top-think /
framework
| Total Complexity | 46 |
| Total Lines | 270 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like Conversion often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Conversion, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 25 | trait Conversion |
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| 26 | { |
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| 27 | /** |
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| 28 | * 数据输出显示的属性 |
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| 29 | * @var array |
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| 30 | */ |
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| 31 | protected $visible = []; |
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| 32 | |||
| 33 | /** |
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| 34 | * 数据输出隐藏的属性 |
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| 35 | * @var array |
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| 36 | */ |
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| 37 | protected $hidden = []; |
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| 38 | |||
| 39 | /** |
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| 40 | * 数据输出需要追加的属性 |
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| 41 | * @var array |
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| 42 | */ |
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| 43 | protected $append = []; |
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| 44 | |||
| 45 | /** |
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| 46 | * 数据集对象名 |
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| 47 | * @var string |
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| 48 | */ |
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| 49 | protected $resultSetType; |
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| 50 | |||
| 51 | /** |
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| 52 | * 设置需要附加的输出属性 |
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| 53 | * @access public |
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| 54 | * @param array $append 属性列表 |
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| 55 | * @return $this |
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| 56 | */ |
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| 57 | public function append(array $append = []) |
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| 58 | { |
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| 59 | $this->append = $append; |
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| 60 | |||
| 61 | return $this; |
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| 62 | } |
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| 63 | |||
| 64 | /** |
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| 65 | * 设置附加关联对象的属性 |
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| 66 | * @access public |
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| 67 | * @param string $attr 关联属性 |
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| 68 | * @param string|array $append 追加属性名 |
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| 69 | * @return $this |
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| 70 | * @throws Exception |
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| 71 | */ |
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| 72 | public function appendRelationAttr(string $attr, array $append) |
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| 73 | { |
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| 74 | $relation = App::parseName($attr, 1, false); |
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| 75 | |||
| 76 | if (isset($this->relation[$relation])) { |
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| 77 | $model = $this->relation[$relation]; |
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| 78 | } else { |
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| 79 | $model = $this->getRelationData($this->$relation()); |
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| 80 | } |
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| 81 | |||
| 82 | if ($model instanceof Model) { |
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| 83 | foreach ($append as $key => $attr) { |
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| 84 | $key = is_numeric($key) ? $attr : $key; |
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| 85 | if (isset($this->data[$key])) { |
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| 86 | throw new Exception('bind attr has exists:' . $key); |
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| 87 | } else { |
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| 88 | $this->data[$key] = $model->$attr; |
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| 89 | } |
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| 90 | } |
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| 91 | } |
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| 92 | |||
| 93 | return $this; |
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| 94 | } |
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| 95 | |||
| 96 | /** |
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| 97 | * 设置需要隐藏的输出属性 |
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| 98 | * @access public |
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| 99 | * @param array $hidden 属性列表 |
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| 100 | * @return $this |
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| 101 | */ |
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| 102 | public function hidden(array $hidden = []) |
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| 107 | } |
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| 108 | |||
| 109 | /** |
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| 110 | * 设置需要输出的属性 |
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| 111 | * @access public |
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| 112 | * @param array $visible |
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| 113 | * @return $this |
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| 114 | */ |
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| 115 | public function visible(array $visible = []) |
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| 120 | } |
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| 121 | |||
| 122 | /** |
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| 123 | * 转换当前模型对象为数组 |
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| 124 | * @access public |
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| 125 | * @return array |
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| 126 | */ |
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| 127 | public function toArray(): array |
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| 128 | { |
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| 129 | $item = []; |
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| 130 | $hasVisible = false; |
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| 131 | |||
| 132 | foreach ($this->visible as $key => $val) { |
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| 133 | if (is_string($val)) { |
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| 134 | if (strpos($val, '.')) { |
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| 135 | list($relation, $name) = explode('.', $val); |
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| 136 | $this->visible[$relation][] = $name; |
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| 137 | } else { |
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| 138 | $this->visible[$val] = true; |
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| 139 | $hasVisible = true; |
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| 140 | } |
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| 141 | unset($this->visible[$key]); |
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| 142 | } |
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| 143 | } |
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| 144 | |||
| 145 | foreach ($this->hidden as $key => $val) { |
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| 146 | if (is_string($val)) { |
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| 147 | if (strpos($val, '.')) { |
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| 148 | list($relation, $name) = explode('.', $val); |
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| 149 | $this->hidden[$relation][] = $name; |
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| 150 | } else { |
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| 151 | $this->hidden[$val] = true; |
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| 152 | } |
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| 153 | unset($this->hidden[$key]); |
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| 154 | } |
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| 155 | } |
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| 156 | |||
| 157 | // 合并关联数据 |
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| 158 | $data = array_merge($this->data, $this->relation); |
