Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like EE_Message 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 EE_Message, and based on these observations, apply Extract Interface, too.
1 | <?php if ( ! defined( 'EVENT_ESPRESSO_VERSION' ) ) { |
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11 | class EE_Message extends EE_Base_Class implements EEI_Admin_Links { |
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12 | |||
13 | /** |
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14 | * @deprecated 4.9.0 Added for backward compat with add-on's |
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15 | * @type null |
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16 | */ |
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17 | public $template_pack; |
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18 | |||
19 | /** |
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20 | * @deprecated 4.9.0 Added for backward compat with add-on's |
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21 | * @type null |
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22 | */ |
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23 | public $template_variation; |
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24 | |||
25 | /** |
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26 | * @deprecated 4.9.0 Added for backward compat with add-on's |
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27 | * @type string |
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28 | */ |
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29 | public $content = ''; |
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30 | |||
31 | |||
32 | /** |
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33 | * @type EE_messenger $_messenger |
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34 | */ |
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35 | protected $_messenger = null; |
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36 | |||
37 | /** |
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38 | * @type EE_message_type $_message_type |
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39 | */ |
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40 | protected $_message_type = null; |
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41 | |||
42 | |||
43 | |||
44 | /** |
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45 | * |
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46 | * @param array $props_n_values |
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47 | * @param string $timezone |
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48 | * @param array $date_formats incoming date formats in an array. First value is the date_format, second is time format. |
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49 | * @return EE_Message |
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50 | */ |
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51 | public static function new_instance( $props_n_values = array(), $timezone = null, $date_formats = array() ) { |
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60 | |||
61 | |||
62 | |||
63 | /** |
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64 | * |
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65 | * @param array $props_n_values |
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66 | * @param string $timezone |
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67 | * @return EE_Message |
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68 | */ |
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69 | public static function new_instance_from_db( $props_n_values = array(), $timezone = null ) { |
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72 | |||
73 | |||
74 | |||
75 | /** |
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76 | * Gets MSG_token |
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77 | * |
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78 | * @return int |
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79 | */ |
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80 | public function MSG_token() { |
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83 | |||
84 | |||
85 | |||
86 | /** |
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87 | * Sets MSG_token |
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88 | * |
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89 | * @param int $MSG_token |
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90 | */ |
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91 | public function set_MSG_token( $MSG_token) { |
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94 | |||
95 | |||
96 | |||
97 | |||
98 | /** |
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99 | * Gets GRP_ID |
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100 | * |
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101 | * @return int |
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102 | */ |
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103 | public function GRP_ID() { |
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106 | |||
107 | |||
108 | |||
109 | /** |
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110 | * Sets GRP_ID |
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111 | * |
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112 | * @param int $GRP_ID |
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113 | */ |
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114 | public function set_GRP_ID( $GRP_ID ) { |
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117 | |||
118 | |||
119 | |||
120 | |||
121 | /** |
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122 | * Gets TXN_ID |
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123 | * |
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124 | * @return int |
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125 | */ |
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126 | public function TXN_ID() { |
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129 | |||
130 | |||
131 | |||
132 | /** |
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133 | * Sets TXN_ID |
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134 | * |
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135 | * @param int $TXN_ID |
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136 | */ |
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137 | public function set_TXN_ID( $TXN_ID) { |
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140 | |||
141 | |||
142 | |||
143 | |||
144 | /** |
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145 | * Gets messenger |
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146 | * |
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147 | * @return string |
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148 | */ |
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149 | public function messenger() { |
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152 | |||
153 | |||
154 | |||
155 | /** |
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156 | * Sets messenger |
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157 | * |
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158 | * @param string $messenger |
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159 | */ |
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160 | public function set_messenger( $messenger ) { |
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163 | |||
164 | |||
165 | |||
166 | /** |
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167 | * Returns corresponding messenger object for the set messenger on this message |
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168 | * |
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169 | * @return EE_messenger | null |
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170 | */ |
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171 | public function messenger_object() { |
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174 | |||
175 | |||
176 | |||
177 | /** |
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178 | * Sets messenger |
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179 | * |
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180 | * @param EE_messenger $messenger |
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181 | */ |
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182 | public function set_messenger_object( EE_messenger $messenger ) { |
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185 | |||
186 | |||
187 | |||
188 | /** |
