Total Complexity | 48 |
Total Lines | 390 |
Duplicated Lines | 0 % |
Changes | 0 |
Complex classes like ORM 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 ORM, and based on these observations, apply Extract Interface, too.
1 | <?php |
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28 | final class ORM implements ORMInterface |
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29 | { |
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30 | /** @var CommandGenerator */ |
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31 | private $generator; |
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32 | |||
33 | /** @var FactoryInterface */ |
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34 | private $factory; |
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35 | |||
36 | /** @var PromiseFactoryInterface|null */ |
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37 | private $promiseFactory; |
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38 | |||
39 | /** @var HeapInterface */ |
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40 | private $heap; |
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41 | |||
42 | /** @var SchemaInterface|null */ |
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43 | private $schema; |
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44 | |||
45 | /** @var MapperInterface[] */ |
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46 | private $mappers = []; |
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47 | |||
48 | /** @var RepositoryInterface[] */ |
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49 | private $repositories = []; |
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50 | |||
51 | /** @var RelationMap[] */ |
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52 | private $relmaps = []; |
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53 | |||
54 | /** @var array */ |
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55 | private $indexes = []; |
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56 | |||
57 | /** @var SourceInterface[] */ |
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58 | private $sources = []; |
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59 | |||
60 | /** |
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61 | * @param FactoryInterface $factory |
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62 | * @param SchemaInterface|null $schema |
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63 | */ |
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64 | public function __construct(FactoryInterface $factory, SchemaInterface $schema = null) |
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65 | { |
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66 | $this->generator = new CommandGenerator(); |
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67 | $this->factory = $factory; |
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68 | $this->schema = $schema; |
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69 | |||
70 | $this->heap = new Heap(); |
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71 | } |
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72 | |||
73 | /** |
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74 | * Automatically resolve role based on object name or instance. |
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75 | * |
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76 | * @param string|object $entity |
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77 | * @return string |
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78 | */ |
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79 | public function resolveRole($entity): string |
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80 | { |
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81 | if (is_object($entity)) { |
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82 | $node = $this->getHeap()->get($entity); |
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83 | if (!is_null($node)) { |
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84 | return $node->getRole(); |
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85 | } |
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86 | |||
87 | $class = get_class($entity); |
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88 | if (!$this->schema->defines($class)) { |
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89 | throw new ORMException("Unable to resolve role of `$class`"); |
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90 | } |
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91 | |||
92 | $entity = $class; |
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93 | } |
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94 | |||
95 | return $this->schema->resolveAlias($entity); |
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96 | } |
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97 | |||
98 | /** |
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99 | * @inheritdoc |
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100 | */ |
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101 | public function get(string $role, string $key, $value, bool $load = true) |
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113 | } |
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114 | |||
115 | /** |
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116 | * @inheritdoc |
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117 | */ |
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118 | public function make(string $role, array $data = [], int $node = Node::NEW) |
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119 | { |
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120 | $m = $this->getMapper($role); |
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121 | |||
122 | // unique entity identifier |
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123 | $pk = $this->schema->define($role, Schema::PRIMARY_KEY); |
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124 | $id = $data[$pk] ?? null; |
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125 | |||
126 | if ($node !== Node::NEW && !empty($id)) { |
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127 | $e = $this->heap->find($role, $pk, $id); |
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128 | if ($e !== null) { |
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129 | $node = $this->heap->get($e); |
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130 | |||
131 | // entity already been loaded, let's update it's relations with new context |
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132 | return $m->hydrate($e, $this->getRelationMap($role)->init($node, $data)); |
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133 | } |
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134 | } |
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135 | |||
136 | // init entity class and prepared (typecasted) data |
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137 | list($e, $prepared) = $m->init($data); |
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138 | |||
139 | $node = new Node($node, $prepared, $m->getRole()); |
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140 | |||
141 | $this->heap->attach($e, $node, $this->getIndexes($m->getRole())); |
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142 | |||
143 | // hydrate entity with it's data, relations and proxies |
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144 | return $m->hydrate($e, $this->getRelationMap($role)->init($node, $prepared)); |
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145 | } |
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146 | |||
147 | /** |
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148 | * @inheritdoc |
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149 | */ |
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150 | public function withFactory(FactoryInterface $factory): ORMInterface |
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151 | { |
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152 | $orm = clone $this; |
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153 | $orm->factory = $factory; |
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154 | |||
155 | return $orm; |
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156 | } |
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157 | |||
158 | /** |
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159 | * @inheritdoc |
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160 | */ |
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161 | public function getFactory(): FactoryInterface |
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162 | { |
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163 | return $this->factory; |
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164 | } |
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165 | |||
166 | /** |
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167 | * @inheritdoc |
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168 | */ |
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169 | public function withSchema(SchemaInterface $schema): ORMInterface |
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170 | { |
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171 | $orm = clone $this; |
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172 | $orm->schema = $schema; |
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173 | |||
174 | return $orm; |
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175 | } |
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176 | |||
177 | /** |
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178 | * @inheritdoc |
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179 | */ |
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180 | public function getSchema(): SchemaInterface |
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187 | } |
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188 | |||
189 | /** |
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190 | * @inheritdoc |
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191 | */ |
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192 | public function withHeap(HeapInterface $heap): ORMInterface |
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193 | { |
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194 | $orm = clone $this; |
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195 | $orm->heap = $heap; |
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196 | |||
197 | return $orm; |
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198 | } |
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199 | |||
200 | /** |
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201 | * @inheritdoc |
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202 | */ |
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203 | public function getHeap(): HeapInterface |
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206 | } |
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207 | |||
208 | /** |
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209 | * @inheritdoc |
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210 | */ |
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211 | public function getMapper($entity): MapperInterface |
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219 | } |
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220 | |||
221 | /** |
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222 | * @inheritdoc |
