Complex classes like Spec 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. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
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 Spec, and based on these observations, apply Extract Interface, too.
1 | <?php |
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100 | class Spec |
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101 | { |
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102 | /** |
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103 | * @param string $functionName |
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104 | * @param mixed[] $arguments |
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105 | * |
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106 | * @return PlatformFunction |
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107 | */ |
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108 | public static function __callStatic(string $functionName, array $arguments = []): PlatformFunction |
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109 | { |
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110 | return self::fun($functionName, ...$arguments); |
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111 | } |
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112 | |||
113 | // Logic |
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114 | |||
115 | /** |
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116 | * @param Filter|QueryModifier ...$specs |
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117 | * |
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118 | * @return AndX |
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119 | */ |
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120 | public static function andX(...$specs): AndX |
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121 | { |
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122 | return new AndX(...$specs); |
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123 | } |
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124 | |||
125 | /** |
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126 | * @param Filter|QueryModifier ...$specs |
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127 | * |
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128 | * @return OrX |
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129 | */ |
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130 | public static function orX(...$specs): OrX |
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131 | { |
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132 | return new OrX(...$specs); |
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133 | } |
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134 | |||
135 | /** |
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136 | * @param Filter $spec |
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137 | * |
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138 | * @return Not |
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139 | */ |
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140 | public static function not(Filter $spec): Not |
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141 | { |
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142 | return new Not($spec); |
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143 | } |
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144 | |||
145 | // Query modifier |
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146 | |||
147 | /** |
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148 | * @param string $field |
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149 | * @param string $newAlias |
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150 | * @param string|null $context |
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151 | * |
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152 | * @return Join |
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153 | */ |
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154 | public static function join(string $field, string $newAlias, ?string $context = null): Join |
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158 | |||
159 | /** |
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160 | * @param string $field |
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161 | * @param string $newAlias |
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162 | * @param string|null $context |
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163 | * |
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164 | * @return LeftJoin |
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165 | */ |
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166 | public static function leftJoin(string $field, string $newAlias, ?string $context = null): LeftJoin |
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170 | |||
171 | /** |
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172 | * @param string $field |
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173 | * @param string $newAlias |
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174 | * @param string|null $context |
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175 | * |
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176 | * @return InnerJoin |
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177 | */ |
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178 | public static function innerJoin(string $field, string $newAlias, ?string $context = null): InnerJoin |
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182 | |||
183 | /** |
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184 | * @param Field|string $field |
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185 | * @param string|null $context |
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186 | * |
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187 | * @return IndexBy |
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188 | */ |
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189 | public static function indexBy($field, ?string $context = null): IndexBy |
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193 | |||
194 | /** |
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195 | * @param int $count |
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196 | * |
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197 | * @return Limit |
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198 | */ |
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199 | public static function limit(int $count): Limit |
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203 | |||
204 | /** |
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205 | * @param int $count |
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206 | * |
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207 | * @return Offset |
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208 | */ |
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209 | public static function offset(int $count): Offset |
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213 | |||
214 | /** |
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215 | * @param int $sliceSize |
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216 | * @param int $sliceNumber |
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217 | * |
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218 | * @return Slice |
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219 | */ |
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220 | public static function slice(int $sliceSize, int $sliceNumber = 0): Slice |
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224 | |||
225 | /** |
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226 | * @param Field|Alias|string $field |
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227 | * @param string $order |
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228 | * @param string|null $context |
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229 | * |
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230 | * @return OrderBy |
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231 | */ |
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232 | public static function orderBy($field, string $order = 'ASC', ?string $context = null): OrderBy |
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236 | |||
237 | /** |
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238 | * @param Field|Alias|string $field |
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239 | * @param string|null $context |
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240 | * |
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241 | * @return GroupBy |
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242 | */ |
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243 | public static function groupBy($field, ?string $context = null): GroupBy |