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189 | * validates messenger |
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190 | * |
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191 | * @param bool $throw_exceptions |
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192 | * @return bool |
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193 | * @throws \EE_Error |
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194 | */ |
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195 | public function valid_messenger( $throw_exceptions = false ) { |
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212 | |||
213 | |||
214 | |||
215 | /** |
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216 | * This returns the set localized label for the messenger on this message. |
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217 | * Note, if unable to retrieve the EE_messenger object then will just return the messenger slug saved |
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218 | * with this message. |
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219 | * |
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220 | * @param bool $plural whether to return the plural label or not. |
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221 | * @return string |
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222 | */ |
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223 | public function messenger_label( $plural = false ) { |
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228 | |||
229 | |||
230 | |||
231 | /** |
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232 | * Gets message_type |
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233 | * |
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234 | * @return string |
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235 | */ |
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236 | public function message_type() { |
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239 | |||
240 | |||
241 | |||
242 | /** |
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243 | * Sets message_type |
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244 | * |
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245 | * @param string $message_type |
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246 | */ |
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247 | public function set_message_type( $message_type ) { |
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250 | |||
251 | |||
252 | |||
253 | /** |
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254 | * Returns the message type object for the set message type on this message |
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255 | * |
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256 | * @return EE_message_type | null |
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257 | */ |
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258 | public function message_type_object() { |
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261 | |||
262 | |||
263 | |||
264 | /** |
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265 | * Sets message_type |
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266 | * |
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267 | * @param EE_message_type $message_type |
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268 | * @param bool $set_priority This indicates whether to set the priority to whatever the priority is on |
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269 | * the message type or not. |
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270 | */ |
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271 | public function set_message_type_object( EE_message_type $message_type, $set_priority = false ) { |
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277 | |||
278 | |||
279 | |||
280 | /** |
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281 | * validates message_type |
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282 | * |
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283 | * @param bool $throw_exceptions |
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284 | * @return bool |
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285 | * @throws \EE_Error |
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286 | */ |
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287 | public function valid_message_type( $throw_exceptions = false ) { |
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304 | |||
305 | |||
306 | |||
307 | /** |
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308 | * validates messenger and message_type (that they are valid EE_messenger and EE_message_type objects). |
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309 | * |
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310 | * @param bool $throw_exceptions |
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311 | * @return bool |
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312 | * @throws \EE_Error |
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313 | */ |
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314 | public function is_valid( $throw_exceptions = false ) { |
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320 | |||
321 | |||
322 | /** |
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323 | * This validates whether the internal messenger and message type objects are valid for sending. |
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324 | * |
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325 | * Three checks are done: |
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326 | * |
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327 | * 1. There is a valid messenger object. |
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328 | * 2. There is a valid message type object. |
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329 | * 3. The message type object is active for the messenger. |
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330 | * |
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331 | * @throws EE_Error But only if $throw_exceptions is set to true. |
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332 | * |
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333 | * @param bool $throw_exceptions |
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334 | * @return bool |
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335 | */ |
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336 | public function is_valid_for_sending_or_generation( $throw_exceptions = false ) { |
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354 | |||
355 | |||
356 | |||
357 | /** |
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358 | * This returns the set localized label for the message type on this message. |
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359 | * Note, if unable to retrieve the EE_message_type object then will just return the message type slug saved |
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360 | * with this message. |
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361 | * |
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362 | * @param bool $plural whether to return the plural label or not. |
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363 | * @return string |
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364 | */ |
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365 | public function message_type_label( $plural = false ) { |
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370 | |||
371 | |||
372 | |||
373 | /** |
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374 | * Gets context |
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375 | * |
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376 | * @return string |
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377 | */ |
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378 | public function context() { |
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381 | |||
382 | |||
383 | |||
384 | |||
385 | /** |
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386 | * This returns the corresponding localized label for the given context slug, if possible from installed message types. |
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387 | * Otherwise, this will just return the set context slug on this object. |
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388 | * |
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389 | * @return string |
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390 | */ |
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391 | public function context_label() { |
