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<?php |
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namespace core\database; |
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trait Querybuilder { |
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protected $req_beginning; |
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protected $select_champ = []; |
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protected $champs = []; |
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protected $value = []; |
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protected $champs_where = []; |
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protected $value_where = []; |
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protected $conditions = []; |
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protected $conditions_table = []; |
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protected $closure = []; |
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protected $table = []; |
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protected $values = []; |
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protected $order_by; |
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protected $group_by; |
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protected $limit; |
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abstract public function prepare($req, $value); |
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//-------------------------- QUERY BUILDER --------------------------------------------// |
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/** |
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* @param string $champs |
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* @return $this |
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* |
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* pour initialisé une requete avec un select |
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*/ |
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public function select($champs = "*") { |
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$this->req_beginning = "SELECT "; |
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$this->select_champ[] = $champs; |
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return $this; |
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} |
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/** |
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* @param $champ |
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* @param $value |
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* @return $this |
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* |
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* fonction qui permet de préparer les champs et la valeur qui y sera associée |
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*/ |
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public function insert($champ, $value) { |
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$this->add($champ, $value); |
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$this->req_beginning = "INSERT INTO "; |
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return $this; |
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} |
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/** |
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* @param $champ |
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* @param $value |
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* @return $this |
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*/ |
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public function update($champ, $value) { |
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$this->add($champ, $value); |
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$this->req_beginning = "UPDATE "; |
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return $this; |
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} |
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/** |
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* @return $this |
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* |
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* fonction qui initialise un delete en base de donnée |
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*/ |
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public function delete() { |
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$this->req_beginning = "DELETE FROM "; |
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return $this; |
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} |
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/** |
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* @param string $table |
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* @return $this |
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* |
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* pour initialiser la les listes des tables ou il faudra aler chercher les données |
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*/ |
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public function from($table) { |
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$this->table[] = $table; |
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return $this; |
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} |
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/** |
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* @param string $table |
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* |
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* pour initialiser la table dans laquelle on va insérer les données |
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*/ |
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public function into($table) { |
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$this->table[] = $table; |
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return $this; |
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} |
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/** |
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* @param $champ |
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* @param string $cond |
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* @param $champ_test |
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* @param string $closure |
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* @param bool $no_bind |
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* @return $this |
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* pour intialiser la ou les clauses where d'une requete |
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*/ |
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public function where($champ, $cond, $champ_test, $closure = "", $no_bind = false) { |
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$this->closure[] = $closure; |
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if ($no_bind === true) { |
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$this->conditions_table[] = $champ.$cond.$champ_test." ".$closure; |
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} |
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else { |
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$this->conditions[] = $cond; |
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$this->addWhere($champ, $champ_test); |
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} |
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return $this; |
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} |
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/** |
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* @param string $order |
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* @param string $type |
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*/ |
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public function orderBy($order, $type = null) { |
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if ($type === null) { |
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$type = "ASC"; |
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} |
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$this->order_by = " ORDER BY ".$order." ".$type." "; |
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return $this; |
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} |
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/** |
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* @param integer $debut |
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* @param integer $fin |
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*/ |
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public function limit($debut, $fin = "no") { |
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if ($fin == "no") { |
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$this->limit = " LIMIT ".$debut." "; |
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} |
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else { |
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$this->limit = " LIMIT ".$debut.", ".$fin." "; |
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} |
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return $this; |
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} |
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public function groupBy($name) { |
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$this->group_by = " GROUP BY ".$name." "; |
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return $this; |
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} |
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/** |
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* @return array |
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* |
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* fonction qui permet de récupérer un select fait sur une table |
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*/ |
