| Total Complexity | 41 |
| Total Lines | 309 |
| Duplicated Lines | 0 % |
| Changes | 4 | ||
| Bugs | 0 | Features | 1 |
Complex classes like Entity 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 Entity, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 22 | final class Entity |
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| 23 | { |
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| 24 | /** @var OptionMap */ |
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| 25 | private $options; |
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| 26 | |||
| 27 | /** @var string */ |
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| 28 | private $role; |
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| 29 | |||
| 30 | /** @var string|null */ |
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| 31 | private $class; |
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| 32 | |||
| 33 | /** @var string|null */ |
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| 34 | private $mapper; |
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| 35 | |||
| 36 | /** @var string|null */ |
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| 37 | private $source; |
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| 38 | |||
| 39 | /** @var string|null */ |
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| 40 | private $constrain; |
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| 41 | |||
| 42 | /** @var string|null */ |
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| 43 | private $repository; |
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| 44 | |||
| 45 | /** @var FieldMap */ |
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| 46 | private $fields; |
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| 47 | |||
| 48 | /** @var RelationMap */ |
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| 49 | private $relations; |
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| 50 | |||
| 51 | /** @var array */ |
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| 52 | private $schema = []; |
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| 53 | |||
| 54 | /** @var FieldMap */ |
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| 55 | private $primaryKeyFields; |
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| 56 | |||
| 57 | /** |
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| 58 | * Entity constructor. |
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| 59 | */ |
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| 60 | public function __construct() |
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| 61 | { |
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| 62 | $this->options = new OptionMap(); |
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| 63 | $this->fields = new FieldMap(); |
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| 64 | $this->primaryKeyFields = new FieldMap(); |
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| 65 | $this->relations = new RelationMap(); |
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| 66 | } |
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| 67 | |||
| 68 | /** |
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| 69 | * Full entity copy. |
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| 70 | */ |
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| 71 | public function __clone() |
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| 77 | } |
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| 78 | |||
| 79 | /** |
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| 80 | * @return OptionMap |
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| 81 | */ |
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| 82 | public function getOptions(): OptionMap |
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| 83 | { |
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| 84 | return $this->options; |
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| 85 | } |
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| 86 | |||
| 87 | /** |
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| 88 | * @param string $role |
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| 89 | * @return Entity |
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| 90 | */ |
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| 91 | public function setRole(string $role): self |
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| 92 | { |
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| 93 | $this->role = $role; |
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| 94 | |||
| 95 | return $this; |
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| 96 | } |
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| 97 | |||
| 98 | /** |
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| 99 | * @return string|null |
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| 100 | */ |
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| 101 | public function getRole(): ?string |
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| 102 | { |
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| 103 | return $this->role; |
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| 104 | } |
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| 105 | |||
| 106 | /*** |
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| 107 | * @param string $class |
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| 108 | * @return Entity |
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| 109 | */ |
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| 110 | public function setClass(string $class): self |
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| 111 | { |
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| 112 | $this->class = $class; |
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| 113 | |||
| 114 | return $this; |
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| 115 | } |
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| 116 | |||
| 117 | /** |
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| 118 | * @return string|null |
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| 119 | */ |
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| 120 | public function getClass(): ?string |
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| 121 | { |
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| 122 | return $this->class; |
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| 123 | } |
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| 124 | |||
| 125 | /** |
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| 126 | * @param string|null $mapper |
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| 127 | * @return Entity |
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| 128 | */ |
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| 129 | public function setMapper(?string $mapper): self |
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| 130 | { |
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| 131 | $this->mapper = $mapper; |
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| 132 | |||
| 133 | return $this; |
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| 134 | } |
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| 135 | |||
| 136 | /** |
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| 137 | * @return string |
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| 138 | */ |
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| 139 | public function getMapper(): ?string |
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| 140 | { |
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| 141 | return $this->normalizeClass($this->mapper); |
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| 142 | } |
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| 143 | |||
| 144 | /** |
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| 145 | * @param string|null $source |
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| 146 | * @return Entity |
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| 147 | */ |
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| 148 | public function setSource(?string $source): self |
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| 149 | { |
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| 150 | $this->source = $source; |
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| 151 | |||
| 152 | return $this; |
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| 153 | } |
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| 154 | |||
| 155 | /** |
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| 156 | * @return string |
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| 157 | */ |
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| 158 | public function getSource(): ?string |
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| 159 | { |
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| 160 | return $this->normalizeClass($this->source); |
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| 161 | } |
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| 162 | |||
| 163 | /** |
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| 164 | * @param string|null $constrain |
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| 165 | * @return Entity |
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| 166 | */ |
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| 167 | public function setConstrain(?string $constrain): self |
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| 168 | { |
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| 169 | $this->constrain = $constrain; |
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| 170 | |||
| 171 | return $this; |
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| 172 | } |
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| 173 | |||
| 174 | /** |
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| 175 | * @return string|null |
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| 176 | */ |
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| 177 | public function getConstrain(): ?string |
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| 178 | { |
