}
/**
- * Return the result wrapper.
+ * @return ResultWrapper The result wrapper.
*/
function getResult() {
return $this->mResult;
/**
* Extract some useful data from the result object for use by
* the navigation bar, put it into $this
+ *
+ * @param $offset String: index offset, inclusive
+ * @param $limit Integer: exact query limit
+ * @param $res ResultWrapper
*/
function extractResultInfo( $offset, $limit, ResultWrapper $res ) {
$numRows = $res->numRows();
if ( $numRows ) {
+ # Remove any table prefix from index field
+ $parts = explode( '.', $this->mIndexField );
+ $indexColumn = end( $parts );
+
$row = $res->fetchRow();
- $firstIndex = $row[$this->mIndexField];
+ $firstIndex = $row[$indexColumn];
# Discard the extra result row if there is one
if ( $numRows > $this->mLimit && $numRows > 1 ) {
$this->mPastTheEndIndex = $this->mPastTheEndRow->$indexField;
$res->seek( $numRows - 2 );
$row = $res->fetchRow();
- $lastIndex = $row[$this->mIndexField];
+ $lastIndex = $row[$indexColumn];
} else {
$this->mPastTheEndRow = null;
# Setting indexes to an empty string means that they will be
$this->mPastTheEndIndex = '';
$res->seek( $numRows - 1 );
$row = $res->fetchRow();
- $lastIndex = $row[$this->mIndexField];
+ $lastIndex = $row[$indexColumn];
}
} else {
$firstIndex = '';
/**
* Get some text to go in brackets in the "function name" part of the SQL comment
+ *
+ * @return String
*/
function getSqlComment() {
return get_class( $this );
* Do a query with specified parameters, rather than using the object
* context
*
- * @param string $offset Index offset, inclusive
- * @param integer $limit Exact query limit
- * @param boolean $descending Query direction, false for ascending, true for descending
+ * @param $offset String: index offset, inclusive
+ * @param $limit Integer: exact query limit
+ * @param $descending Boolean: query direction, false for ascending, true for descending
* @return ResultWrapper
*/
function reallyDoQuery( $offset, $limit, $descending ) {
/**
* Pre-process results; useful for performing batch existence checks, etc.
*
- * @param ResultWrapper $result Result wrapper
+ * @param $result ResultWrapper
*/
protected function preprocessResults( $result ) {}
/**
* Get the formatted result list. Calls getStartBody(), formatRow() and
* getEndBody(), concatenates the results and returns them.
+ *
+ * @return String
*/
function getBody() {
if ( !$this->mQueryDone ) {
/**
* Make a self-link
+ *
+ * @param $text String: text displayed on the link
+ * @param $query Array: associative array of paramter to be in the query string
+ * @param $type String: value of the "rel" attribute
+ * @return String: HTML fragment
*/
function makeLink($text, $query = null, $type=null) {
if ( $query === null ) {
/**
* Hook into getBody(), allows text to be inserted at the start. This
* will be called even if there are no rows in the result set.
+ *
+ * @return String
*/
function getStartBody() {
return '';
/**
* Hook into getBody() for the end of the list
+ *
+ * @return String
*/
function getEndBody() {
return '';
/**
* Hook into getBody(), for the bit between the start and the
* end when there are no rows
+ *
+ * @return String
*/
function getEmptyBody() {
return '';
/**
* Title used for self-links. Override this if you want to be able to
* use a title other than $wgTitle
+ *
+ * @return Title object
*/
function getTitle() {
return $GLOBALS['wgTitle'];
/**
* Get the current skin. This can be overridden if necessary.
+ *
+ * @return Skin object
*/
function getSkin() {
if ( !isset( $this->mSkin ) ) {
* Get an array of query parameters that should be put into self-links.
* By default, all parameters passed in the URL are used, except for a
* short blacklist.
+ *
+ * @return Associative array
*/
function getDefaultQuery() {
if ( !isset( $this->mDefaultQuery ) ) {
/**
* Get the number of rows in the result set
+ *
+ * @return Integer
*/
function getNumRows() {
if ( !$this->mQueryDone ) {
/**
* Get a URL query array for the prev, next, first and last links.
+ *
+ * @return Array
*/
function getPagingQueries() {
if ( !$this->mQueryDone ) {
);
}
+ /**
+ * Returns whether to show the "navigation bar"
+ *
+ * @return Boolean
+ */
function isNavigationBarShown() {
if ( !$this->mQueryDone ) {
$this->doQuery();
* will be used. If there is no such item, the unlinked text from
* $linkTexts will be used. Both $linkTexts and $disabledTexts are arrays
* of HTML.
+ *
+ * @return Array
*/
function getPagingLinks( $linkTexts, $disabledTexts = array() ) {
$queries = $this->getPagingQueries();
* Abstract formatting function. This should return an HTML string
* representing the result row $row. Rows will be concatenated and
* returned by getBody()
+ *
+ * @param $row Object: database row
+ * @return String
*/
abstract function formatRow( $row );
* conds => WHERE conditions
* options => option array
* join_conds => JOIN conditions
+ *
+ * @return Array
*/
abstract function getQueryInfo();
* $this->mDefaultDirection member variable. That's the default for this
* particular instantiation, which is a single value. This is the set of
* all defaults for the class.
+ *
+ * @return Boolean
*/
protected function getDefaultDirections() { return false; }
}
* enabling each one in getNavigationBar. The return type is an associa-
* tive array whose keys must exactly match the keys of the array returned
* by getIndexField(), and whose values are message keys.
