ // right thing.
+ if (!$this->checkBinaryOutputSuccess()) {
+ $replacements = array(
+ '%setting' => 'bytea_output',
+ '%current_value' => 'hex',
+ '%needed_value' => 'escape',
+ '!query' => "<code>" . $query . "</code>",
+ );
+ $this->fail(st("The %setting setting is currently set to '%current_value', but needs to be '%needed_value'. Change this by running the following query: !query", $replacements));
+ }
+ }
+ }
+ }
+
+ /**
+ * Verify that a binary data roundtrip returns the original string.
+ */
+ protected function checkBinaryOutputSuccess() {
+ $bytea_output = db_query("SELECT 'encoding'::bytea AS output")->fetchField();
+ return ($bytea_output == 'encoding');
+ }
+
+ /**
+ * Make PostgreSQL Drupal friendly.
+ */
+ function initializeDatabase() {
+ // We create some functions using global names instead of prefixing them
+ // like we do with table names. This is so that we don't double up if more
+ // than one instance of Drupal is running on a single database. We therefore
+ // avoid trying to create them again in that case.
+
+ try {
+ // Create functions.
+ db_query('CREATE OR REPLACE FUNCTION "greatest"(numeric, numeric) RETURNS numeric AS
+ \'SELECT CASE WHEN (($1 > $2) OR ($2 IS NULL)) THEN $1 ELSE $2 END;\'
+ LANGUAGE \'sql\''
+ );
+ db_query('CREATE OR REPLACE FUNCTION "greatest"(numeric, numeric, numeric) RETURNS numeric AS
+ \'SELECT greatest($1, greatest($2, $3));\'
+ LANGUAGE \'sql\''
+ );
+ // Don't use {} around pg_proc table.
+ if (!db_query("SELECT COUNT(*) FROM pg_proc WHERE proname = 'rand'")->fetchField()) {
+ db_query('CREATE OR REPLACE FUNCTION "rand"() RETURNS float AS
+ \'SELECT random();\'
+ LANGUAGE \'sql\''
+ );
+ }
+
+ db_query('CREATE OR REPLACE FUNCTION "substring_index"(text, text, integer) RETURNS text AS
+ \'SELECT array_to_string((string_to_array($1, $2)) [1:$3], $2);\'
+ LANGUAGE \'sql\''
+ );
+
+ // Using || to concatenate in Drupal is not recommeneded because there are
+ // database drivers for Drupal that do not support the syntax, however
+ // they do support CONCAT(item1, item2) which we can replicate in
+ // PostgreSQL. PostgreSQL requires the function to be defined for each
+ // different argument variation the function can handle.
+ db_query('CREATE OR REPLACE FUNCTION "concat"(anynonarray, anynonarray) RETURNS text AS
+ \'SELECT CAST($1 AS text) || CAST($2 AS text);\'
+ LANGUAGE \'sql\'
+ ');
+ db_query('CREATE OR REPLACE FUNCTION "concat"(text, anynonarray) RETURNS text AS
+ \'SELECT $1 || CAST($2 AS text);\'
+ LANGUAGE \'sql\'
+ ');
+ db_query('CREATE OR REPLACE FUNCTION "concat"(anynonarray, text) RETURNS text AS
+ \'SELECT CAST($1 AS text) || $2;\'
+ LANGUAGE \'sql\'
+ ');
+ db_query('CREATE OR REPLACE FUNCTION "concat"(text, text) RETURNS text AS
+ \'SELECT $1 || $2;\'
+ LANGUAGE \'sql\'
+ ');
+
+ $this->pass(st('PostgreSQL has initialized itself.'));
+ }
+ catch (Exception $e) {
+ $this->fail(st('Drupal could not be correctly setup with the existing database. Revise any errors.'));
+ }
+ }
+}
+
diff --git a/kolab.org/www/drupal-7.26/includes/database/pgsql/query.inc b/kolab.org/www/drupal-7.26/includes/database/pgsql/query.inc
new file mode 100644
index 0000000..9902b16
--- /dev/null
+++ b/kolab.org/www/drupal-7.26/includes/database/pgsql/query.inc
@@ -0,0 +1,210 @@
+<?php
+
+/**
+ * @ingroup database
+ * @{
+ */
+
+/**
+ * @file
+ * Query code for PostgreSQL embedded database engine.
