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Basic search functionality included

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This commit is contained in:
Geoff Munn 2009-03-24 22:07:47 +00:00
parent 7c6c3166ee
commit 5b5f43f905
1 changed files with 18 additions and 85 deletions
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103
code/MSSQLDatabase.php
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@ -65,6 +65,7 @@ class MSSQLDatabase extends Database {
* Theoretically, you don't need to 'enable' it every time...
*
* TODO: make this a _config.php setting
* TODO: VERY IMPORTANT: move this so it only gets called upon a dev/build action
*/
function createFullTextCatalog(){
@ -470,7 +471,7 @@ class MSSQLDatabase extends Database {
}
protected function getIndexSqlDefinition($tableName, $indexName, $indexSpec) {
if(!is_array($indexSpec)){
$indexSpec=trim($indexSpec, '()');
$bits=explode(',', $indexSpec);
@ -542,10 +543,11 @@ class MSSQLDatabase extends Database {
*/
public function indexList($table) {
$indexes=DB::query("EXEC sp_helpindex '$table';");
$prefix = null;
$prefix = '';
foreach($indexes as $index) {
//Check for uniques:
if(strpos($index['index_description'], 'unique')!==false)
$prefix='unique ';
@ -810,7 +812,7 @@ class MSSQLDatabase extends Database {
* Returns the SQL command to get all the tables in this database
*/
function allTablesSQL(){
return "SELECT name FROM $this->database..sysobjects WHERE xtype = 'U';";
return "SELECT name FROM {$this->database}..sysobjects WHERE xtype = 'U';";
}
/**
@ -948,6 +950,8 @@ class MSSQLDatabase extends Database {
* The core search engine, used by this class and its subclasses to do fun stuff.
* Searches both SiteTree and File.
*
* TODO: This is a really basic search system, provided purely so we have something...
*
* @param string $keywords Keywords as a string.
*/
public function searchEngine($classesToSearch, $keywords, $pageLength = null, $sortBy = "Relevance DESC", $extraFilter = "", $booleanSearch = false, $alternativeFileFilter = "", $invertedMatch = false) {
@ -957,95 +961,24 @@ class MSSQLDatabase extends Database {
//Get a list of all the tables and columns we'll be searching on:
$tables=Array();
foreach($result as $row){
$tables[$row['TABLE_NAME']]=$row['FULLTEXT_COLUMN_NAME'];
if(substr($row['TABLE_NAME'], -5)!='_Live' && substr($row['TABLE_NAME'], -9)!='_versions')
$tables[]="SELECT ID, '{$row['TABLE_NAME']}' AS Source FROM \"{$row['TABLE_NAME']}\" WHERE CONTAINS(\"{$row['FULLTEXT_COLUMN_NAME']}\", N'$keywords')";
}
//We'll do a union query on all of these tables... it's easeier!
$query=implode(' UNION ', $tables);
$result=DB::query($query);
/*if(!$pageLength) $pageLength = $this->pageLength;
$fileFilter = '';
$keywords = Convert::raw2sql($keywords);
$htmlEntityKeywords = htmlentities($keywords);
$extraFilters = array('SiteTree' => '', 'File' => '');
if($booleanSearch) $boolean = "IN BOOLEAN MODE";
if($extraFilter) {
$extraFilters['SiteTree'] = " AND $extraFilter";
if($alternativeFileFilter) $extraFilters['File'] = " AND $alternativeFileFilter";
else $extraFilters['File'] = $extraFilters['SiteTree'];
}
if($this->showInSearchTurnOn) $extraFilters['SiteTree'] .= " AND showInSearch <> 0";
$start = isset($_GET['start']) ? (int)$_GET['start'] : 0;
$limit = $start . ", " . (int) $pageLength;
$notMatch = $invertedMatch ? "NOT " : "";
if($keywords) {
$match['SiteTree'] = "
MATCH (Title, MenuTitle, Content, MetaTitle, MetaDescription, MetaKeywords) AGAINST ('$keywords' $boolean)
+ MATCH (Content) AGAINST ('$htmlEntityKeywords' $boolean)
";
$match['File'] = "MATCH (Filename, Title, Content) AGAINST ('$keywords' $boolean) AND ClassName = 'File'";
// We make the relevance search by converting a boolean mode search into a normal one
$relevanceKeywords = str_replace(array('*','+','-'),'',$keywords);
$htmlEntityRelevanceKeywords = str_replace(array('*','+','-'),'',$htmlEntityKeywords);
$relevance['SiteTree'] = "MATCH (Title) AGAINST ('$relevanceKeywords') + MATCH(Content) AGAINST ('$htmlEntityRelevanceKeywords') + MATCH (Title, MenuTitle, Content, MetaTitle, MetaDescription, MetaKeywords) AGAINST ('$relevanceKeywords')";
$relevance['File'] = "MATCH (Filename, Title, Content) AGAINST ('$relevanceKeywords')";
} else {
$relevance['SiteTree'] = $relevance['File'] = 1;
$match['SiteTree'] = $match['File'] = "1 = 1";
}
// Generate initial queries and base table names
$baseClasses = array('SiteTree' => '', 'File' => '');
foreach($classesToSearch as $class) {
$queries[$class] = singleton($class)->extendedSQL($notMatch . $match[$class] . $extraFilters[$class], "");
$baseClasses[$class] = reset($queries[$class]->from);
$searchResults=new DataObjectSet();
foreach($result as $row){
$row_result=DataObject::get_by_id($row['Source'], $row['ID']);
$searchResults->push($row_result);
}
// Make column selection lists
$select = array(
'SiteTree' => array("ClassName","$baseClasses[SiteTree].ID","ParentID","Title","URLSegment","Content","LastEdited","Created","_utf8'' AS Filename", "_utf8'' AS Name", "$relevance[SiteTree] AS Relevance", "CanViewType"),
'File' => array("ClassName","$baseClasses[File].ID","_utf8'' AS ParentID","Title","_utf8'' AS URLSegment","Content","LastEdited","Created","Filename","Name","$relevance[File] AS Relevance","NULL AS CanViewType"),
);
$searchResults->setPageLimits($start, $pageLength, $totalCount);
// Process queries
foreach($classesToSearch as $class) {
// There's no need to do all that joining
$queries[$class]->from = array(str_replace('`','',$baseClasses[$class]) => $baseClasses[$class]);
$queries[$class]->select = $select[$class];
$queries[$class]->orderby = null;
}
// Combine queries
$querySQLs = array();
$totalCount = 0;
foreach($queries as $query) {
$querySQLs[] = $query->sql();
$totalCount += $query->unlimitedRowCount();
}
$fullQuery = implode(" UNION ", $querySQLs) . " ORDER BY $sortBy LIMIT $limit";
// Get records
echo 'full query: ' . $fullQuery . '<br>';
$records = DB::query($fullQuery);
foreach($records as $record)
$objects[] = new $record['ClassName']($record);
if(isset($objects)) $doSet = new DataObjectSet($objects);
else $doSet = new DataObjectSet();
$doSet->setPageLimits($start, $pageLength, $totalCount);
return $doSet;*/
return $searchResults;
}
}