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397 | |||
398 | |||
399 | |||
400 | /** |
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401 | * Sets context |
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402 | * |
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403 | * @param string $context |
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404 | */ |
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405 | public function set_context( $context ) { |
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408 | |||
409 | |||
410 | |||
411 | /** |
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412 | * Gets recipient_ID |
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413 | * |
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414 | * @return int |
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415 | */ |
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416 | public function recipient_ID() { |
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419 | |||
420 | |||
421 | |||
422 | /** |
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423 | * Sets recipient_ID |
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424 | * |
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425 | * @param string $recipient_ID |
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426 | */ |
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427 | public function set_recipient_ID( $recipient_ID ) { |
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430 | |||
431 | |||
432 | |||
433 | /** |
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434 | * Gets recipient_type |
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435 | * |
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436 | * @return string |
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437 | */ |
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438 | public function recipient_type() { |
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441 | |||
442 | |||
443 | |||
444 | |||
445 | /** |
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446 | * Return the related object matching the recipient type and ID. |
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447 | * |
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448 | * @return EE_Base_Class | null |
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449 | */ |
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450 | public function recipient_object() { |
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457 | |||
458 | |||
459 | |||
460 | /** |
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461 | * Sets recipient_type |
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462 | * |
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463 | * @param string $recipient_type |
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464 | */ |
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465 | public function set_recipient_type( $recipient_type ) { |
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468 | |||
469 | |||
470 | |||
471 | /** |
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472 | * Gets content |
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473 | * |
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474 | * @return string |
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475 | */ |
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476 | public function content() { |
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479 | |||
480 | |||
481 | |||
482 | /** |
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483 | * Sets content |
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484 | * |
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485 | * @param string $content |
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486 | */ |
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487 | public function set_content( $content ) { |
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490 | |||
491 | |||
492 | |||
493 | /** |
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494 | * Gets subject |
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495 | * |
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496 | * @return string |
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497 | */ |
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498 | public function subject() { |
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501 | |||
502 | |||
503 | |||
504 | /** |
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505 | * Sets subject |
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506 | * |
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507 | * @param string $subject |
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508 | */ |
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509 | public function set_subject( $subject ) { |
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512 | |||
513 | |||
514 | |||
515 | /** |
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516 | * Gets to |
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517 | * |
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518 | * @return string |
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519 | */ |
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520 | public function to() { |
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524 | |||
525 | |||
526 | |||
527 | /** |
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528 | * Sets to |
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529 | * |
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530 | * @param string $to |
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531 | */ |
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532 | public function set_to( $to ) { |
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535 | |||
536 | |||
537 | |||
538 | /** |
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539 | * Gets from |
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540 | * |
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541 | * @return string |
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542 | */ |
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543 | public function from() { |
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546 | |||
547 | |||
548 | |||
549 | /** |
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550 | * Sets from |
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551 | * |
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552 | * @param string $from |
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553 | */ |
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554 | public function set_from( $from ) { |
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557 | |||
558 | |||
559 | |||
560 | |||
561 | |||
562 | /** |
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563 | * Gets priority |
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564 | * |
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565 | * @return int |
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566 | */ |
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567 | public function priority() { |
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570 | |||
571 | |||
572 | |||
573 | /** |
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574 | * Sets priority |
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575 | * |
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576 | * Note. Send Now Messengers always override any priority that may be set on a Message. So |
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577 | * this method calls the send_now method to verify that. |
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578 | * |
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579 | * @param int $priority |
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580 | */ |
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581 | public function set_priority( $priority ) { |
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585 | |||
586 | |||
587 | /** |
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588 | * Overrides parent::set method so we can capture any sets for priority. |
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589 | * @see parent::set() for phpdocs |
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590 | * @param string $field_name |
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591 | * @param mixed $field_value |
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592 | * @param bool $use_default |
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593 | * @throws EE_Error |