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247 | |||
248 | /** |
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249 | * @return Distinct |
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250 | */ |
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251 | public static function distinct(): Distinct |
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252 | { |
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253 | return new Distinct(); |
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254 | } |
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255 | |||
256 | // Selection |
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257 | |||
258 | /** |
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259 | * @param Selection|string ...$fields |
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260 | * |
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261 | * @return Select |
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262 | */ |
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263 | public static function select(...$fields): Select |
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264 | { |
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265 | return new Select(...$fields); |
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266 | } |
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267 | |||
268 | /** |
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269 | * @param Selection|string ...$fields |
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270 | * |
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271 | * @return AddSelect |
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272 | */ |
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273 | public static function addSelect(...$fields): AddSelect |
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274 | { |
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275 | return new AddSelect(...$fields); |
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276 | } |
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277 | |||
278 | /** |
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279 | * @param string $class |
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280 | * @param Operand|mixed ...$arguments |
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281 | * |
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282 | * @phpstan-param class-string $class |
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283 | * |
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284 | * @return SelectNew |
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285 | */ |
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286 | public static function selectNew(string $class, ...$arguments): SelectNew |
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287 | { |
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288 | return new SelectNew($class, ...$arguments); |
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289 | } |
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290 | |||
291 | /** |
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292 | * @param string $dqlAliasInContext |
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293 | * |
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294 | * @return SelectEntity |
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295 | */ |
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296 | public static function selectEntity(string $dqlAliasInContext): SelectEntity |
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297 | { |
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298 | return new SelectEntity($dqlAliasInContext); |
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299 | } |
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300 | |||
301 | /** |
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302 | * @param Filter|Operand|string $expression |
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303 | * @param string $newAlias |
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304 | * |
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305 | * @return SelectAs |
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306 | */ |
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307 | public static function selectAs($expression, string $newAlias): SelectAs |
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308 | { |
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309 | return new SelectAs($expression, $newAlias); |
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310 | } |
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311 | |||
312 | /** |
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313 | * @param Filter|Operand|string $expression |
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314 | * @param string $newAlias |
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315 | * |
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316 | * @return SelectHiddenAs |
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317 | */ |
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318 | public static function selectHiddenAs($expression, string $newAlias): SelectHiddenAs |
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319 | { |
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320 | return new SelectHiddenAs($expression, $newAlias); |
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321 | } |
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322 | |||
323 | // Result modifier |
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324 | |||
325 | /** |
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326 | * @return AsArray |
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327 | */ |
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328 | public static function asArray(): AsArray |
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329 | { |
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330 | return new AsArray(); |
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331 | } |
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332 | |||
333 | /** |
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334 | * @return AsSingleScalar |
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335 | */ |
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336 | public static function asSingleScalar(): AsSingleScalar |
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337 | { |
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338 | return new AsSingleScalar(); |
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339 | } |
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340 | |||
341 | /** |
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342 | * @return AsScalar |
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343 | */ |
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344 | public static function asScalar(): AsScalar |
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345 | { |
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346 | return new AsScalar(); |
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347 | } |
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348 | |||
349 | /** |
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350 | * @param int $cacheLifetime How many seconds the cached entry is valid |
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351 | * |
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352 | * @return Cache |
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353 | */ |
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354 | public static function cache(int $cacheLifetime): Cache |
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355 | { |
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356 | return new Cache($cacheLifetime); |
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357 | } |
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358 | |||
359 | /** |
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360 | * @param int $roundSeconds How may seconds to round time |
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361 | * |
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362 | * @return RoundDateTime |
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363 | */ |
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364 | public static function roundDateTimeParams(int $roundSeconds): RoundDateTime |
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365 | { |
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366 | return new RoundDateTime($roundSeconds); |
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367 | } |
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368 | |||
369 | // Filters |
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370 | |||
371 | /** |
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372 | * @param Operand|string $field |
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373 | * @param string|null $context |