+ */
+
+
+class InsertQuery_pgsql extends InsertQuery {
+
+ public function execute() {
+ if (!$this->preExecute()) {
+ return NULL;
+ }
+
+ $stmt = $this->connection->prepareQuery((string) $this);
+
+ // Fetch the list of blobs and sequences used on that table.
+ $table_information = $this->connection->schema()->queryTableInformation($this->table);
+
+ $max_placeholder = 0;
+ $blobs = array();
+ $blob_count = 0;
+ foreach ($this->insertValues as $insert_values) {
+ foreach ($this->insertFields as $idx => $field) {
+ if (isset($table_information->blob_fields[$field])) {
+ $blobs[$blob_count] = fopen('php://memory', 'a');
+ fwrite($blobs[$blob_count], $insert_values[$idx]);
+ rewind($blobs[$blob_count]);
+
+ $stmt->bindParam(':db_insert_placeholder_' . $max_placeholder++, $blobs[$blob_count], PDO::PARAM_LOB);
+
+ // Pre-increment is faster in PHP than increment.
+ ++$blob_count;
+ }
+ else {
+ $stmt->bindParam(':db_insert_placeholder_' . $max_placeholder++, $insert_values[$idx]);
+ }
+ }
+ // Check if values for a serial field has been passed.
+ if (!empty($table_information->serial_fields)) {
+ foreach ($table_information->serial_fields as $index => $serial_field) {
+ $serial_key = array_search($serial_field, $this->insertFields);
+ if ($serial_key !== FALSE) {
+ $serial_value = $insert_values[$serial_key];
+
+ // Force $last_insert_id to the specified value. This is only done
+ // if $index is 0.
+ if ($index == 0) {
+ $last_insert_id = $serial_value;
+ }
+ // Set the sequence to the bigger value of either the passed
+ // value or the max value of the column. It can happen that another
+ // thread calls nextval() which could lead to a serial number being
+ // used twice. However, trying to insert a value into a serial
+ // column should only be done in very rare cases and is not thread
+ // safe by definition.
+ $this->connection->query("SELECT setval('" . $table_information->sequences[$index] . "', GREATEST(MAX(" . $serial_field . "), :serial_value)) FROM {" . $this->table . "}", array(':serial_value' => (int)$serial_value));
+ }
+ }
+ }
+ }
+ if (!empty($this->fromQuery)) {
+ // bindParam stores only a reference to the variable that is followed when
+ // the statement is executed. We pass $arguments[$key] instead of $value
+ // because the second argument to bindParam is passed by reference and
+ // the foreach statement assigns the element to the existing reference.
+ $arguments = $this->fromQuery->getArguments();
+ foreach ($arguments as $key => $value) {
+ $stmt->bindParam($key, $arguments[$key]);
+ }
+ }
+
+ // PostgreSQL requires the table name to be specified explicitly
+ // when requesting the last insert ID, so we pass that in via
+ // the options array.
+ $options = $this->queryOptions;
+
+ if (!empty($table_information->sequences)) {
+ $options['sequence_name'] = $table_information->sequences[0];
+ }
+ // If there are no sequences then we can't get a last insert id.
+ elseif ($options['return'] == Database::RETURN_INSERT_ID) {
+ $options['return'] = Database::RETURN_NULL;
+ }
+ // Only use the returned last_insert_id if it is not already set.
+ if (!empty($last_insert_id)) {
+ $this->connection->query($stmt, array(), $options);
+ }
+ else {
+ $last_insert_id = $this->connection->query($stmt, array(), $options);
+ }
+
+ // 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 UpdateQuery_pgsql extends UpdateQuery {
+ public function execute() {
+ $max_placeholder = 0;
+ $blobs = array();
+ $blob_count = 0;
+
+ // Because we filter $fields the same way here and in __toString(), the
+ // placeholders will all match up properly.
+ $stmt = $this->connection->prepareQuery((string) $this);
+
+ // Fetch the list of blobs and sequences used on that table.
+ $table_information = $this->connection->schema()->queryTableInformation($this->table);
+
+ // Expressions take priority over literal fields, so we process those first
+ // and remove any literal fields that conflict.
