/**
* This is a base class for all Query modules.
- * It provides some common functionality such as constructing various SQL queries.
+ * It provides some common functionality such as constructing various SQL
+ * queries.
*
* @ingroup API
*/
/**
* Add a set of tables to the internal array
- * @param mixed $tables Table name or array of table names
- * @param mixed $alias Table alias, or null for no alias. Cannot be used with multiple tables
+ * @param $tables mixed Table name or array of table names
+ * @param $alias mixed Table alias, or null for no alias. Cannot be
+ * used with multiple tables
*/
protected function addTables($tables, $alias = null) {
if (is_array($tables)) {
/**
* Get the SQL for a table name with alias
- * @param string $table Table name
- * @param string $alias Alias
+ * @param $table string Table name
+ * @param $alias string Alias
* @return string SQL
*/
protected function getAliasedName($table, $alias) {
/**
* Add a set of JOIN conditions to the internal array
*
- * JOIN conditions are formatted as array( tablename => array(jointype, conditions)
- * e.g. array('page' => array('LEFT JOIN', 'page_id=rev_page'))
- * @param array $join_conds JOIN conditions
+ * JOIN conditions are formatted as array( tablename => array(jointype,
+ * conditions) e.g. array('page' => array('LEFT JOIN',
+ * 'page_id=rev_page')) . conditions may be a string or an
+ * addWhere()-style array
+ * @param $join_conds array JOIN conditions
*/
protected function addJoinConds($join_conds) {
if(!is_array($join_conds))
/**
* Add a set of fields to select to the internal array
- * @param mixed $value Field name or array of field names
+ * @param $value mixed Field name or array of field names
*/
protected function addFields($value) {
if (is_array($value))
/**
* Same as addFields(), but add the fields only if a condition is met
- * @param mixed $value See addFields()
- * @param bool $condition If false, do nothing
+ * @param $value mixed See addFields()
+ * @param $condition bool If false, do nothing
* @return bool $condition
*/
protected function addFieldsIf($value, $condition) {
*
* For example, array('foo=bar', 'baz' => 3, 'bla' => 'foo') translates
* to "foo=bar AND baz='3' AND bla='foo'"
- * @param mixed $value String or array
+ * @param $value mixed String or array
*/
protected function addWhere($value) {
if (is_array($value)) {
/**
* Same as addWhere(), but add the WHERE clauses only if a condition is met
- * @param mixed $value See addWhere()
- * @param bool $condition If false, do nothing
+ * @param $value mixed See addWhere()
+ * @param $condition boolIf false, do nothing
* @return bool $condition
*/
protected function addWhereIf($value, $condition) {
/**
* Equivalent to addWhere(array($field => $value))
- * @param string $field Field name
- * @param string $value Value; ignored if null or empty array;
+ * @param $field string Field name
+ * @param $value string Value; ignored if null or empty array;
*/
protected function addWhereFld($field, $value) {
// Use count() to its full documented capabilities to simultaneously
/**
* Add a WHERE clause corresponding to a range, and an ORDER BY
* clause to sort in the right direction
- * @param string $field Field name
- * @param string $dir If 'newer', sort in ascending order, otherwise sort in descending order
- * @param string $start Value to start the list at. If $dir == 'newer' this is the lower boundary, otherwise it's the upper boundary
- * @param string $end Value to end the list at. If $dir == 'newer' this is the upper boundary, otherwise it's the lower boundary
+ * @param $field string Field name
+ * @param $dir string If 'newer', sort in ascending order, otherwise
+ * sort in descending order
+ * @param $start string Value to start the list at. If $dir == 'newer'
+ * this is the lower boundary, otherwise it's the upper boundary
+ * @param $end string Value to end the list at. If $dir == 'newer' this
+ * is the upper boundary, otherwise it's the lower boundary
+ * @param $sort bool If false, don't add an ORDER BY clause
*/
- protected function addWhereRange($field, $dir, $start, $end) {
+ protected function addWhereRange($field, $dir, $start, $end, $sort = true) {
$isDirNewer = ($dir === 'newer');
$after = ($isDirNewer ? '>=' : '<=');
$before = ($isDirNewer ? '<=' : '>=');
if (!is_null($end))
$this->addWhere($field . $before . $db->addQuotes($end));
- $order = $field . ($isDirNewer ? '' : ' DESC');
- if (!isset($this->options['ORDER BY']))
- $this->addOption('ORDER BY', $order);
- else
- $this->addOption('ORDER BY', $this->options['ORDER BY'] . ', ' . $order);
+ if ($sort) {
+ $order = $field . ($isDirNewer ? '' : ' DESC');
+ if (!isset($this->options['ORDER BY']))
+ $this->addOption('ORDER BY', $order);
+ else
+ $this->addOption('ORDER BY', $this->options['ORDER BY'] . ', ' . $order);
+ }
}
/**
- * Add an option such as LIMIT or USE INDEX
- * @param string $name Option name
- * @param string $value Option value
+ * Add an option such as LIMIT or USE INDEX. If an option was set
+ * before, the old value will be overwritten
+ * @param $name string Option name
+ * @param $value string Option value
*/
protected function addOption($name, $value = null) {
if (is_null($value))
/**
* Execute a SELECT query based on the values in the internal arrays
- * @param string $method Function the query should be attributed to. You should usually use __METHOD__ here
+ * @param $method string Function the query should be attributed to.