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374 | * |
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375 | * @return IsNull |
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376 | */ |
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377 | public static function isNull($field, ?string $context = null): IsNull |
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378 | { |
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379 | return new IsNull($field, $context); |
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380 | } |
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381 | |||
382 | /** |
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383 | * @param Operand|string $field |
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384 | * @param string|null $context |
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385 | * |
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386 | * @return IsNotNull |
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387 | */ |
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388 | public static function isNotNull($field, ?string $context = null): IsNotNull |
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389 | { |
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390 | return new IsNotNull($field, $context); |
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391 | } |
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392 | |||
393 | /** |
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394 | * @param Operand|string $field |
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395 | * @param string|null $context |
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396 | * |
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397 | * @return IsEmpty |
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398 | */ |
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399 | public static function isEmpty($field, ?string $context = null): IsEmpty |
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400 | { |
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401 | return new IsEmpty($field, $context); |
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402 | } |
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403 | |||
404 | /** |
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405 | * Make sure the $field has a value equals to $value. |
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406 | * |
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407 | * @param Operand|string $field |
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408 | * @param Operand|mixed $value |
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409 | * @param string|null $context |
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410 | * |
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411 | * @return In |
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412 | */ |
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413 | public static function in($field, $value, ?string $context = null): In |
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414 | { |
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415 | return new In($field, $value, $context); |
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416 | } |
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417 | |||
418 | /** |
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419 | * @param Operand|string $field |
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420 | * @param Operand|mixed $value |
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421 | * @param string|null $context |
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422 | * |
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423 | * @return Not |
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424 | */ |
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425 | public static function notIn($field, $value, ?string $context = null): Not |
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426 | { |
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427 | return new Not(new In($field, $value, $context)); |
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428 | } |
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429 | |||
430 | /** |
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431 | * @param Operand|string $field |
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432 | * @param Operand|mixed $value |
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433 | * @param string|null $context |
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434 | * |
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435 | * @return Equals |
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436 | */ |
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437 | public static function eq($field, $value, ?string $context = null): Equals |
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438 | { |
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439 | return new Equals($field, $value, $context); |
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440 | } |
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441 | |||
442 | /** |
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443 | * @param Operand|string $field |
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444 | * @param Operand|mixed $value |
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445 | * @param string|null $context |
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446 | * |
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447 | * @return NotEquals |
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448 | */ |
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449 | public static function neq($field, $value, ?string $context = null): NotEquals |
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450 | { |
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451 | return new NotEquals($field, $value, $context); |
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452 | } |
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453 | |||
454 | /** |
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455 | * @param Operand|string $field |
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456 | * @param Operand|mixed $value |
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457 | * @param string|null $context |
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458 | * |
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459 | * @return LessThan |
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460 | */ |
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461 | public static function lt($field, $value, ?string $context = null): LessThan |
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462 | { |
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463 | return new LessThan($field, $value, $context); |
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464 | } |
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465 | |||
466 | /** |
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467 | * @param Operand|string $field |
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468 | * @param Operand|mixed $value |
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469 | * @param string|null $context |
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470 | * |
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471 | * @return LessOrEqualThan |
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472 | */ |
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473 | public static function lte($field, $value, ?string $context = null): LessOrEqualThan |
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474 | { |
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475 | return new LessOrEqualThan($field, $value, $context); |
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476 | } |
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477 | |||
478 | /** |
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479 | * @param Operand|string $field |
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480 | * @param Operand|mixed $value |
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481 | * @param string|null $context |
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482 | * |
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483 | * @return GreaterThan |
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484 | */ |
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485 | public static function gt($field, $value, ?string $context = null): GreaterThan |
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486 | { |
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487 | return new GreaterThan($field, $value, $context); |
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488 | } |
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489 | |||
490 | /** |
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491 | * @param Operand|string $field |
