ORM: GROUP BY automatique à vérifier avec des exemples plus complexes + gestion des fonctions d'aggrégation
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xdrm-brackets
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818fe15971
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@ -839,12 +839,33 @@
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/* [6] Clause GROUP BY
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=========================================================*/
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$nonAggregatedTables = [];
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foreach($this->select as $field=>$sel){
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/* (0) On initialise la liste des @rows non aggrégés */
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$notAggregatedRows = [];
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/* (1) On cherche dans les champs locaux local */
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foreach($this->select as $field=>$sel)
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if( is_null($sel[0]) )
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$notAggregatedRows[] = $this;
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/* (2) On cherche dans les champs des jointures */
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foreach($this->joined as $data)
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foreach($data['object']->select as $field=>$sel)
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if( is_null($sel[0]) )
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$notAggregatedRows[] = $data['object'];
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/* (3) Pour chaque table, on récupère les clés primaires */
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$groupBy = [];
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foreach($notAggregatedRows as $i=>$rows){
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$groupBy[$rows->schema['table']] = [];
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foreach($rows->schema['columns'] as $field=>$data)
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if( $data['primary'] )
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$groupBy[$rows->schema['table']][] = $field;
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}
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/* (4) On rédige la clause GROUP BY */
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$requestS['GROUPBY'] = SQLBuilder::GROUPBY($groupBy);
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/* [6] Clause LIMIT
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=========================================================*/
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@ -859,7 +880,6 @@
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/* (2) On compose la requête */
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$requestString = SQLBuilder::BUILD($requestS).';';
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var_dump($requestString);
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/* (3) On prépare la requête */
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$request = Database::getPDO()->prepare($requestString);
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@ -38,9 +38,42 @@
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if( !is_null($select[0]) )
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$fieldStr = substr($select[0], 2, -2)."($fieldStr)";
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/* (4) On ajoute l'alias */
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$sql[] = "$fieldStr as $field";
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/* (4) On ajoute l'alias */
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if( $field != '*' ) $sql[$c] = "$fieldStr as $field";
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else $sql[$c] = "$fieldStr";
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$c++;
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}
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return $sql;
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}
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/* CONSTRUIT LA REQUETE FORMATTEE "GROUP BY" AVEC UNE LISTE DE CHAMPS
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*
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* @tables<Array> Liste de champs : [table => fields]
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*
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* @return sql<Array> Renvoie un tableau formatté
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*
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*/
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public static function GROUPBY($tables){
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/* [0] Initialisation
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=========================================================*/
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$sql = [];
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/* [1] On construit la requête
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=========================================================*/
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$c = 0;
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foreach($tables as $table=>$fields)
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foreach($fields as $field){
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$sql[] = "$table.$field";
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$c++;
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}
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@ -266,7 +299,7 @@
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/* (1) Clause SELECT
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---------------------------------------------------------*/
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case 'SELECT':
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$sql = 'SELECT ';
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$sql .= 'SELECT ';
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$c = 0;
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foreach($statements as $field){
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@ -339,6 +372,20 @@
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}
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$sql .= "\n";
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break;
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/* (8) Clause GROUP BY
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---------------------------------------------------------*/
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case 'GROUPBY':
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$sql .= 'GROUP BY ';
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$c = 0;
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foreach($statements as $field){
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$sql .= ($c==0) ? $field : ", $field";
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$c++;
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}
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$sql .= "\n";
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break;
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}
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@ -450,11 +450,21 @@
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$selReq = Database::getPDO()->query("select m.*, max(h.timestamp) as last
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from history as h, machine as m
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where h.id_machine = m.id_machine
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group by h.id_machine");
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group by m.id_machine");
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$selected = Database::delNumeric( $selReq->fetchAll() );
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var_dump($selected);
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$mac = Table::get('machine')
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->select('*');
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$selected = Table::get('history')
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->join('id_machine', $mac)
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->select('timestamp', Rows::SEL_MAX);
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var_dump($selected->fetch());
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// $a = new ModuleRequest('authentificationDefault/warehouse', [
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// 'name' => 'test',
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@ -57,13 +57,14 @@
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/* (1) On récupère les données
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---------------------------------------------------------*/
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$selReq = Database::getPDO()->query("select m.*, max(h.timestamp) as last
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from history as h, machine as m
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where h.id_machine = m.id_machine
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group by h.id_machine");
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$selected = Database::delNumeric( $selReq->fetchAll() );
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$mac = Table::get('machine')
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->select('*');
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// $selected = Table::get('history');
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$selected = Table::get('history')
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->join('id_machine', $mac)
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->select('timestamp', Rows::SEL_MAX)
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->select('id_history', Rows::SEL_COUNT, Rows::SEL_DISTINCT)
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->fetch();
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echo "<article class='inline-row' style='border: 0; box-shadow: none;background: transparent;'>";
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@ -86,7 +87,7 @@
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echo "<span>";
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echo "<span>test conducteur(s)</span>";
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echo "<span>".$mac['id_history']." conducteur(s)</span>";
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echo "<span>test</span>";
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echo "</span>";
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