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| 179 | return $this->normalizeClass($this->constrain); |
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| 180 | } |
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| 181 | |||
| 182 | /** |
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| 183 | * @param string|null $repository |
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| 184 | * @return Entity |
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| 185 | */ |
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| 186 | public function setRepository(?string $repository): self |
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| 187 | { |
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| 188 | $this->repository = $repository; |
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| 189 | |||
| 190 | return $this; |
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| 191 | } |
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| 192 | |||
| 193 | /** |
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| 194 | * @return string |
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| 195 | */ |
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| 196 | public function getRepository(): ?string |
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| 197 | { |
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| 198 | return $this->normalizeClass($this->repository); |
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| 199 | } |
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| 200 | |||
| 201 | /** |
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| 202 | * @return FieldMap |
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| 203 | */ |
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| 204 | public function getFields(): FieldMap |
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| 205 | { |
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| 206 | return $this->fields; |
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| 207 | } |
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| 208 | |||
| 209 | /** |
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| 210 | * @return RelationMap |
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| 211 | */ |
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| 212 | public function getRelations(): RelationMap |
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| 213 | { |
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| 214 | return $this->relations; |
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| 215 | } |
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| 216 | |||
| 217 | /** |
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| 218 | * @param array $schema |
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| 219 | * @return Entity |
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| 220 | */ |
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| 221 | public function setSchema(array $schema): Entity |
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| 222 | { |
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| 223 | $this->schema = $schema; |
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| 224 | |||
| 225 | return $this; |
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| 226 | } |
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| 227 | |||
| 228 | /** |
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| 229 | * @return array |
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| 230 | */ |
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| 231 | public function getSchema(): array |
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| 232 | { |
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| 233 | return $this->schema; |
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| 234 | } |
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| 235 | |||
| 236 | /** |
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| 237 | * Merge entity relations and fields. |
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| 238 | * |
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| 239 | * @param Entity $entity |
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| 240 | */ |
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| 241 | public function merge(Entity $entity): void |
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| 242 | { |
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| 243 | foreach ($entity->getRelations() as $name => $relation) { |
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| 244 | if (!$this->relations->has($name)) { |
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| 245 | $this->relations->set($name, $relation); |
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| 246 | } |
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| 247 | } |
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| 248 | |||
| 249 | foreach ($entity->getFields() as $name => $field) { |
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| 250 | if (!$this->fields->has($name)) { |
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| 251 | $this->fields->set($name, $field); |
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| 252 | } |
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| 253 | } |
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| 254 | } |
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| 255 | |||
| 256 | /** |
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| 257 | * Check if entity has primary key |
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| 258 | */ |
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| 259 | public function hasPrimaryKey(): bool |
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| 260 | { |
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| 261 | if ($this->primaryKeyFields->count() > 0) { |
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| 262 | return true; |
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| 263 | } |
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| 264 | |||
| 265 | foreach ($this->getFields() as $field) { |
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| 266 | if ($field->isPrimary()) { |
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| 267 | return true; |
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| 268 | } |
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| 269 | } |
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| 270 | |||
| 271 | return false; |
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| 272 | } |
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| 273 | |||
| 274 | /** |
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| 275 | * Set primary key columns |
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| 276 | * Column names will be converted into property names |
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| 277 | */ |
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| 278 | public function setPrimaryKeys(array $columns): void |
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| 285 | } |
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| 286 | } |
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| 287 | |||
| 288 | /** |
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| 289 | * Get entity primary key property names |
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| 290 | * @return FieldMap |
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| 291 | */ |
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| 292 | public function getPrimaryFields(): FieldMap |
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| 293 | { |
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| 294 | $map = new FieldMap(); |
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| 295 | |||
| 296 | foreach ($this->getFields() as $name => $field) { |
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| 297 | if ($field->isPrimary()) { |
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| 298 | $map->set($name, $field); |
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| 299 | } |
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| 300 | } |
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| 301 | |||
| 302 | if ($this->primaryKeyFields->count() > 0 && $map->count() === 0) { |
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| 303 | return $this->primaryKeyFields; |
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| 304 | } |
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| 305 | |||
| 306 | if ($this->primaryKeyFields->count() === 0 && $map->count() > 0) { |
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| 307 | return $map; |
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| 308 | } |
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| 309 | |||
| 310 | if ( |
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| 311 | $this->primaryKeyFields->count() !== $map->count() |
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| 312 | || array_diff($map->getColumnNames(), $this->primaryKeyFields->getColumnNames()) != [] |
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| 313 | ) { |
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| 314 | throw new EntityException("Ambiguous primary key definition for `{$this->getRole()}`."); |
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| 315 | } |
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| 316 | |||
| 317 | return $this->primaryKeyFields; |
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| 318 | } |
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| 319 | |||
| 320 | /** |
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| 321 | * @param string|null $class |
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| 322 | * @return string|null |
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| 323 | */ |
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| 324 | private function normalizeClass(string $class = null): ?string |
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| 331 | } |
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| 332 | } |
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| 333 |