Total Complexity | 54 |
Total Lines | 353 |
Duplicated Lines | 0 % |
Changes | 1 | ||
Bugs | 0 | Features | 0 |
Complex classes like Base 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 Base, and based on these observations, apply Extract Interface, too.
1 | <?php |
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8 | abstract class Base |
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9 | { |
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10 | /** |
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11 | * @var array |
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12 | */ |
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13 | protected $args; |
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14 | |||
15 | /** |
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16 | * @var array |
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17 | */ |
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18 | protected $dependencies = []; |
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19 | |||
20 | /** |
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21 | * Whether the field has multiple values. |
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22 | * |
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23 | * @var bool |
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24 | */ |
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25 | protected $multi = false; |
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26 | |||
27 | /** |
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28 | * Whether the field is rendered outside of the form table. |
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29 | * |
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30 | * @var bool |
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31 | */ |
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32 | protected $outside = false; |
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33 | |||
34 | /** |
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35 | * The field element tag (i.e. "input"). |
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36 | * |
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37 | * @var string |
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38 | */ |
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39 | protected $element; |
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40 | |||
41 | public function __construct(array $args = []) |
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42 | { |
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43 | $this->args = $args; |
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44 | } |
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45 | |||
46 | /** |
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47 | * @param string $property |
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48 | * |
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49 | * @return mixed |
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50 | * @throws Exception |
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51 | */ |
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52 | public function __get($property) |
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63 | } |
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64 | |||
65 | /** |
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66 | * Generate the field description. |
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67 | * |
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68 | * @param bool $paragraph |
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69 | * |
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70 | * @return string|null |
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71 | */ |
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72 | public function generateDescription($paragraph = true) |
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81 | } |
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82 | |||
83 | /** |
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84 | * Generate the field label. |
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85 | * |
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86 | * @return string|null |
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87 | */ |
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88 | public function generateLabel() |
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89 | { |
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90 | if (empty($this->args['label'])) { |
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91 | return; |
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92 | } |
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93 | |||
94 | $for = (bool) $this->args['id'] |
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95 | ? " for=\"{$this->args['id']}\"" |
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96 | : ''; |
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97 | |||
98 | return sprintf('<label%s>%s</label>', $for, $this->args['label']); |
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99 | } |
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100 | |||
101 | /** |
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102 | * Render this field type. |
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103 | * |
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104 | * @return string |
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105 | */ |
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106 | abstract public function render(); |
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107 | |||
108 | /** |
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109 | * Convert a value to camel case. |
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110 | * |
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111 | * @param string $value |
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112 | * |
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113 | * @return string |
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114 | */ |
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115 | protected function camelCase($value) |
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116 | { |
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117 | $value = ucwords(str_replace(['-', '_'], ' ', $value)); |
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118 | |||
119 | return lcfirst(str_replace(' ', '', $value)); |
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120 | } |
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121 | |||
122 | /** |
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123 | * Implode the field attributes. |
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124 | * |
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125 | * @return string |
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126 | */ |
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127 | protected function implodeAttributes($defaults = []) |
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128 | { |
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129 | return $this->normalize($defaults, 'implode'); |
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130 | } |
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131 | |||
132 | /** |
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133 | * Implode multi-field items. |
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134 | * |
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135 | * @return string|null |
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136 | */ |
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137 | protected function implodeOptions($method = 'select_option', $default = null) |
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138 | { |
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139 | $this->args['default'] ?: $this->args['default'] = $default; |
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140 | |||
141 | $method = $this->camelCase($method); |
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142 | |||
143 | $method = method_exists($this, $method) |
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144 | ? $method |
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145 | : 'selectOption'; |
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146 | |||
147 | $i = 0; |
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148 | |||
149 | if ('singleInput' === $method) { |
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150 | if (!isset($this->args['options']) || empty($this->args['options'])) { |
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151 | return; |
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152 | } |
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153 | |||
154 | // hack to make sure unset single checkbox values start at 1 instead of 0 |
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155 | if (0 === key($this->args['options'])) { |
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156 | $options = ['1' => $this->args['options'][0]]; |
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157 | $this->args['options'] = $options; |
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158 | } |
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159 | |||
160 | return $this->singleInput(); |
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161 | } |
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162 | |||
163 | return array_reduce(array_keys($this->args['options']), function ($carry, $key) use (&$i, $method) { |
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164 | return $carry .= $this->$method($key, $i++); |
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165 | }); |
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166 | } |
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167 | |||
168 | /** |
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169 | * Normalize attributes for this specific field type. |
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170 | * |
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171 | * @param bool|string $implode |
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172 | * |
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173 | * @return array|string |
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174 | */ |