+ $fields = $this->fields;
+ $expression_fields = array();
+ foreach ($this->expressionFields as $field => $data) {
+ if (!empty($data['arguments'])) {
+ foreach ($data['arguments'] as $placeholder => $argument) {
+ // We assume that an expression will never happen on a BLOB field,
+ // which is a fairly safe assumption to make since in most cases
+ // it would be an invalid query anyway.
+ $stmt->bindParam($placeholder, $data['arguments'][$placeholder]);
+ }
+ }
+ unset($fields[$field]);
+ }
+
+ foreach ($fields as $field => $value) {
+ $placeholder = ':db_update_placeholder_' . ($max_placeholder++);
+
+ if (isset($table_information->blob_fields[$field])) {
+ $blobs[$blob_count] = fopen('php://memory', 'a');
+ fwrite($blobs[$blob_count], $value);
+ rewind($blobs[$blob_count]);
+ $stmt->bindParam($placeholder, $blobs[$blob_count], PDO::PARAM_LOB);
+ ++$blob_count;
+ }
+ else {
+ $stmt->bindParam($placeholder, $fields[$field]);
+ }
+ }
+
+ if (count($this->condition)) {
+ $this->condition->compile($this->connection, $this);
+
+ $arguments = $this->condition->arguments();
+ foreach ($arguments as $placeholder => $value) {
+ $stmt->bindParam($placeholder, $arguments[$placeholder]);
+ }
+ }
+
+ $options = $this->queryOptions;
+ $options['already_prepared'] = TRUE;
+ $this->connection->query($stmt, $options);
+
+ return $stmt->rowCount();
+ }
+}
diff --git a/kolab.org/www/drupal-7.26/includes/database/pgsql/schema.inc b/kolab.org/www/drupal-7.26/includes/database/pgsql/schema.inc
new file mode 100644
index 0000000..49adbf9
--- /dev/null
+++ b/kolab.org/www/drupal-7.26/includes/database/pgsql/schema.inc
@@ -0,0 +1,617 @@
+<?php
+
+/**
+ * @file
+ * Database schema code for PostgreSQL database servers.
+ */
+
+/**
+ * @ingroup schemaapi
+ * @{
+ */
+
+class DatabaseSchema_pgsql extends DatabaseSchema {
+
+ /**
+ * A cache of information about blob columns and sequences of tables.
+ *
+ * This is collected by DatabaseConnection_pgsql->queryTableInformation(),
+ * by introspecting the database.
+ *
+ * @see DatabaseConnection_pgsql->queryTableInformation()
+ * @var array
+ */
+ protected $tableInformation = array();
+
+ /**
+ * Fetch the list of blobs and sequences used on a table.
+ *
+ * We introspect the database to collect the information required by insert
+ * and update queries.
+ *
+ * @param $table_name
+ * The non-prefixed name of the table.
+ * @return
+ * An object with two member variables:
+ * - 'blob_fields' that lists all the blob fields in the table.
+ * - 'sequences' that lists the sequences used in that table.
+ */
+ public function queryTableInformation($table) {
+ // Generate a key to reference this table's information on.
+ $key = $this->connection->prefixTables('{' . $table . '}');
+ if (!strpos($key, '.')) {
+ $key = 'public.' . $key;
+ }
+
+ if (!isset($this->tableInformation[$key])) {
+ // Split the key into schema and table for querying.
+ list($schema, $table_name) = explode('.', $key);
+ $table_information = (object) array(
+ 'blob_fields' => array(),
+ 'sequences' => array(),
+ );
+ // Don't use {} around information_schema.columns table.
+ $result = $this->connection->query("SELECT column_name, data_type, column_default FROM information_schema.columns WHERE table_schema = :schema AND table_name = :table AND (data_type = 'bytea' OR (numeric_precision IS NOT NULL AND column_default LIKE :default))", array(
+ ':schema' => $schema,
+ ':table' => $table_name,
+ ':default' => '%nextval%',
+ ));
+ foreach ($result as $column) {
+ if ($column->data_type == 'bytea') {
+ $table_information->blob_fields[$column->column_name] = TRUE;
+ }
+ elseif (preg_match("/nextval\('([^']+)'/", $column->column_default, $matches)) {
+ // We must know of any sequences in the table structure to help us
+ // return the last insert id. If there is more than 1 sequences the
+ // first one (index 0 of the sequences array) will be used.