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| 159 | |||
| 160 | foreach ($data as $key => $val) { |
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| 161 | if ($val instanceof Model || $val instanceof ModelCollection) { |
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| 162 | // 关联模型对象 |
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| 163 | if (isset($this->visible[$key])) { |
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| 164 | $val->visible($this->visible[$key]); |
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| 165 | } elseif (isset($this->hidden[$key])) { |
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| 166 | $val->hidden($this->hidden[$key]); |
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| 167 | } |
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| 168 | // 关联模型对象 |
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| 169 | $item[$key] = $val->toArray(); |
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| 170 | } elseif (isset($this->visible[$key])) { |
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| 171 | $item[$key] = $this->getAttr($key); |
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| 172 | } elseif (!isset($this->hidden[$key]) && !$hasVisible) { |
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| 173 | $item[$key] = $this->getAttr($key); |
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| 174 | } |
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| 175 | } |
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| 176 | |||
| 177 | // 追加属性（必须定义获取器） |
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| 178 | foreach ($this->append as $key => $name) { |
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| 179 | $this->appendAttrToArray($item, $key, $name); |
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| 180 | } |
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| 181 | |||
| 182 | return $item; |
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| 183 | } |
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| 184 | |||
| 185 | protected function appendAttrToArray(array &$item, $key, $name) |
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| 186 | { |
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| 187 | if (is_array($name)) { |
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| 188 | // 追加关联对象属性 |
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| 189 | $relation = $this->getRelation($key); |
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| 190 | |||
| 191 | if (!$relation) { |
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| 192 | $relation = $this->getAttr($key); |
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| 193 | $relation->visible($name); |
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| 194 | } |
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| 195 | |||
| 196 | $item[$key] = $relation->append($name)->toArray(); |
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| 197 | } elseif (strpos($name, '.')) { |
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| 198 | list($key, $attr) = explode('.', $name); |
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| 199 | // 追加关联对象属性 |
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| 200 | $relation = $this->getRelation($key); |
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| 201 | |||
| 202 | if (!$relation) { |
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| 203 | $relation = $this->getAttr($key); |
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| 204 | $relation->visible([$attr]); |
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| 205 | } |
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| 206 | |||
| 207 | $item[$key] = $relation->append([$attr])->toArray(); |
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| 208 | } else { |
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| 209 | $value = $this->getAttr($name); |
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| 210 | $item[$name] = $value; |
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| 211 | |||
| 212 | $this->getBindAttr($name, $value, $item); |
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| 213 | } |
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| 214 | } |
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| 215 | |||
| 216 | protected function getBindAttr(string $name, $value, array &$item = []) |
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| 217 | { |
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| 218 | $relation = $this->isRelationAttr($name); |
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| 219 | if (!$relation) { |
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| 220 | return false; |
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| 221 | } |
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| 222 | |||
| 223 | $modelRelation = $this->$relation(); |
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| 224 | |||
| 225 | if ($modelRelation instanceof OneToOne) { |
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| 226 | $bindAttr = $modelRelation->getBindAttr(); |
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| 227 | |||
| 228 | if (!empty($bindAttr)) { |
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| 229 | unset($item[$name]); |
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| 230 | } |
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| 231 | |||
| 232 | foreach ($bindAttr as $key => $attr) { |
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| 233 | $key = is_numeric($key) ? $attr : $key; |
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| 234 | |||
| 235 | if (isset($item[$key])) { |
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| 236 | throw new Exception('bind attr has exists:' . $key); |
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| 237 | } |
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| 238 | |||
| 239 | $item[$key] = $value ? $value->getAttr($attr) : null; |
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| 240 | } |
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| 241 | } |
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| 242 | } |
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| 243 | |||
| 244 | /** |
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| 245 | * 转换当前模型对象为JSON字符串 |
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| 246 | * @access public |
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| 247 | * @param integer $options json参数 |
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| 248 | * @return string |
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| 249 | */ |
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| 250 | public function toJson(int $options = JSON_UNESCAPED_UNICODE): string |
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| 251 | { |
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| 252 | return json_encode($this->toArray(), $options); |
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| 253 | } |
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| 254 | |||
| 255 | /** |
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| 256 | * 移除当前模型的关联属性 |
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| 257 | * @access public |
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| 258 | * @return $this |
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| 259 | */ |
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| 260 | public function removeRelation() |
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| 261 | { |
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| 262 | $this->relation = []; |
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| 263 | return $this; |
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| 264 | } |
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| 265 | |||
| 266 | public function __toString() |
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| 269 | } |
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| 270 | |||
| 271 | // JsonSerializable |
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| 272 | public function jsonSerialize() |
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| 275 | } |
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| 276 | |||
| 277 | /** |
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| 278 | * 转换数据集为数据集对象 |
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| 279 | * @access public |
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| 280 | * @param array|Collection $collection 数据集 |
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| 281 | * @param string $resultSetType 数据集类 |
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| 282 | * @return Collection |
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| 283 | */ |
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| 284 | public function toCollection(iterable $collection, string $resultSetType = null): Collection |
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| 295 | } |
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| 296 | |||
| 297 | } |
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| 298 |
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