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<?php |
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namespace SimpleCrud\Queries\Mysql; |
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/** |
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* Trait with common functions used in queries. |
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* |
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* @property \SimpleCrud\Table $table |
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*/ |
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trait SelectionTrait |
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{ |
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protected $where = []; |
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protected $marks = []; |
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protected $limit; |
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protected $offset; |
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/** |
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* Adds new marks to the query. |
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* |
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* @param array $marks |
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* |
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* @return self |
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*/ |
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public function marks(array $marks) |
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{ |
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$this->marks += $marks; |
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return $this; |
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} |
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/** |
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* Adds a WHERE clause. |
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* |
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* @param string $where |
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* @param null|array $marks |
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* |
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* @return self |
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*/ |
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public function where($where, $marks = null) |
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{ |
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$this->where[] = $where; |
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if ($marks) { |
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$this->marks += $marks; |
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} |
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return $this; |
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} |
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/** |
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* Adds a OR WHERE clause. |
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* |
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* @param string $where |
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* @param null|array $marks |
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* |
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* @return self |
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*/ |
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public function orWhere($where, $marks = null) |
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{ |
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if (!isset($this->where['or'])) { |
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$this->where['or'] = [$where]; |
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} else { |
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$this->where['or'][] = $where; |
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} |
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if ($marks) { |
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$this->marks += $marks; |
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} |
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return $this; |
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} |
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/** |
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* Adds a WHERE field = :value clause. |
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* |
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* @param string $field |
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* @param null|int|array $value |
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* |
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* @return self |
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*/ |
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public function by($field, $value) |
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{ |
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if (is_array($value)) { |
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if (empty($value)) { |
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return $this->where("`{$this->table->name}`.`{$field}` IS NULL"); |
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} |
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return $this->where("`{$this->table->name}`.`{$field}` IN (:{$field})", [":{$field}" => $value]); |
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} |
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if ($value === null) { |
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return $this->where("`{$this->table->name}`.`{$field}` IS NULL"); |
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} |
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return $this->where("`{$this->table->name}`.`{$field}` = :{$field}", [":{$field}" => $value]); |
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} |
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/** |
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* Adds a WHERE id = :id clause. |
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* |
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* @param null|int|array $id |
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* |
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* @return self |
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*/ |
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public function byId($id) |
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{ |
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if ($this->limit === null) { |
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$this->limit(is_array($id) ? count($id) : 1); |
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} |
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return $this->by('id', $id); |
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} |
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/** |
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* Adds a LIMIT clause. |
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* |
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* @param int $limit |
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* |
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* @return self |
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*/ |
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public function limit($limit) |
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{ |
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$this->limit = $limit; |
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return $this; |
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} |
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/** |
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* Adds an offset to the LIMIT clause. |
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* |
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* @param int $offset |
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* |
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* @return self |
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*/ |
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public function offset($offset) |
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{ |
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$this->offset = $offset; |
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return $this; |
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} |
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/** |
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* Generate WHERE clause. |
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* |
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* @return string |
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*/ |
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protected function whereToString() |
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{ |
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if (!empty($this->where)) { |
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if (isset($this->where['or'])) { |
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$this->where['or'] = '('.implode(') OR (', $this->where['or']).')'; |
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} |
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return ' WHERE ('.implode(') AND (', $this->where).')'; |
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} |
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return ''; |
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} |
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/** |
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* Generate LIMIT clause. |
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* |
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* @return string |
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*/ |
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protected function limitToString() |
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{ |
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if (!empty($this->limit)) { |
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$query = ' LIMIT'; |
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if (!empty($this->offset)) { |
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$query .= ' '.$this->offset.','; |
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} |
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return $query.' '.$this->limit; |
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} |
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return ''; |
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} |
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} |
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oscarotero /
simple-crud