+ $table_information->sequences[] = $matches[1];
+ $table_information->serial_fields[] = $column->column_name;
+ }
+ }
+ $this->tableInformation[$key] = $table_information;
+ }
+ return $this->tableInformation[$key];
+ }
+
+ /**
+ * Fetch the list of CHECK constraints used on a field.
+ *
+ * We introspect the database to collect the information required by field
+ * alteration.
+ *
+ * @param $table
+ * The non-prefixed name of the table.
+ * @param $field
+ * The name of the field.
+ * @return
+ * An array of all the checks for the field.
+ */
+ public function queryFieldInformation($table, $field) {
+ $prefixInfo = $this->getPrefixInfo($table, TRUE);
+
+ // Split the key into schema and table for querying.
+ $schema = $prefixInfo['schema'];
+ $table_name = $prefixInfo['table'];
+
+ $field_information = (object) array(
+ 'checks' => array(),
+ );
+ $checks = $this->connection->query("SELECT conname FROM pg_class cl INNER JOIN pg_constraint co ON co.conrelid = cl.oid INNER JOIN pg_attribute attr ON attr.attrelid = cl.oid AND attr.attnum = ANY (co.conkey) INNER JOIN pg_namespace ns ON cl.relnamespace = ns.oid WHERE co.contype = 'c' AND ns.nspname = :schema AND cl.relname = :table AND attr.attname = :column", array(
+ ':schema' => $schema,
+ ':table' => $table_name,
+ ':column' => $field,
+ ));
+ $field_information = $checks->fetchCol();
+
+ return $field_information;
+ }
+
+ /**
+ * 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) {
+ $sql_fields = array();
+ foreach ($table['fields'] as $field_name => $field) {
+ $sql_fields[] = $this->createFieldSql($field_name, $this->processField($field));
+ }
+
+ $sql_keys = array();
+ if (isset($table['primary key']) && is_array($table['primary key'])) {
+ $sql_keys[] = 'PRIMARY KEY (' . implode(', ', $table['primary key']) . ')';
+ }
+ if (isset($table['unique keys']) && is_array($table['unique keys'])) {
+ foreach ($table['unique keys'] as $key_name => $key) {
+ $sql_keys[] = 'CONSTRAINT ' . $this->prefixNonTable($name, $key_name, 'key') . ' UNIQUE (' . implode(', ', $key) . ')';
+ }
+ }
+
+ $sql = "CREATE TABLE {" . $name . "} (\n\t";
+ $sql .= implode(",\n\t", $sql_fields);
+ if (count($sql_keys) > 0) {
+ $sql .= ",\n\t";
+ }
+ $sql .= implode(",\n\t", $sql_keys);
+ $sql .= "\n)";
+ $statements[] = $sql;
+
+ if (isset($table['indexes']) && is_array($table['indexes'])) {
+ foreach ($table['indexes'] as $key_name => $key) {
+ $statements[] = $this->_createIndexSql($name, $key_name, $key);
+ }
+ }
+
+ // Add table comment.
+ if (!empty($table['description'])) {
+ $statements[] = 'COMMENT ON TABLE {' . $name . '} IS ' . $this->prepareComment($table['description']);
+ }
+
+ // Add column comments.
+ foreach ($table['fields'] as $field_name => $field) {
+ if (!empty($field['description'])) {
+ $statements[] = 'COMMENT ON COLUMN {' . $name . '}.' . $field_name . ' IS ' . $this->prepareComment($field['description']);
+ }
+ }
+
+ return $statements;
+ }
+
+ /**
+ * 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 . ' ' . $spec['pgsql_type'];
+
+ if (isset($spec['type']) && $spec['type'] == 'serial') {
+ unset($spec['not null']);
+ }
+
+ if (in_array($spec['pgsql_type'], array('varchar', 'character', 'text')) && isset($spec['length'])) {
+ $sql .= '(' . $spec['length'] . ')';
+ }
+ elseif (isset($spec['precision']) && isset($spec['scale'])) {
+ $sql .= '(' . $spec['precision'] . ', ' . $spec['scale'] . ')';
+ }
+
+ if (!empty($spec['unsigned'])) {
+ $sql .= " CHECK ($name >= 0)";
+ }
+
+ if (isset($spec['not null'])) {
+ if ($spec['not null']) {
+ $sql .= ' NOT NULL';
+ }
+ else {
+ $sql .= ' NULL';
+ }
+ }
+ if (isset($spec['default'])) {
+ $default = is_string($spec['default']) ? "'" . $spec['default'] . "'" : $spec['default'];
+ $sql .= " default $default";
+ }
+
+ 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'])) {
+ $field['size'] = 'normal';
+ }
+
+ // Set the correct database-engine specific datatype.