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175 | protected function normalize(array $defaults = [], $implode = false) |
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184 | } |
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185 | |||
186 | /** |
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187 | * Merge and overwrite empty $this->args values with $defaults. |
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188 | * |
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189 | * @return array |
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190 | */ |
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191 | protected function mergeAttributesWith(array $defaults) |
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205 | } |
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206 | |||
207 | /** |
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208 | * Generate checkboxes and radios. |
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209 | * |
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210 | * @param string $optionKey |
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211 | * @param string $number |
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212 | * @param string $type |
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213 | * |
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214 | * @return string|null |
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215 | */ |
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216 | protected function multiInput($optionKey, $number, $type = 'radio') |
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217 | { |
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218 | $args = $this->multiInputArgs($type, $optionKey, $number); |
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219 | |||
220 | if (!$args) { |
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221 | return; |
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222 | } |
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223 | |||
224 | $attributes = ''; |
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225 | |||
226 | foreach ($args['attributes'] as $key => $val) { |
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227 | $attributes .= sprintf('%s="%s" ', $key, $val); |
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228 | } |
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229 | |||
230 | return sprintf('<li><label for="%s"><input %s%s/> %s</label></li>', |
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231 | $args['attributes']['id'], |
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232 | $attributes, |
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233 | checked($args['value'], $args['attributes']['value'], false), |
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234 | $args['label'] |
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235 | ); |
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236 | } |
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237 | |||
238 | /** |
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239 | * Build the checkbox/radio args. |
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240 | * |
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241 | * @param string $type |
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242 | * @param string $optionName |
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243 | * @param string $number |
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244 | * |
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245 | * @return array|null |
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246 | */ |
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247 | protected function multiInputArgs($type, $optionName, $number) |
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248 | { |
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249 | $defaults = [ |
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250 | 'class' => '', |
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251 | 'name' => '', |
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252 | 'type' => $type, |
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253 | 'value' => '', |
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254 | ]; |
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255 | |||
256 | $args = []; |
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257 | |||
258 | $value = $this->args['options'][$optionName]; |
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259 | |||
260 | if (is_array($value)) { |
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261 | $args = $value; |
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262 | } |
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263 | |||
264 | if (is_string($value)) { |
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265 | $label = $value; |
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266 | } |
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267 | |||
268 | isset($args['name']) ?: $args['name'] = $optionName; |
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269 | isset($args['value']) ?: $args['value'] = $optionName; |
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270 | |||
271 | $args = wp_parse_args($args, $defaults); |
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272 | |||
273 | if (!isset($label) || '' === $args['name']) { |
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274 | return; |
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275 | } |
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276 | |||
277 | $args['id'] = $this->args['id']."-{$number}"; |
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278 | $args['name'] = $this->args['name'].('checkbox' === $type && $this->multi ? '[]' : ''); |
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279 | |||
280 | $args = array_filter($args, function ($value) { |
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281 | return '' !== $value; |
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282 | }); |
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283 | |||
284 | if (is_array($this->args['value'])) { |
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285 | if (in_array($args['value'], $this->args['value'])) { |
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286 | $this->args['default'] = $args['value']; |
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287 | } |
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288 | } elseif ($this->args['value']) { |
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289 | $this->args['default'] = $this->args['value']; |
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290 | } elseif ('radio' == $type && !$this->args['default']) { |
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291 | $this->args['default'] = 0; |
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292 | } |
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293 | |||
294 | return [ |
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295 | 'attributes' => $args, |
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296 | 'label' => $label, |
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297 | 'value' => $this->args['default'], |
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298 | ]; |
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299 | } |
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300 | |||
301 | /** |
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302 | * Generate checkboxes. |
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303 | * |
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304 | * @param string $optionKey |
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305 | * @param string $number |
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306 | * |
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307 | * @return string|null |
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308 | */ |
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309 | protected function multiInputCheckbox($optionKey, $number) |
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310 | { |
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311 | return $this->multiInput($optionKey, $number, 'checkbox'); |
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312 | } |
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313 | |||
314 | /** |
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315 | * Generate select options. |
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316 | * |
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317 | * @param string $optionKey |
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318 | * |
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319 | * @return string |
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320 | */ |
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321 | protected function selectOption($optionKey) |
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322 | { |
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323 | return sprintf('<option value="%s"%s>%s</option>', |
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324 | $optionKey, |
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325 | selected($this->args['value'], $optionKey, false), |
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326 | $this->args['options'][$optionKey] |
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327 | ); |
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328 | } |
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329 | |||
330 | /** |
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331 | * Generate a single checkbox. |
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332 | * |
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333 | * @param string $type |
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334 | * |
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335 | * @return string|null |
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336 | */ |
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337 | protected function singleInput($type = 'checkbox') |
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361 | ); |
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362 | } |
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363 | } |
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364 |