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