Total Complexity | 62 |
Total Lines | 323 |
Duplicated Lines | 0 % |
Changes | 3 | ||
Bugs | 0 | Features | 1 |
Complex classes like RelationshipObject 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 RelationshipObject, and based on these observations, apply Extract Interface, too.
1 | <?php |
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17 | class RelationshipObject implements ObjectInterface, PaginableInterface, RecursiveResourceContainerInterface { |
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18 | use AtMemberManager, LinksManager; |
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19 | |||
20 | const TO_ONE = 'one'; |
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21 | const TO_MANY = 'many'; |
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22 | |||
23 | /** @var MetaObject */ |
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24 | protected $meta; |
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25 | /** @var ResourceInterface */ |
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26 | protected $resource; |
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27 | /** @var string one of the RelationshipObject::TO_* constants */ |
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28 | protected $type; |
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29 | /** @var ResourceInterface[] */ |
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30 | protected $resources = []; |
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31 | |||
32 | /** |
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33 | * @param string $type one of the RelationshipObject::TO_* constants |
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34 | * |
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35 | * @throws InputException if $type is unknown |
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36 | */ |
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37 | public function __construct($type) { |
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38 | if (in_array($type, [RelationshipObject::TO_ONE, RelationshipObject::TO_MANY], $strict=true) === false) { |
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39 | throw new InputException('unknown relationship type "'.$type.'"'); |
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40 | } |
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41 | |||
42 | $this->type = $type; |
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43 | } |
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44 | |||
45 | /** |
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46 | * human api |
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47 | */ |
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48 | |||
49 | /** |
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50 | * create a RelationshipObject from mixed input |
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51 | * |
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52 | * @param mixed $relation ResourceInterface | ResourceInterface[] | CollectionDocument |
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53 | * @param array $links optional |
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54 | * @param array $meta optional |
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55 | * @return RelationshipObject |
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56 | * |
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57 | * @throws InputException if $relation is not one of the supported formats |
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58 | */ |
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59 | public static function fromAnything($relation, array $links=[], array $meta=[]) { |
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60 | if (is_array($relation)) { |
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61 | $relation = CollectionDocument::fromResources(...$relation); |
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62 | } |
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63 | |||
64 | if ($relation instanceof ResourceInterface) { |
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65 | $relationshipObject = self::fromResource($relation, $links, $meta); |
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66 | } |
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67 | elseif ($relation instanceof CollectionDocument) { |
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68 | $relationshipObject = self::fromCollectionDocument($relation, $links, $meta); |
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69 | } |
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70 | elseif ($relation === null) { |
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71 | $relationshipObject = new RelationshipObject(RelationshipObject::TO_ONE); |
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72 | } |
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73 | else { |
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74 | throw new InputException('unknown format of relation "'.gettype($relation).'"'); |
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75 | } |
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76 | |||
77 | return $relationshipObject; |
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78 | } |
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79 | |||
80 | /** |
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81 | * @param ResourceInterface $resource |
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82 | * @param array $links optional |
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83 | * @param array $meta optional |
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84 | * @param string $type optional, one of the RelationshipObject::TO_* constants, defaults to RelationshipObject::TO_ONE |
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85 | * @return RelationshipObject |
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86 | */ |
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87 | public static function fromResource(ResourceInterface $resource, array $links=[], array $meta=[], $type=RelationshipObject::TO_ONE) { |
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88 | $relationshipObject = new self($type); |
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89 | |||
90 | if ($type === RelationshipObject::TO_ONE) { |
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91 | $relationshipObject->setResource($resource); |
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92 | } |
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93 | elseif ($type === RelationshipObject::TO_MANY) { |
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94 | $relationshipObject->addResource($resource); |
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95 | } |
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96 | |||
97 | if ($links !== []) { |
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98 | $relationshipObject->setLinksObject(LinksObject::fromArray($links)); |
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99 | } |
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100 | if ($meta !== []) { |
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101 | $relationshipObject->setMetaObject(MetaObject::fromArray($meta)); |
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102 | } |
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103 | |||
104 | return $relationshipObject; |
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105 | } |
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106 | |||
107 | /** |
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108 | * @param CollectionDocument $collectionDocument |
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109 | * @param array $links optional |
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110 | * @param array $meta optional |
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111 | * @return RelationshipObject |
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112 | */ |
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113 | public static function fromCollectionDocument(CollectionDocument $collectionDocument, array $links=[], array $meta=[]) { |
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114 | $relationshipObject = new self(RelationshipObject::TO_MANY); |
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115 | |||
116 | foreach ($collectionDocument->getContainedResources() as $resource) { |
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117 | $relationshipObject->addResource($resource); |
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118 | } |
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119 | |||
120 | if ($links !== []) { |
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121 | $relationshipObject->setLinksObject(LinksObject::fromArray($links)); |
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122 | } |
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123 | if ($meta !== []) { |
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124 | $relationshipObject->setMetaObject(MetaObject::fromArray($meta)); |
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125 | } |
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126 | |||
127 | return $relationshipObject; |
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128 | } |
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129 | |||
130 | /** |
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131 | * @param string $href |
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132 | * @param array $meta optional, if given a LinkObject is added, otherwise a link string is added |
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133 | */ |
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134 | public function setSelfLink($href, array $meta=[]) { |
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135 | $this->addLink('self', $href, $meta); |
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136 | } |
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137 | |||
138 | /** |