+ // In case one is already provided, force it to lowercase.
+ if (isset($field['pgsql_type'])) {
+ $field['pgsql_type'] = drupal_strtolower($field['pgsql_type']);
+ }
+ else {
+ $map = $this->getFieldTypeMap();
+ $field['pgsql_type'] = $map[$field['type'] . ':' . $field['size']];
+ }
+
+ if (!empty($field['unsigned'])) {
+ // Unsigned datatypes are not supported in PostgreSQL 8.3. In MySQL,
+ // they are used to ensure a positive number is inserted and it also
+ // doubles the maximum integer size that can be stored in a field.
+ // The PostgreSQL schema in Drupal creates a check constraint
+ // to ensure that a value inserted is >= 0. To provide the extra
+ // integer capacity, here, we bump up the column field size.
+ if (!isset($map)) {
+ $map = $this->getFieldTypeMap();
+ }
+ switch ($field['pgsql_type']) {
+ case 'smallint':
+ $field['pgsql_type'] = $map['int:medium'];
+ break;
+ case 'int' :
+ $field['pgsql_type'] = $map['int:big'];
+ break;
+ }
+ }
+ if (isset($field['type']) && $field['type'] == 'serial') {
+ unset($field['not null']);
+ }
+ return $field;
+ }
+
+ /**
+ * This maps a generic data type in combination with its data size
+ * to the engine-specific data type.
+ */
+ 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' => 'character',
+
+ 'text:tiny' => 'text',
+ 'text:small' => 'text',
+ 'text:medium' => 'text',
+ 'text:big' => 'text',
+ 'text:normal' => 'text',
+
+ 'int:tiny' => 'smallint',
+ 'int:small' => 'smallint',
+ 'int:medium' => 'int',
+ 'int:big' => 'bigint',
+ 'int:normal' => 'int',
+
+ 'float:tiny' => 'real',
+ 'float:small' => 'real',
+ 'float:medium' => 'real',
+ 'float:big' => 'double precision',
+ 'float:normal' => 'real',
+
+ 'numeric:normal' => 'numeric',
+
+ 'blob:big' => 'bytea',
+ 'blob:normal' => 'bytea',
+
+ 'serial:tiny' => 'serial',
+ 'serial:small' => 'serial',
+ 'serial:medium' => 'serial',
+ 'serial:big' => 'bigserial',
+ 'serial:normal' => 'serial',
+ );
+ return $map;
+ }
+
+ protected function _createKeySql($fields) {
+ $return = array();
+ foreach ($fields as $field) {
+ if (is_array($field)) {
+ $return[] = 'substr(' . $field[0] . ', 1, ' . $field[1] . ')';
+ }
+ else {
+ $return[] = '"' . $field . '"';
+ }
+ }
+ return implode(', ', $return);
+ }
+
+ function renameTable($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)));
+ }
+
+ // Get the schema and tablename for the old table.
+ $old_full_name = $this->connection->prefixTables('{' . $table . '}');
+ list($old_schema, $old_table_name) = strpos($old_full_name, '.') ? explode('.', $old_full_name) : array('public', $old_full_name);
+
+ // Index names and constraint names are global in PostgreSQL, so we need to
+ // rename them when renaming the table.
+ $indexes = $this->connection->query('SELECT indexname FROM pg_indexes WHERE schemaname = :schema AND tablename = :table', array(':schema' => $old_schema, ':table' => $old_table_name));
+ foreach ($indexes as $index) {
+ if (preg_match('/^' . preg_quote($old_full_name) . '_(.*)$/', $index->indexname, $matches)) {
+ $index_name = $matches[1];
+ $this->connection->query('ALTER INDEX ' . $index->indexname . ' RENAME TO {' . $new_name . '}_' . $index_name);
+ }
+ }
+
+ // Now rename the table.