+ * You should usually use __METHOD__ here
* @return ResultWrapper
*/
protected function select($method) {
}
/**
- * Add information (title and namespace) about a Title object to a result array
- * @param array $arr Result array à la ApiResult
- * @param Title $title Title object
- * @param string $prefix Module prefix
+ * Add information (title and namespace) about a Title object to a
+ * result array
+ * @param $arr array Result array à la ApiResult
+ * @param $title Title
+ * @param $prefix string Module prefix
*/
public static function addTitleInfo(&$arr, $title, $prefix='') {
$arr[$prefix . 'ns'] = intval($title->getNamespace());
/**
* Override this method to request extra fields from the pageSet
* using $pageSet->requestField('fieldName')
- * @param ApiPageSet $pageSet
+ * @param $pageSet ApiPageSet
*/
public function requestExtraData($pageSet) {
}
/**
* Add a sub-element under the page element with the given page ID
- * @param int $pageId Page ID
- * @param array $data Data array à la ApiResult
+ * @param $pageId int Page ID
+ * @param $data array Data array à la ApiResult
+ * @return bool Whether the element fit in the result
*/
protected function addPageSubItems($pageId, $data) {
$result = $this->getResult();
$result->setIndexedTagName($data, $this->getModulePrefix());
- $result->addValue(array ('query', 'pages', intval($pageId)),
+ return $result->addValue(array('query', 'pages', intval($pageId)),
$this->getModuleName(),
$data);
}
+
+ /**
+ * Same as addPageSubItems(), but one element of $data at a time
+ * @param $pageId int Page ID
+ * @param $data array Data array à la ApiResult
+ * @param $elemname string XML element name. If null, getModuleName()
+ * is used
+ * @return bool Whether the element fit in the result
+ */
+ protected function addPageSubItem($pageId, $item, $elemname = null) {
+ if(is_null($elemname))
+ $elemname = $this->getModulePrefix();
+ $result = $this->getResult();
+ $fit = $result->addValue(array('query', 'pages', $pageId,
+ $this->getModuleName()), null, $item);
+ if(!$fit)
+ return false;
+ $result->setIndexedTagName_internal(array('query', 'pages', $pageId,
+ $this->getModuleName()), $elemname);
+ return true;
+ }
/**
* Set a query-continue value
- * @param $paramName Parameter name
- * @param $paramValue Parameter value
+ * @param $paramName string Parameter name
+ * @param $paramValue string Parameter value
*/
protected function setContinueEnumParameter($paramName, $paramValue) {
-
$paramName = $this->encodeParamName($paramName);
$msg = array( $paramName => $paramValue );
+ $this->getResult()->disableSizeCheck();
$this->getResult()->addValue('query-continue', $this->getModuleName(), $msg);
+ $this->getResult()->enableSizeCheck();
}
/**
- * Get the Query database connection (readonly)
+ * Get the Query database connection (read-only)
* @return Database
*/
protected function getDB() {
/**
* Selects the query database connection with the given name.
- * If no such connection has been requested before, it will be created.
- * Subsequent calls with the same $name will return the same connection
- * as the first, regardless of $db or $groups new values.
- * @param string $name Name to assign to the database connection
- * @param int $db One of the DB_* constants
- * @param array $groups Query groups
+ * See ApiQuery::getNamedDB() for more information
+ * @param $name string Name to assign to the database connection
+ * @param $db int One of the DB_* constants
+ * @param $groups array Query groups
* @return Database
*/
public function selectNamedDB($name, $db, $groups) {
/**
* Convert a title to a DB key
- * @param string $title Page title with spaces
+ * @param $title string Page title with spaces
* @return string Page title with underscores
*/
public function titleToKey($title) {
/**
* The inverse of titleToKey()
- * @param string $key Page title with underscores
+ * @param $key string Page title with underscores
* @return string Page title with spaces
*/
public function keyToTitle($key) {
/**
* An alternative to titleToKey() that doesn't trim trailing spaces
- * @param string $titlePart Title part with spaces
+ * @param $titlePart string Title part with spaces
* @return string Title part with underscores
*/
public function titlePartToKey($titlePart) {
/**
* An alternative to keyToTitle() that doesn't trim trailing spaces
- * @param string $keyPart Key part with spaces
+ * @param $keyPart string Key part with spaces
* @return string Key part with underscores
*/
public function keyPartToTitle($keyPart) {
* @return string
*/
public static function getBaseVersion() {
- return __CLASS__ . ': $Id: ApiQueryBase.php 44461 2008-12-11 19:11:11Z ialex $';
+ return __CLASS__ . ': $Id: ApiQueryBase.php 47450 2009-02-18 15:26:09Z catrope $';
}
}
/**
* Overrides base class to prepend 'g' to every generator parameter
+ * @param $paramNames string Parameter name
+ * @return string Prefixed parameter name
*/
public function encodeParamName($paramName) {
if ($this->mIsGenerator)
/**
* Execute this module as a generator
- * @param $resultPageSet PageSet: All output should be appended to this object
+ * @param $resultPageSet ApiPageSet: All output should be appended to
+ * this object
*/
public abstract function executeGenerator($resultPageSet);
}
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