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<?php |
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namespace Helix\DB\SQL; |
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trait CastTrait { |
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use AbstractTrait; |
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/** |
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* `COALESCE($this, ...$values)` |
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* |
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* @param scalar[] $values |
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* @return Value |
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*/ |
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public function coalesce (array $values) { |
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array_unshift($values, $this); |
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$values = $this->db->quoteList($values); |
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return Value::factory($this->db, "COALESCE({$values})"); |
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} |
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/** |
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* `CONV($this,$from,$to)` |
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* |
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* @param int $from |
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* @param int $to |
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* @return Text |
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*/ |
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public function toBase (int $from, int $to) { |
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return Text::factory($this->db, "CONV({$this},{$from},{$to})"); |
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} |
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/** |
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* `CONV($this,$from,10)` |
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* |
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* @param int $from |
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* @return Num |
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*/ |
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public function toBase10 (int $from) { |
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return Num::factory($this->db, "CONV({$this},{$from},10)"); |
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} |
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/** |
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* `CONV($this,$from,16)` |
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* |
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* This is similar to {@link TextTrait::hex()} except you can specify the starting base. |
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* |
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* @param int $from |
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* @return Text |
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*/ |
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public function toBase16 (int $from) { |
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return $this->toBase($from, 16); |
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} |
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/** |
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* `CONV($this,$from,2)` |
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* |
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* @param int $from |
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* @return Text |
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*/ |
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public function toBase2 (int $from) { |
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return $this->toBase($from, 2); |
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} |
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/** |
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* `CONV($this,$from,8)` |
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* |
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* @param int $from |
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* @return Text |
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*/ |
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public function toBase8 (int $from) { |
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return $this->toBase($from, 8); |
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} |
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/** |
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* Casts the expression to a floating point number. |
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* |
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* @return Num |
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*/ |
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public function toFloat () { |
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if ($this->db->isSQLite()) { |
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return Num::factory($this->db, "CAST({$this} AS REAL)"); |
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} |
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return Num::factory($this->db, "({$this} + 0)"); |
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} |
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/** |
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* Casts the expression to a signed integer. |
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* |
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* @return Num |
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*/ |
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public function toInt () { |
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if ($this->db->isSQLite()) { |
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return Num::factory($this->db, "CAST({$this} AS INTEGER)"); |
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} |
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return Num::factory($this->db, "CAST({$this} AS SIGNED)"); |
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} |
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/** |
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* Casts the expression to a character string. |
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* |
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* @return Text |
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*/ |
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public function toText () { |
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if ($this->db->isSQLite()) { |
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return Text::factory($this->db, "CAST({$this} AS TEXT)"); |
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} |
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return Text::factory($this->db, "CAST({$this} AS CHAR)"); |
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} |
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} |
hfw /
db