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139 | * @param string $href |
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140 | * @param array $meta optional, if given a LinkObject is added, otherwise a link string is added |
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141 | */ |
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142 | public function setRelatedLink($href, array $meta=[]) { |
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143 | $this->addLink('related', $href, $meta); |
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144 | } |
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145 | |||
146 | /** |
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147 | * @inheritDoc |
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148 | * |
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149 | * @throws InputException if used on a to-one relationship |
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150 | */ |
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151 | public function setPaginationLinks($previousHref=null, $nextHref=null, $firstHref=null, $lastHref=null) { |
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152 | if ($this->type === RelationshipObject::TO_ONE) { |
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153 | throw new InputException('can not add pagination links to a to-one relationship'); |
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154 | } |
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155 | |||
156 | if ($previousHref !== null) { |
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157 | $this->addLink('prev', $previousHref); |
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158 | } |
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159 | if ($nextHref !== null) { |
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160 | $this->addLink('next', $nextHref); |
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161 | } |
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162 | if ($firstHref !== null) { |
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163 | $this->addLink('first', $firstHref); |
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164 | } |
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165 | if ($lastHref !== null) { |
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166 | $this->addLink('last', $lastHref); |
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167 | } |
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168 | } |
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169 | |||
170 | /** |
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171 | * @param string $key |
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172 | * @param mixed $value |
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173 | */ |
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174 | public function addMeta($key, $value) { |
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175 | if ($this->meta === null) { |
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176 | $this->setMetaObject(new MetaObject()); |
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177 | } |
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178 | |||
179 | $this->meta->add($key, $value); |
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180 | } |
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181 | |||
182 | /** |
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183 | * spec api |
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184 | */ |
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185 | |||
186 | /** |
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187 | * set the resource on a to-one relationship |
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188 | * |
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189 | * @param ResourceInterface $resource |
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190 | * |
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191 | * @throws InputException if used on a to-many relationship, use {@see ->addResource()} instead |
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192 | */ |
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193 | public function setResource(ResourceInterface $resource) { |
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194 | if ($this->type === RelationshipObject::TO_MANY) { |
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195 | throw new InputException('can not set a resource on a to-many relationship, use ->addResource()'); |
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196 | } |
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197 | |||
198 | $this->resource = $resource; |
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199 | } |
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200 | |||
201 | /** |
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202 | * add a resource to a to-many relationship |
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203 | * |
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204 | * @param ResourceInterface $resource |
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205 | * |
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206 | * @throws InputException if used on a to-one relationship, use {@see ->setResource()} instead |
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207 | */ |
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208 | public function addResource(ResourceInterface $resource) { |
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214 | } |
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215 | |||
216 | /** |
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217 | * @param MetaObject $metaObject |
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218 | */ |
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219 | public function setMetaObject(MetaObject $metaObject) { |
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220 | $this->meta = $metaObject; |
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221 | } |
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222 | |||
223 | /** |
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224 | * internal api |
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225 | */ |
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226 | |||
227 | /** |
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228 | * whether or not the $otherResource is (one of) the resource(s) inside the relationship |
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229 | * |
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230 | * @internal |
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231 | * |
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232 | * @param ResourceInterface $otherResource |
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233 | * @return boolean |
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234 | */ |
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235 | public function hasResource(ResourceInterface $otherResource) { |
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236 | if ($this->isEmpty()) { |
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237 | return false; |
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238 | } |
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239 | if ($this->type === RelationshipObject::TO_ONE) { |
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240 | return $this->resource->getResource()->equals($otherResource->getResource()); |
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241 | } |
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242 | if ($this->type === RelationshipObject::TO_MANY) { |
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243 | foreach ($this->resources as $ownResource) { |
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244 | if ($ownResource->getResource()->equals($otherResource->getResource())) { |
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245 | return true; |
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246 | } |
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247 | } |
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248 | } |
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249 | |||
250 | return false; |
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251 | } |
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252 | |||
253 | /** |
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254 | * ObjectInterface |
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255 | */ |
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256 | |||
257 | /** |
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258 | * @inheritDoc |
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259 | */ |
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260 | public function isEmpty() { |
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278 | } |
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279 | |||
280 | /** |
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281 | * @inheritDoc |
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282 | */ |
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283 | public function toArray() { |
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306 | } |
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307 | |||
308 | /** |
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309 | * RecursiveResourceContainerInterface |
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310 | */ |
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311 | |||
312 | /** |
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313 | * @inheritDoc |
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314 | */ |
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315 | public function getNestedContainedResourceObjects() { |
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316 | if ($this->isEmpty()) { |
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340 | } |
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341 | } |
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342 |