+ // Ensure the new table name does not include schema syntax.
+ $prefixInfo = $this->getPrefixInfo($new_name);
+ $this->connection->query('ALTER TABLE {' . $table . '} RENAME TO ' . $prefixInfo['table']);
+ }
+
+ public function dropTable($table) {
+ if (!$this->tableExists($table)) {
+ return FALSE;
+ }
+
+ $this->connection->query('DROP TABLE {' . $table . '}');
+ return TRUE;
+ }
+
+ public function addField($table, $field, $spec, $new_keys = array()) {
+ if (!$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 COLUMN ';
+ $query .= $this->createFieldSql($field, $this->processField($spec));
+ $this->connection->query($query);
+ if (isset($spec['initial'])) {
+ $this->connection->update($table)
+ ->fields(array($field => $spec['initial']))
+ ->execute();
+ }
+ if ($fixnull) {
+ $this->connection->query("ALTER TABLE {" . $table . "} ALTER $field SET NOT NULL");
+ }
+ if (isset($new_keys)) {
+ $this->_createKeys($table, $new_keys);
+ }
+ // Add column comment.
+ if (!empty($spec['description'])) {
+ $this->connection->query('COMMENT ON COLUMN {' . $table . '}.' . $field . ' IS ' . $this->prepareComment($spec['description']));
+ }
+ }
+
+ public function dropField($table, $field) {
+ if (!$this->fieldExists($table, $field)) {
+ return FALSE;
+ }
+
+ $this->connection->query('ALTER TABLE {' . $table . '} DROP COLUMN "' . $field . '"');
+ return TRUE;
+ }
+
+ public function fieldSetDefault($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) {
+ // Details http://www.postgresql.org/docs/8.3/interactive/view-pg-indexes.html
+ $index_name = '{' . $table . '}_' . $name . '_idx';
+ return (bool) $this->connection->query("SELECT 1 FROM pg_indexes WHERE indexname = '$index_name'")->fetchField();
+ }
+
+ /**
+ * Helper function: check if a constraint (PK, FK, UK) exists.
+ *
+ * @param $table
+ * The name of the table.
+ * @param $name
+ * The name of the constraint (typically 'pkey' or '[constraint]_key').
+ */
+ protected function constraintExists($table, $name) {
+ $constraint_name = '{' . $table . '}_' . $name;
+ return (bool) $this->connection->query("SELECT 1 FROM pg_constraint WHERE conname = '$constraint_name'")->fetchField();
+ }
+
+ 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->constraintExists($table, 'pkey')) {
+ 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 (' . implode(',', $fields) . ')');
+ }
+
+ public function dropPrimaryKey($table) {
+ if (!$this->constraintExists($table, 'pkey')) {
+ return FALSE;
+ }
+
+ $this->connection->query('ALTER TABLE {' . $table . '} DROP CONSTRAINT ' . $this->prefixNonTable($table, 'pkey'));
+ return TRUE;
+ }
+
+ 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->constraintExists($table, $name . '_key')) {
+ 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 CONSTRAINT "' . $this->prefixNonTable($table, $name, 'key') . '" UNIQUE (' . implode(',', $fields) . ')');
+ }
+
+ public function dropUniqueKey($table, $name) {
+ if (!$this->constraintExists($table, $name . '_key')) {
+ return FALSE;
+ }
+
+ $this->connection->query('ALTER TABLE {' . $table . '} DROP CONSTRAINT "' . $this->prefixNonTable($table, $name, 'key') . '"');
+ return TRUE;
+ }
+
+ public function addIndex($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)));
+ }
+
+ $this->connection->query($this->_createIndexSql($table, $name, $fields));
+ }
+
+ public function dropIndex($table, $name) {
+ if (!$this->indexExists($table, $name)) {
+ return FALSE;
+ }
+
+ $this->connection->query('DROP INDEX ' . $this->prefixNonTable($table, $name, 'idx'));
+ return TRUE;
+ }
+
+ public function changeField($table, $field, $field_new, $spec, $new_keys = array()) {
+ if (!$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)));
+ }
+
+ $spec = $this->processField($spec);
+
+ // We need to typecast the new column to best be able to transfer the data
+ // Schema_pgsql::getFieldTypeMap() will return possibilities that are not
+ // 'cast-able' such as 'serial' - so they need to be casted int instead.