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223 | */ |
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224 | public function getRepository($entity): RepositoryInterface |
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225 | { |
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226 | $role = $this->resolveRole($entity); |
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227 | if (isset($this->repositories[$role])) { |
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228 | return $this->repositories[$role]; |
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229 | } |
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230 | |||
231 | $repository = $this->getSchema()->define($role, Schema::REPOSITORY) ?? Repository::class; |
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232 | $params = ['orm' => $this, 'role' => $role]; |
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233 | |||
234 | if ($this->getSchema()->define($role, Schema::TABLE) !== null) { |
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235 | $params['select'] = new Select($this, $role); |
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236 | $params['select']->constrain($this->getSource($role)->getConstrain()); |
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237 | } |
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238 | |||
239 | return $this->repositories[$role] = $this->factory->make($repository, $params); |
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240 | } |
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241 | |||
242 | /** |
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243 | * @inheritdoc |
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244 | */ |
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245 | public function getSource(string $role): SourceInterface |
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246 | { |
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247 | if (isset($this->sources[$role])) { |
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248 | return $this->sources[$role]; |
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249 | } |
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250 | |||
251 | $source = $this->schema->define($role, Schema::SOURCE) ?? Source::class; |
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252 | if ($source !== Source::class) { |
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253 | // custom implementation |
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254 | return $this->factory->make($source, ['orm' => $this, 'role' => $role]); |
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255 | } |
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256 | |||
257 | $source = new Source( |
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258 | $this->factory->database($this->schema->define($role, Schema::DATABASE)), |
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259 | $this->schema->define($role, Schema::TABLE) |
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260 | ); |
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261 | |||
262 | $constrain = $this->schema->define($role, Schema::CONSTRAIN); |
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263 | if ($constrain !== null) { |
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264 | $source = $source->withConstrain( |
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265 | is_object($constrain) ? $constrain : $this->factory->make($constrain) |
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266 | ); |
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267 | } |
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268 | |||
269 | return $this->sources[$role] = $source; |
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270 | } |
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271 | |||
272 | /** |
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273 | * Overlay existing promise factory. |
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274 | * |
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275 | * @param PromiseFactoryInterface $promiseFactory |
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276 | * @return ORM |
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277 | */ |
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278 | public function withPromiseFactory(PromiseFactoryInterface $promiseFactory): self |
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284 | } |
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285 | |||
286 | /** |
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287 | * @inheritdoc |
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288 | * |
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289 | * Returns references by default. |
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290 | */ |
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291 | public function promise(string $role, array $scope) |
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303 | } |
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304 | |||
305 | /** |
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306 | * @inheritdoc |
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307 | */ |
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308 | public function queueStore($entity, int $mode = TransactionInterface::MODE_CASCADE): ContextCarrierInterface |
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309 | { |
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310 | if ($entity instanceof ReferenceInterface) { |
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311 | // we do not expect to store promises |
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312 | return new Nil(); |
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313 | } |
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314 | |||
315 | $mapper = $this->getMapper($entity); |
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316 | |||
317 | $node = $this->heap->get($entity); |
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318 | if (is_null($node)) { |
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319 | // automatic entity registration |
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320 | $node = new Node(Node::NEW, [], $mapper->getRole()); |
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321 | $this->heap->attach($entity, $node); |
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322 | } |
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323 | |||
324 | $cmd = $this->generator->generateStore($mapper, $entity, $node); |
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325 | if ($mode != TransactionInterface::MODE_CASCADE) { |
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326 | return $cmd; |
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327 | } |
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328 | |||
329 | if ($this->schema->define($node->getRole(), Schema::RELATIONS) === []) { |
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330 | return $cmd; |
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331 | } |
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332 | |||
333 | // generate set of commands required to store entity relations |
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334 | return $this->getRelationMap($node->getRole())->queueRelations( |
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335 | $cmd, |
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336 | $entity, |
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337 | $node, |
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338 | $mapper->extract($entity) |
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339 | ); |
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340 | } |
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341 | |||
342 | /** |
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343 | * @inheritdoc |
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344 | */ |
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345 | public function queueDelete($entity, int $mode = TransactionInterface::MODE_CASCADE): CommandInterface |
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346 | { |
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347 | $node = $this->heap->get($entity); |
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348 | if ($entity instanceof ReferenceInterface || is_null($node)) { |
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349 | // nothing to do, what about promises? |
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350 | return new Nil(); |
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351 | } |
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352 | |||
353 | // currently we rely on db to delete all nested records (or soft deletes) |
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354 | return $this->generator->generateDelete($this->getMapper($node->getRole()), $entity, $node); |
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355 | } |
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356 | |||
357 | /** |
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358 | * Reset related objects cache. |
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359 | */ |
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360 | public function __clone() |
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367 | } |
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368 | |||
369 | /** |
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370 | * @return array |
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371 | */ |
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372 | public function __debugInfo() |
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373 | { |
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374 | return [ |
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375 | 'schema' => $this->schema |
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376 | ]; |
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377 | } |
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378 | |||
379 | /** |
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380 | * Get list of keys entity must be indexed in a Heap by. |
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381 | * |
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382 | * @param string $role |
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383 | * @return array |
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384 | */ |
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385 | protected function getIndexes(string $role): array |
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395 | } |
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396 | |||
397 | /** |
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398 | * Get relation map associated with the given class. |
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399 | * |
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400 | * @param string $entity |
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401 | * @return RelationMap |
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402 | */ |
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403 | protected function getRelationMap($entity): RelationMap |
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420 |
This check looks for calls to methods that do not seem to exist on a given type. It looks for the method on the type itself as well as in inherited classes or implemented interfaces.
This is most likely a typographical error or the method has been renamed.