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594 | */ |
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595 | public function set( $field_name, $field_value, $use_default = false ) { |
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601 | |||
602 | |||
603 | |||
604 | /** |
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605 | * @return bool |
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606 | * @throws \EE_Error |
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607 | */ |
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608 | public function send_now() { |
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612 | |||
613 | |||
614 | |||
615 | /** |
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616 | * Gets STS_ID |
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617 | * |
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618 | * @return string |
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619 | */ |
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620 | public function STS_ID() { |
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623 | |||
624 | |||
625 | |||
626 | /** |
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627 | * Sets STS_ID |
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628 | * |
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629 | * @param string $STS_ID |
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630 | */ |
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631 | public function set_STS_ID( $STS_ID ) { |
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634 | |||
635 | |||
636 | |||
637 | /** |
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638 | * Gets created |
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639 | * |
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640 | * @return string |
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641 | */ |
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642 | public function created() { |
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645 | |||
646 | |||
647 | |||
648 | /** |
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649 | * Sets created |
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650 | * |
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651 | * @param string $created |
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652 | */ |
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653 | public function set_created( $created ) { |
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656 | |||
657 | |||
658 | |||
659 | /** |
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660 | * Gets modified |
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661 | * |
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662 | * @return string |
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663 | */ |
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664 | public function modified() { |
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667 | |||
668 | |||
669 | |||
670 | /** |
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671 | * Sets modified |
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672 | * |
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673 | * @param string $modified |
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674 | */ |
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675 | public function set_modified( $modified ) { |
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678 | |||
679 | |||
680 | |||
681 | |||
682 | /** |
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683 | * Sets generation data for this message. |
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684 | * @param mixed $data |
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685 | */ |
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686 | public function set_generation_data( $data ) { |
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689 | |||
690 | |||
691 | |||
692 | |||
693 | |||
694 | /** |
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695 | * Returns any set generation data for this message. |
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696 | * @return mixed|null |
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697 | */ |
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698 | public function get_generation_data() { |
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701 | |||
702 | |||
703 | |||
704 | |||
705 | /** |
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706 | * Gets any error message. |
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707 | * @return mixed|null |
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708 | */ |
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709 | public function error_message() { |
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712 | |||
713 | |||
714 | /** |
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715 | * Sets an error message. |
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716 | * @param $message |
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717 | * @return bool|int |
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718 | */ |
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719 | public function set_error_message( $message ) { |
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722 | |||
723 | |||
724 | |||
725 | |||
726 | /** |
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727 | * This retrieves the associated template pack with this message. |
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728 | * @return EE_Messages_Template_Pack | null |
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729 | */ |
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730 | View Code Duplication | public function get_template_pack() { |
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754 | |||
755 | |||
756 | |||
757 | |||
758 | /** |
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759 | * Retrieves the variation used for generating this message. |
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760 | * @return string |
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761 | */ |
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762 | View Code Duplication | public function get_template_pack_variation() { |
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788 | |||
789 | /** |
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790 | * Return the link to the admin details for the object. |
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791 | * @return string |
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792 | */ |
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793 | public function get_admin_details_link() { |
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810 | |||
811 | /** |
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812 | * Returns the link to the editor for the object. Sometimes this is the same as the details. |
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813 | * @return string |
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814 | */ |
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815 | public function get_admin_edit_link() { |
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818 | |||
819 | /** |
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820 | * Returns the link to a settings page for the object. |
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821 | * @return string |
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822 | */ |
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823 | View Code Duplication | public function get_admin_settings_link() { |
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833 | |||
834 | /** |
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835 | * Returns the link to the "overview" for the object (typically the "list table" view). |
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836 | * @return string |
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837 | */ |
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838 | public function get_admin_overview_link() { |
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848 | |||
849 | |||
850 | } |
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851 | /* End of file EE_Message.class.php */ |
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852 | /* Location: /core/db_classes/EE_Message.class.php */ |
This check looks for a call to a parent method whose name is different than the method from which it is called.
Consider the following code:
The
getFirstName()
method in theSon
calls the wrong method in the parent class.