top-think /
framework
| Total Complexity | 46 |
| Total Lines | 289 |
| 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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| 103 | { |
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| 104 | $this->hidden = $hidden; |
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| 105 | |||
| 106 | return $this; |
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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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| 116 | { |
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| 117 | $this->visible = $visible; |
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| 118 | |||
| 119 | return $this; |
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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 | $visible = []; |
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| 131 | $hidden = []; |
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| 132 | |||
| 133 | // 合并关联数据 |
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| 134 | $data = array_merge($this->data, $this->relation); |
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| 135 | |||
| 136 | // 过滤属性 |
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| 137 | if (!empty($this->visible)) { |
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| 138 | $array = $this->parseAttr($this->visible, $visible); |
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| 139 | if (!empty($array)) { |
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| 140 | $data = array_intersect_key($data, array_flip($array)); |
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| 141 | } |
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| 142 | } |
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| 143 | |||
| 144 | if (empty($array) && !empty($this->hidden)) { |
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| 145 | $array = $this->parseAttr($this->hidden, $hidden); |
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| 146 | $data = array_diff_key($data, array_flip($array)); |
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| 147 | } |
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| 148 | |||
| 149 | foreach ($data as $key => $val) { |
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| 150 | $item[$key] = $this->getArrayData($key, $val, $visible, $hidden); |
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| 151 | } |
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| 152 | |||
| 153 | // 追加属性（必须定义获取器） |
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| 154 | foreach ($this->append as $key => $name) { |
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| 155 | $this->appendAttrToArray($item, $key, $name); |
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| 156 | } |
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| 157 | |||
| 158 | return $item; |
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| 159 | } |
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| 160 | |||
| 161 | protected function appendAttrToArray(array &$item, $key, string $name) |
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| 162 | { |
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| 163 | if (is_array($name)) { |
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| 164 | // 追加关联对象属性 |
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| 165 | $relation = $this->getRelation($key); |
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| 166 | |||
| 167 | if (!$relation) { |
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| 168 | $relation = $this->getAttr($key); |
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| 169 | $relation->visible($name); |
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| 170 | } |
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| 171 | |||
| 172 | $item[$key] = $relation->append($name)->toArray(); |
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| 173 | } elseif (strpos($name, '.')) { |
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| 174 | list($key, $attr) = explode('.', $name); |
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| 175 | // 追加关联对象属性 |
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| 176 | $relation = $this->getRelation($key); |
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| 177 | |||
| 178 | if (!$relation) { |
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| 179 | $relation = $this->getAttr($key); |
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| 180 | $relation->visible([$attr]); |
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| 181 | } |
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| 182 | |||
| 183 | $item[$key] = $relation->append([$attr])->toArray(); |
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| 184 | } else { |
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| 185 | $value = $this->getAttr($name); |
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| 186 | $item[$name] = $value; |
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| 187 | |||
| 188 | $this->getBindAttr($name, $value, $item); |
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| 189 | } |
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| 190 | } |
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| 191 | |||
| 192 | protected function getBindAttr(string $name, $value, array &$item = []) |
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| 193 | { |
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| 194 | $relation = $this->isRelationAttr($name); |
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| 195 | if (!$relation) { |
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| 196 | return false; |
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| 197 | } |
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| 198 | |||
| 199 | $modelRelation = $this->$relation(); |
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| 200 | |||
| 201 | if ($modelRelation instanceof OneToOne) { |
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| 202 | $bindAttr = $modelRelation->getBindAttr(); |
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| 203 | |||
| 204 | if ($bindAttr) { |
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| 205 | unset($item[$name]); |
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| 206 | } |
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| 207 | |||
| 208 | foreach ($bindAttr as $key => $attr) { |
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| 209 | $key = is_numeric($key) ? $attr : $key; |
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| 210 | |||
| 211 | if (isset($item[$key])) { |
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| 212 | throw new Exception('bind attr has exists:' . $key); |
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| 213 | } |
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| 214 | |||
| 215 | $item[$key] = $value ? $value->getAttr($attr) : null; |
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| 216 | } |
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| 217 | } |
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| 218 | } |
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| 219 | |||
| 220 | protected function getArrayData(string $key, $val, array $visible, array $hidden) |
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| 221 | { |
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| 222 | if ($val instanceof Model || $val instanceof ModelCollection) { |
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| 223 | // 关联模型对象 |
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| 224 | if (isset($visible[$key])) { |
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| 225 | $val->visible($visible[$key]); |
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| 226 | } elseif (isset($hidden[$key])) { |
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| 227 | $val->hidden($hidden[$key]); |
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| 228 | } |
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| 229 | // 关联模型对象 |
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| 230 | return $val->toArray(); |
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| 231 | } |
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| 232 | |||
| 233 | // 模型属性 |
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| 234 | return $this->getAttr($key); |
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| 235 | } |
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| 236 | |||
| 237 | /** |
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| 238 | * 转换当前模型对象为JSON字符串 |
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| 239 | * @access public |
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| 240 | * @param integer $options json参数 |
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| 241 | * @return string |
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| 242 | */ |
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| 243 | public function toJson(int $options = JSON_UNESCAPED_UNICODE): string |
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| 244 | { |
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| 245 | return json_encode($this->toArray(), $options); |
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| 246 | } |
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| 247 | |||
| 248 | /** |
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| 249 | * 移除当前模型的关联属性 |
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| 250 | * @access public |
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| 251 | * @return $this |
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| 252 | */ |
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| 253 | public function removeRelation() |
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| 257 | } |
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| 258 | |||
| 259 | public function __toString() |
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| 262 | } |
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| 263 | |||
| 264 | // JsonSerializable |
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| 265 | public function jsonSerialize() |
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| 266 | { |
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| 267 | return $this->toArray(); |
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| 268 | } |
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| 269 | |||
| 270 | /** |
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| 271 | * 转换数据集为数据集对象 |
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| 272 | * @access public |
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| 273 | * @param array|Collection $collection 数据集 |
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| 274 | * @param string $resultSetType 数据集类 |
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| 275 | * @return Collection |
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| 276 | */ |
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| 277 | public function toCollection(iterable $collection, string $resultSetType = null): Collection |
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| 278 | { |
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| 279 | $resultSetType = $resultSetType ?: $this->resultSetType; |
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| 280 | |||
| 281 | if ($resultSetType && false !== strpos($resultSetType, '\\')) { |
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| 282 | $collection = new $resultSetType($collection); |
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| 283 | } else { |
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| 284 | $collection = new ModelCollection($collection); |
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| 285 | } |
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| 286 | |||
| 287 | return $collection; |
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| 288 | } |
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| 289 | |||
| 290 | /** |
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| 291 | * 解析隐藏及显示属性 |
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| 292 | * @access protected |
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| 293 | * @param array $attrs 属性 |
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| 294 | * @param array $result 结果集 |
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| 295 | * @return array |
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| 296 | */ |
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| 297 | protected function parseAttr(array $attrs, array &$result): array |
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| 314 | } |
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| 315 | } |
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| 316 |
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