- * @return array
+ *
+ * @return Array
*/
protected function getOrderTypeMessages() {
return null;
# Make table header
foreach ( $fields as $field => $name ) {
if ( strval( $name ) == '' ) {
- $s .= "<th> </th>\n";
+ $s .= "<th> </th>\n";
} elseif ( $this->isFieldSortable( $field ) ) {
$query = array( 'sort' => $field, 'limit' => $this->mLimit );
if ( $field == $this->mSort ) {
$value = isset( $row->$field ) ? $row->$field : null;
$formatted = strval( $this->formatValue( $field, $value ) );
if ( $formatted == '' ) {
- $formatted = ' ';
+ $formatted = ' ';
}
$s .= Xml::tags( 'td', $this->getCellAttrs( $field, $value ), $formatted );
}
/**
* Get a class name to be applied to the given row.
- * @param object $row The database result row
+ *
+ * @param $row Object: the database result row
+ * @return String
*/
function getRowClass( $row ) {
return '';
/**
* Get attributes to be applied to the given row.
- * @param object $row The database result row
- * @return associative array
+ *
+ * @param $row Object: the database result row
+ * @return Associative array
*/
function getRowAttrs( $row ) {
- return array( 'class' => $this->getRowClass( $row ) );
+ $class = $this->getRowClass( $row );
+ if ( $class === '' ) {
+ // Return an empty array to avoid clutter in HTML like class=""
+ return array();
+ } else {
+ return array( 'class' => $this->getRowClass( $row ) );
+ }
}
/**
* Get any extra attributes to be applied to the given cell. Don't
* take this as an excuse to hardcode styles; use classes and
* CSS instead. Row context is available in $this->mCurrentRow
+ *
* @param $field The column
* @param $value The cell contents
- * @return associative array
+ * @return Associative array
*/
function getCellAttrs( $field, $value ) {
return array( 'class' => 'TablePager_col_' . $field );
function getNavigationBar() {
global $wgStylePath, $wgContLang;
- if ( !$this->isNavigationBarShown() ) return '';
+ if ( !$this->isNavigationBarShown() ) {
+ return '';
+ }
$path = "$wgStylePath/common/images";
$labels = array(
/**
* Get a <select> element which has options for each of the allowed limits
+ *
+ * @return String: HTML fragment
*/
function getLimitSelect() {
global $wgLang;
- $s = "<select name=\"limit\">";
+
+ # Add the current limit from the query string
+ # to avoid that the limit is lost after clicking Go next time
+ if ( !in_array( $this->mLimit, $this->mLimitsShown ) ) {
+ $this->mLimitsShown[] = $this->mLimit;
+ sort( $this->mLimitsShown );
+ }
+ $s = Html::openElement( 'select', array( 'name' => 'limit' ) ) . "\n";
foreach ( $this->mLimitsShown as $key => $value ) {
# The pair is either $index => $limit, in which case the $value
# will be numeric, or $limit => $text, in which case the $value
$limit = $key;
$text = $value;
}
- $selected = ( $limit == $this->mLimit ? 'selected="selected"' : '' );
- $s .= "<option value=\"$limit\" $selected>$text</option>\n";
+ $s .= Xml::option( $text, $limit, $limit == $this->mLimit ) . "\n";
}
- $s .= "</select>";
+ $s .= Html::closeElement( 'select' );
return $s;
}
* Get <input type="hidden"> elements for use in a method="get" form.
* Resubmits all defined elements of the $_GET array, except for a
* blacklist, passed in the $blacklist parameter.
+ *
+ * @return String: HTML fragment
*/
function getHiddenFields( $blacklist = array() ) {
$blacklist = (array)$blacklist;
/**
* Get a form containing a limit selection dropdown
+ *
+ * @return String: HTML fragment
*/
function getLimitForm() {
global $wgScript;
+ return Xml::openElement(
+ 'form',
+ array(
+ 'method' => 'get',
+ 'action' => $wgScript
+ ) ) . "\n" . $this->getLimitDropdown() . "</form>\n";
+ }
+
+ /**
+ * Gets a limit selection dropdown
+ *
+ * @return string
+ */
+ function getLimitDropdown() {
# Make the select with some explanatory text
$msgSubmit = wfMsgHtml( 'table_pager_limit_submit' );
- return
- Xml::openElement(
- 'form',
- array(
- 'method' => 'get',
- 'action' => $wgScript
- )
- ) . "\n" .
- wfMsgHtml( 'table_pager_limit', $this->getLimitSelect() ) .
+
+ return wfMsgHtml( 'table_pager_limit', $this->getLimitSelect() ) .
"\n<input type=\"submit\" value=\"$msgSubmit\"/>\n" .
- $this->getHiddenFields( array( 'limit' ) ) .
- "</form>\n";
+ $this->getHiddenFields( array( 'limit' ) );
}
/**
* Return true if the named field should be sortable by the UI, false
* otherwise
*
- * @param string $field
+ * @param $field String
*/
abstract function isFieldSortable( $field );
/**
* Format a table cell. The return value should be HTML, but use an empty
- * string not for empty cells. Do not include the <td> and </td>.
+ * string not   for empty cells. Do not include the <td> and </td>.
*
* The current result row is available as $this->mCurrentRow, in case you
* need more context.
*
- * @param string $name The database field name
- * @param string $value The value retrieved from the database
+ * @param $name String: the database field name
+ * @param $value String: the value retrieved from the database
*/
abstract function formatValue( $name, $value );
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