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492 | * @param Operand|mixed $value |
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493 | * @param string|null $context |
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494 | * |
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495 | * @return GreaterOrEqualThan |
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496 | */ |
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497 | public static function gte($field, $value, ?string $context = null): GreaterOrEqualThan |
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498 | { |
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499 | return new GreaterOrEqualThan($field, $value, $context); |
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500 | } |
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501 | |||
502 | /** |
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503 | * @param Operand|string $field |
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504 | * @param LikePattern|string $value |
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505 | * @param string $format |
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506 | * @param string|null $context |
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507 | * |
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508 | * @return Like |
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509 | */ |
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510 | public static function like($field, $value, string $format = Like::CONTAINS, ?string $context = null): Like |
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511 | { |
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512 | return new Like($field, $value, $format, $context); |
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513 | } |
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514 | |||
515 | /** |
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516 | * @param string $value |
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517 | * @param string|null $context |
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518 | * |
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519 | * @return InstanceOfX |
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520 | */ |
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521 | public static function instanceOfX($value, ?string $context = null): InstanceOfX |
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522 | { |
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523 | return new InstanceOfX($value, $context); |
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524 | } |
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525 | |||
526 | /** |
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527 | * @param Operand|mixed $value |
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528 | * @param Operand|string $field |
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529 | * @param string|null $context |
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530 | * |
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531 | * @return MemberOfX |
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532 | */ |
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533 | public static function memberOfX($value, $field, ?string $context = null): MemberOfX |
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534 | { |
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535 | return new MemberOfX($value, $field, $context); |
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536 | } |
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537 | |||
538 | // Specifications |
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539 | |||
540 | /** |
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541 | * @param Filter|QueryModifier $spec |
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542 | * |
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543 | * @return CountOf |
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544 | */ |
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545 | public static function countOf($spec): CountOf |
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546 | { |
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547 | return new CountOf($spec); |
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548 | } |
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549 | |||
550 | /** |
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551 | * @param Filter $spec |
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552 | * |
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553 | * @return Having |
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554 | */ |
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555 | public static function having(Filter $spec): Having |
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556 | { |
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557 | return new Having($spec); |
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558 | } |
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559 | |||
560 | // Operands |
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561 | |||
562 | /** |
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563 | * @param string $fieldName |
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564 | * @param string|null $context |
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565 | * |
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566 | * @return Field |
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567 | */ |
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568 | public static function field(string $fieldName, ?string $context = null): Field |
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569 | { |
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570 | return new Field($fieldName, $context); |
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571 | } |
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572 | |||
573 | /** |
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574 | * @param mixed $value |
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575 | * @param int|string|null $valueType |
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576 | * |
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577 | * @return Value |
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578 | */ |
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579 | public static function value($value, $valueType = null): Value |
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580 | { |
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581 | return new Value($value, $valueType); |
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582 | } |
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583 | |||
584 | /** |
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585 | * @param mixed[] $values |
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586 | * @param int|string|null $valueType |
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587 | * |
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588 | * @return Values |
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589 | */ |
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590 | public static function values(array $values, $valueType = null): Values |
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591 | { |
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592 | return new Values($values, $valueType); |
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593 | } |
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594 | |||
595 | /** |
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596 | * @param string $value |
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597 | * @param string $format |
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598 | * |
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599 | * @return LikePattern |
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600 | */ |
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601 | public static function likePattern(string $value, string $format = LikePattern::CONTAINS): LikePattern |
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602 | { |
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603 | return new LikePattern($value, $format); |
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604 | } |
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605 | |||
606 | // Arithmetic operands |
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607 | |||
608 | /** |
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609 | * @param Operand|string $field |
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610 | * @param Operand|mixed $value |
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611 | * |
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612 | * @return Addition |
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613 | */ |
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614 | public static function add($field, $value): Addition |