+ if (in_array($spec['pgsql_type'], array('serial', 'bigserial', 'numeric'))) {
+ $typecast = 'int';
+ }
+ else {
+ $typecast = $spec['pgsql_type'];
+ }
+
+ if (in_array($spec['pgsql_type'], array('varchar', 'character', 'text')) && isset($spec['length'])) {
+ $typecast .= '(' . $spec['length'] . ')';
+ }
+ elseif (isset($spec['precision']) && isset($spec['scale'])) {
+ $typecast .= '(' . $spec['precision'] . ', ' . $spec['scale'] . ')';
+ }
+
+ // Remove old check constraints.
+ $field_info = $this->queryFieldInformation($table, $field);
+
+ foreach ($field_info as $check) {
+ $this->connection->query('ALTER TABLE {' . $table . '} DROP CONSTRAINT "' . $check . '"');
+ }
+
+ // Remove old default.
+ $this->fieldSetNoDefault($table, $field);
+
+ $this->connection->query('ALTER TABLE {' . $table . '} ALTER "' . $field . '" TYPE ' . $typecast . ' USING "' . $field . '"::' . $typecast);
+
+ if (isset($spec['not null'])) {
+ if ($spec['not null']) {
+ $nullaction = 'SET NOT NULL';
+ }
+ else {
+ $nullaction = 'DROP NOT NULL';
+ }
+ $this->connection->query('ALTER TABLE {' . $table . '} ALTER "' . $field . '" ' . $nullaction);
+ }
+
+ if (in_array($spec['pgsql_type'], array('serial', 'bigserial'))) {
+ // Type "serial" is known to PostgreSQL, but *only* during table creation,
+ // not when altering. Because of that, the sequence needs to be created
+ // and initialized by hand.
+ $seq = "{" . $table . "}_" . $field_new . "_seq";
+ $this->connection->query("CREATE SEQUENCE " . $seq);
+ // Set sequence to maximal field value to not conflict with existing
+ // entries.
+ $this->connection->query("SELECT setval('" . $seq . "', MAX(\"" . $field . '")) FROM {' . $table . "}");
+ $this->connection->query('ALTER TABLE {' . $table . '} ALTER "' . $field . '" SET DEFAULT nextval(\'' . $seq . '\')');
+ }
+
+ // Rename the column if necessary.
+ if ($field != $field_new) {
+ $this->connection->query('ALTER TABLE {' . $table . '} RENAME "' . $field . '" TO "' . $field_new . '"');
+ }
+
+ // Add unsigned check if necessary.
+ if (!empty($spec['unsigned'])) {
+ $this->connection->query('ALTER TABLE {' . $table . '} ADD CHECK ("' . $field_new . '" >= 0)');
+ }
+
+ // Add default if necessary.
+ if (isset($spec['default'])) {
+ $this->fieldSetDefault($table, $field_new, $spec['default']);
+ }
+
+ // Change description if necessary.
+ if (!empty($spec['description'])) {
+ $this->connection->query('COMMENT ON COLUMN {' . $table . '}."' . $field_new . '" IS ' . $this->prepareComment($spec['description']));
+ }
+
+ if (isset($new_keys)) {
+ $this->_createKeys($table, $new_keys);
+ }
+ }
+
+ protected function _createIndexSql($table, $name, $fields) {
+ $query = 'CREATE INDEX "' . $this->prefixNonTable($table, $name, 'idx') . '" ON {' . $table . '} (';
+ $query .= $this->_createKeySql($fields) . ')';
+ return $query;
+ }
+
+ protected function _createKeys($table, $new_keys) {
+ if (isset($new_keys['primary key'])) {
+ $this->addPrimaryKey($table, $new_keys['primary key']);
+ }
+ if (isset($new_keys['unique keys'])) {
+ foreach ($new_keys['unique keys'] as $name => $fields) {
+ $this->addUniqueKey($table, $name, $fields);
+ }
+ }
+ if (isset($new_keys['indexes'])) {
+ foreach ($new_keys['indexes'] as $name => $fields) {
+ $this->addIndex($table, $name, $fields);
+ }
+ }
+ }
+
+ /**
+ * Retrieve a table or column comment.