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public function get() { |
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$values = []; |
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$requete = $this->req_beginning.implode(",", $this->select_champ)." FROM ".implode(",", $this->table); |
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if ((!empty($this->conditions)) || (!empty($this->conditions_table))) { |
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$requete .= $this->getWhereConditions()[0]; |
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$values = $this->getWhereConditions()[1]; |
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} |
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$requete .= $this->group_by; |
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$requete .= $this->order_by; |
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$requete .= $this->limit; |
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$this->unsetQueryBuilder(); |
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return $this->prepare($requete, $values); |
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} |
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/** |
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* fonction utlisée pour terminer un insert ou un update dans la base de données |
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*/ |
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public function set() { |
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$this->values = array_combine($this->champs, $this->value); |
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$datas = []; |
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$count = count($this->champs); |
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for ($i = 0; $i < $count; $i++) { |
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$datas[] = $this->champs[$i]."=:".$this->champs[$i]; |
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} |
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//si on a des conditions alors on sera dans un insert |
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$requete = $this->req_beginning.implode(",", $this->table)." SET ".implode(", ", $datas); |
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if ((!empty($this->conditions)) || (!empty($this->conditions_table))) { |
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$requete .= $this->getWhereConditions()[0]; |
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$this->setValues(); |
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} |
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$requete .= $this->limit; |
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$this->prepare($requete, $this->values); |
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$this->unsetQueryBuilder(); |
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} |
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/** |
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* fonction utilisée pour finir un delete |
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*/ |
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public function del() { |
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$requete = $this->req_beginning.implode(",", $this->table); |
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if (!empty($this->conditions)) { |
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$requete .= $this->getWhereConditions()[0]; |
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$this->setValues(); |
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} |
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$requete .= $this->order_by; |
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$requete .= $this->limit; |
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$this->prepare($requete, $this->values); |
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$this->unsetQueryBuilder(); |
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} |
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//-------------------------- PRIVATE FUNCTIONS --------------------------------------------// |
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/** |
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* @param $champ |
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* @param $value |
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* |
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* fonction qui se cahrge d'ajouter les valeurs et les champs si non null dans leurs |
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* tableaux respectifs (appellée dans this->insert et this->update |
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*/ |
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private function add($champ, $value) { |
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if (($champ !== null) && ($value !== null)) { |
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$this->champs[] = $champ; |
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$this->value[] = $value; |
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} |
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} |
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/** |
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* @param $champ |
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* @param $value |
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* |
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* fonction qui se cahrge d'ajouter les valeurs et les champs si non null dans leurs |
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* tableaux respectifs (appellée dans this->insert et this->update |
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*/ |
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private function addWhere($champ, $value) { |
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if (($champ !== null) && ($value !== null)) { |
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$this->champs_where[] = $champ; |
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$this->value_where[] = $value; |
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} |
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} |
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/** |
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* @return array |
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* crée les tableau et renvoi la clause where |
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*/ |
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private function getWhereConditions() { |
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$values = []; |
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$datas = []; |
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if ((!empty($this->conditions))) { |
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$values = array_combine(str_replace(".", "", $this->champs_where), $this->value_where); |
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$count = count($this->champs_where); |
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for ($i = 0; $i < $count; $i++) { |
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$datas[] = $this->champs_where[$i]." ".$this->conditions[$i]." :".str_replace(".", "", $this->champs_where[$i])." ".$this->closure[$i]." "; |
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} |
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} |
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if ((!empty($this->conditions_table))) { |
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foreach ($this->conditions_table as $cond) { |
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$datas[] = $cond; |
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} |
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} |
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return [" WHERE ".implode(" ", $datas), $values]; |
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} |
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/** |
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* function that set values for insert update and delete |
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*/ |
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private function setValues() { |
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$this->values = array_merge($this->values, $this->getWhereConditions()[1]); |
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} |
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/** |
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* fonction qui détruit toutes les variables utilisées. |
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*/ |
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private function unsetQueryBuilder() { |
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$this->req_beginning; |
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$this->select_champ = []; |
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$this->champs = []; |
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$this->value = []; |
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$this->values = []; |
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$this->champs_where = []; |
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$this->value_where = []; |
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$this->conditions = []; |
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$this->conditions_table = []; |
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$this->closure = []; |
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$this->table = []; |
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$this->order_by = ""; |
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$this->group_by = ""; |
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$this->limit = ""; |
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} |
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} |
Piou-piou /
ribs-framework