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618 | |||
619 | /** |
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620 | * @param Operand|string $field |
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621 | * @param Operand|mixed $value |
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622 | * |
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623 | * @return Subtraction |
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624 | */ |
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625 | public static function sub($field, $value): Subtraction |
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629 | |||
630 | /** |
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631 | * @param Operand|string $field |
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632 | * @param Operand|mixed $value |
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633 | * |
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634 | * @return Multiplication |
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635 | */ |
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636 | public static function mul($field, $value): Multiplication |
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640 | |||
641 | /** |
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642 | * @param Operand|string $field |
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643 | * @param Operand|mixed $value |
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644 | * |
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645 | * @return Division |
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646 | */ |
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647 | public static function div($field, $value): Division |
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651 | |||
652 | // Platform functions |
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653 | |||
654 | /** |
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655 | * @param Operand|string $field |
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656 | * @param bool $distinct |
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657 | * |
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658 | * @return Count |
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659 | */ |
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660 | public static function COUNT($field, bool $distinct = false): Count |
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661 | { |
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662 | return new Count($field, $distinct); |
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663 | } |
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664 | |||
665 | /** |
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666 | * @param Operand|string $field |
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667 | * @param bool $distinct |
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668 | * |
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669 | * @return Avg |
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670 | */ |
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671 | public static function AVG($field, bool $distinct = false): Avg |
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672 | { |
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673 | return new Avg($field, $distinct); |
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674 | } |
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675 | |||
676 | /** |
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677 | * @param Operand|string $field |
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678 | * @param bool $distinct |
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679 | * |
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680 | * @return Min |
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681 | */ |
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682 | public static function MIN($field, bool $distinct = false): Min |
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683 | { |
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684 | return new Min($field, $distinct); |
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685 | } |
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686 | |||
687 | /** |
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688 | * @param Operand|string $field |
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689 | * @param bool $distinct |
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690 | * |
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691 | * @return Max |
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692 | */ |
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693 | public static function MAX($field, bool $distinct = false): Max |
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697 | |||
698 | /** |
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699 | * @param Operand|string $field |
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700 | * @param bool $distinct |
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701 | * |
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702 | * @return Sum |
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703 | */ |
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704 | public static function SUM($field, bool $distinct = false): Sum |
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708 | |||
709 | /** |
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710 | * Add the number of days to a given date. (Supported units are YEAR, MONTH, WEEK, DAY, HOUR, MINUTE, SECOND). |
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711 | * |
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712 | * @param \DateTimeInterface|string|Operand $date |
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713 | * @param int|Operand $value |
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714 | * @param string $unit |
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715 | * |
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716 | * @return DateAdd |
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717 | */ |
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718 | public static function DATE_ADD($date, $value, string $unit): DateAdd |
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722 | |||
723 | /** |
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724 | * Substract the number of days from a given date. (Supported units are YEAR, MONTH, WEEK, DAY, HOUR, MINUTE, SECOND). |
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725 | * |
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726 | * @param \DateTimeInterface|string|Operand $date |
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727 | * @param int|Operand $value |
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728 | * @param string $unit |
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729 | * |
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730 | * @return DateSub |
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731 | */ |
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732 | public static function DATE_SUB($date, $value, string $unit): DateSub |
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736 | |||
737 | /** |
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738 | * Trim the string by the given trim char, defaults to whitespaces. |
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739 | * |
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740 | * @param Operand|string $string |
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741 | * @param string $mode |
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742 | * @param string $characters |
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743 | */ |
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744 | public static function TRIM($string, string $mode = Trim::BOTH, string $characters = ''): Trim |
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748 | |||
749 | /** |
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750 | * Call DQL function. |
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751 | * |
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752 | * Usage: |
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753 | * Spec::fun('CURRENT_DATE') |
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754 | * Spec::fun('DATE_DIFF', $date1, $date2) |
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755 | * |
||
756 | * @param string $functionName |
||
757 | * @param mixed ...$arguments |
||
758 | * |
||
759 | * @return PlatformFunction |
||
760 | */ |
||
761 | public static function fun(string $functionName, ...$arguments): PlatformFunction |
||
765 | |||
766 | /** |
||
767 | * @param string $alias |
||
768 | * |
||
769 | * @return Alias |
||
770 | */ |
||
771 | public static function alias(string $alias): Alias |
||
775 | } |
||
776 |