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<?php |
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// +---------------------------------------------------------------------- |
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// | ThinkPHP [ WE CAN DO IT JUST THINK ] |
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// +---------------------------------------------------------------------- |
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// | Copyright (c) 2006~2018 http://thinkphp.cn All rights reserved. |
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// +---------------------------------------------------------------------- |
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 ) |
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// +---------------------------------------------------------------------- |
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// | Author: liu21st <[email protected]> |
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// +---------------------------------------------------------------------- |
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namespace think\model\concern; |
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use think\Collection; |
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use think\Exception; |
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use think\Loader; |
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use think\Model; |
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use think\model\Collection as ModelCollection; |
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/** |
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* 模型数据转换处理 |
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*/ |
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trait Conversion |
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{ |
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/** |
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* 数据输出显示的属性 |
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* @var array |
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*/ |
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protected $visible = []; |
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/** |
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* 数据输出隐藏的属性 |
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* @var array |
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*/ |
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protected $hidden = []; |
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/** |
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* 数据输出需要追加的属性 |
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* @var array |
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*/ |
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protected $append = []; |
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/** |
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* 数据集对象名 |
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* @var string |
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*/ |
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protected $resultSetType; |
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/** |
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* 设置需要附加的输出属性 |
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* @access public |
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* @param array $append 属性列表 |
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* @param bool $override 是否覆盖 |
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* @return $this |
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*/ |
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public function append(array $append = [], $override = false) |
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{ |
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$this->append = $override ? $append : array_merge($this->append, $append); |
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return $this; |
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} |
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/** |
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* 设置附加关联对象的属性 |
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* @access public |
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* @param string $attr 关联属性 |
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* @param string|array $append 追加属性名 |
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* @return $this |
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* @throws Exception |
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*/ |
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public function appendRelationAttr($attr, $append) |
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{ |
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if (is_string($append)) { |
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$append = explode(',', $append); |
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} |
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$relation = Loader::parseName($attr, 1, false); |
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if (isset($this->relation[$relation])) { |
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$model = $this->relation[$relation]; |
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} else { |
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$model = $this->getRelationData($this->$relation()); |
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} |
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if ($model instanceof Model) { |
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foreach ($append as $key => $attr) { |
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$key = is_numeric($key) ? $attr : $key; |
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if (isset($this->data[$key])) { |
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throw new Exception('bind attr has exists:' . $key); |
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} else { |
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$this->data[$key] = $model->$attr; |
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} |
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} |
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} |
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return $this; |
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} |
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/** |
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* 设置需要隐藏的输出属性 |
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* @access public |
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* @param array $hidden 属性列表 |
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* @param bool $override 是否覆盖 |
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* @return $this |
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*/ |
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public function hidden(array $hidden = [], $override = false) |
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{ |
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$this->hidden = $override ? $hidden : array_merge($this->hidden, $hidden); |
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return $this; |
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} |
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/** |
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* 设置需要输出的属性 |
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* @access public |
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* @param array $visible |
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* @param bool $override 是否覆盖 |
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* @return $this |
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*/ |
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public function visible(array $visible = [], $override = false) |
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{ |
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$this->visible = $override ? $visible : array_merge($this->visible, $visible); |
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return $this; |
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} |
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/** |
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* 转换当前模型对象为数组 |
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* @access public |
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* @return array |
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*/ |
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public function toArray() |
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{ |
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$item = []; |
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$hasVisible = false; |
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foreach ($this->visible as $key => $val) { |
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if (is_string($val)) { |
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if (strpos($val, '.')) { |
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list($relation, $name) = explode('.', $val); |
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$this->visible[$relation][] = $name; |
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} else { |
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$this->visible[$val] = true; |
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$hasVisible = true; |
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} |
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unset($this->visible[$key]); |
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} |
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} |
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foreach ($this->hidden as $key => $val) { |
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if (is_string($val)) { |
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if (strpos($val, '.')) { |
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list($relation, $name) = explode('.', $val); |
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$this->hidden[$relation][] = $name; |
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} else { |
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$this->hidden[$val] = true; |
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} |
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unset($this->hidden[$key]); |
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} |
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} |
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// 合并关联数据 |
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$data = array_merge($this->data, $this->relation); |
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foreach ($data as $key => $val) { |
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if ($val instanceof Model || $val instanceof ModelCollection) { |
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// 关联模型对象 |
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if (isset($this->visible[$key])) { |
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$val->visible($this->visible[$key]); |
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} elseif (isset($this->hidden[$key]) && is_array($this->hidden[$key])) { |
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$val->hidden($this->hidden[$key]); |
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} |
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// 关联模型对象 |
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if (!isset($this->hidden[$key]) || true !== $this->hidden[$key]) { |
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$item[$key] = $val->toArray(); |
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} |
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} elseif (isset($this->visible[$key])) { |
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$item[$key] = $this->getAttr($key); |
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} elseif (!isset($this->hidden[$key]) && !$hasVisible) { |
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$item[$key] = $this->getAttr($key); |
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} |
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} |
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// 追加属性（必须定义获取器） |
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if (!empty($this->append)) { |
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foreach ($this->append as $key => $name) { |
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if (is_array($name)) { |
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// 追加关联对象属性 |
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$relation = $this->getRelation($key); |
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if (!$relation) { |
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$relation = $this->getAttr($key); |
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$relation->visible($name); |
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} |
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$item[$key] = $relation->append($name)->toArray(); |
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} elseif (strpos($name, '.')) { |
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list($key, $attr) = explode('.', $name); |
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// 追加关联对象属性 |
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$relation = $this->getRelation($key); |
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if (!$relation) { |
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$relation = $this->getAttr($key); |
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$relation->visible([$attr]); |
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} |
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$item[$key] = $relation->append([$attr])->toArray(); |
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} else { |
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$item[$name] = $this->getAttr($name, $item); |
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} |
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} |
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} |
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return $item; |
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} |
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/** |
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* 转换当前模型对象为JSON字符串 |
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* @access public |
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* @param integer $options json参数 |
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* @return string |
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*/ |
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public function toJson($options = JSON_UNESCAPED_UNICODE) |
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{ |
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return json_encode($this->toArray(), $options); |
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} |
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/** |
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* 移除当前模型的关联属性 |
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* @access public |
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* @return $this |
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*/ |
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public function removeRelation() |
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{ |
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$this->relation = []; |
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return $this; |
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} |
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public function __toString() |
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{ |
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return $this->toJson(); |
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} |
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// JsonSerializable |
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public function jsonSerialize() |
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{ |
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return $this->toArray(); |
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} |
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/** |
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* 转换数据集为数据集对象 |
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* @access public |
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* @param array|Collection $collection 数据集 |
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* @param string $resultSetType 数据集类 |
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* @return Collection |
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*/ |
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public function toCollection($collection, $resultSetType = null) |
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{ |
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$resultSetType = $resultSetType ?: $this->resultSetType; |
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if ($resultSetType && false !== strpos($resultSetType, '\\')) { |
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$collection = new $resultSetType($collection); |
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} else { |
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$collection = new ModelCollection($collection); |
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} |
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return $collection; |
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} |
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} |
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framework
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