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<?php |
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namespace suda\database\statement; |
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use Countable; |
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use IteratorAggregate; |
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use suda\database\Binder; |
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use suda\database\exception\SQLException; |
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/** |
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* Trait PrepareTrait |
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* @package suda\database\statement |
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*/ |
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trait PrepareTrait |
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{ |
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use WherePrepareTrait; |
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/** |
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* 准备选择列 |
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* |
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* @param string|array $reads |
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* @param string $table |
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* @return string |
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*/ |
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protected function prepareReadFields($reads, string $table = ''):string |
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{ |
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if (is_string($reads)) { |
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$fields = $reads; |
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} else { |
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$field = []; |
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$prefix = strlen($table) ?"`{$table}`." :''; |
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foreach ($reads as $want) { |
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$field[] = $prefix."`$want`"; |
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} |
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$fields = implode(',', $field); |
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} |
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return $fields; |
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} |
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/** |
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* 准备更新 |
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* |
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* @param array $data |
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* @return array |
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*/ |
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protected function prepareUpdateSet(array $data) |
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{ |
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$binders = []; |
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$sets = []; |
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foreach ($data as $name => $value) { |
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$_name = Binder::index($name); |
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$binders[] = new Binder($_name, $value, $name); |
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$sets[] = "`{$name}`=:{$_name}"; |
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} |
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return [implode(',', $sets), $binders]; |
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} |
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/** |
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* 合并绑定工具 |
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* |
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* @param Binder[] $binderArray |
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* @param array $parameter |
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* @return Binder[] |
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*/ |
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protected function mergeBinder(array $binderArray, array $parameter) |
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{ |
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foreach ($parameter as $key => $value) { |
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if (! ($value instanceof Binder)) { |
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$value = new Binder($key, $value); |
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} |
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if (!in_array($value, $binderArray)) { |
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$binderArray[] = $value; |
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} |
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} |
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return $binderArray; |
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} |
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} |
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dxkite /
suda