+ */
+ public function getComment($table, $column = NULL) {
+ $info = $this->getPrefixInfo($table);
+ // Don't use {} around pg_class, pg_attribute tables.
+ if (isset($column)) {
+ return $this->connection->query('SELECT col_description(oid, attnum) FROM pg_class, pg_attribute WHERE attrelid = oid AND relname = ? AND attname = ?', array($info['table'], $column))->fetchField();
+ }
+ else {
+ return $this->connection->query('SELECT obj_description(oid, ?) FROM pg_class WHERE relname = ?', array('pg_class', $info['table']))->fetchField();
+ }
+ }
+}
diff --git a/kolab.org/www/drupal-7.26/includes/database/pgsql/select.inc b/kolab.org/www/drupal-7.26/includes/database/pgsql/select.inc
new file mode 100644
index 0000000..f6a83db
--- /dev/null
+++ b/kolab.org/www/drupal-7.26/includes/database/pgsql/select.inc
@@ -0,0 +1,108 @@
+<?php
+
+/**
+ * @file
+ * Select builder for PostgreSQL database engine.
+ */
+
+/**
+ * @addtogroup database
+ * @{
+ */
+
+class SelectQuery_pgsql extends SelectQuery {
+
+ public function orderRandom() {
+ $alias = $this->addExpression('RANDOM()', 'random_field');
+ $this->orderBy($alias);
+ return $this;
+ }
+
+ /**
+ * Overrides SelectQuery::orderBy().
+ *
+ * PostgreSQL adheres strictly to the SQL-92 standard and requires that when
+ * using DISTINCT or GROUP BY conditions, fields and expressions that are
+ * ordered on also need to be selected. This is a best effort implementation
+ * to handle the cases that can be automated by adding the field if it is not
+ * yet selected.
+ *
+ * @code
+ * $query = db_select('node', 'n');
+ * $query->join('node_revision', 'nr', 'n.vid = nr.vid');
+ * $query
+ * ->distinct()
+ * ->fields('n')
+ * ->orderBy('timestamp');
+ * @endcode
+ *
+ * In this query, it is not possible (without relying on the schema) to know
+ * whether timestamp belongs to node_revisions and needs to be added or
+ * belongs to node and is already selected. Queries like this will need to be
+ * corrected in the original query by adding an explicit call to
+ * SelectQuery::addField() or SelectQuery::fields().
+ *
+ * Since this has a small performance impact, both by the additional
+ * processing in this function and in the database that needs to return the
+ * additional fields, this is done as an override instead of implementing it
+ * directly in SelectQuery::orderBy().
+ */
+ public function orderBy($field, $direction = 'ASC') {
+ // Call parent function to order on this.
+ $return = parent::orderBy($field, $direction);
+
+ // If there is a table alias specified, split it up.
+ if (strpos($field, '.') !== FALSE) {
+ list($table, $table_field) = explode('.', $field);
+ }
+ // Figure out if the field has already been added.
+ foreach ($this->fields as $existing_field) {
+ if (!empty($table)) {
+ // If table alias is given, check if field and table exists.
+ if ($existing_field['table'] == $table && $existing_field['field'] == $table_field) {
+ return $return;
+ }
+ }
+ else {
+ // If there is no table, simply check if the field exists as a field or
+ // an aliased field.
+ if ($existing_field['alias'] == $field) {
+ return $return;
+ }
+ }
+ }
+
+ // Also check expression aliases.
+ foreach ($this->expressions as $expression) {
+ if ($expression['alias'] == $field) {
+ return $return;
+ }
+ }
+
+ // If a table loads all fields, it can not be added again. It would
+ // result in an ambigious alias error because that field would be loaded
+ // twice: Once through table_alias.* and once directly. If the field
+ // actually belongs to a different table, it must be added manually.
+ foreach ($this->tables as $table) {
+ if (!empty($table['all_fields'])) {
+ return $return;
+ }
+ }
+
+ // If $field contains an characters which are not allowed in a field name
+ // it is considered an expression, these can't be handeld automatically
+ // either.
+ if ($this->connection->escapeField($field) != $field) {
+ return $return;
+ }
+
+ // This is a case that can be handled automatically, add the field.
+ $this->addField(NULL, $field);
+ return $return;
+ }
+}
+
+/**
+ * @} End of "addtogroup database".
+ */
+