| Total Complexity | 77 |
| Total Lines | 550 |
| Duplicated Lines | 0 % |
| Changes | 19 | ||
| Bugs | 4 | Features | 0 |
Complex classes like CMSNicetiesEasyRelationshipField 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 CMSNicetiesEasyRelationshipField, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 46 | class CMSNicetiesEasyRelationshipField extends CompositeField |
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| 47 | { |
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| 48 | /** |
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| 49 | * the object calling this class, aka the class where we add the fields. |
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| 50 | * |
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| 51 | * @var object |
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| 52 | */ |
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| 53 | protected $callingObject; |
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| 54 | |||
| 55 | /** |
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| 56 | * name of the relations e.g. Members as defined in has_many or many_many. |
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| 57 | * |
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| 58 | * @var string |
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| 59 | */ |
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| 60 | protected $relationName = ''; |
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| 61 | |||
| 62 | /** |
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| 63 | * name of the class that we are linking to. |
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| 64 | * |
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| 65 | * @var string |
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| 66 | */ |
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| 67 | protected $relationClassName = ''; |
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| 68 | |||
| 69 | /** |
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| 70 | * name of the sort field used |
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| 71 | * works with: |
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| 72 | * - UndefinedOffset\SortableGridField\Forms\GridFieldSortableRows. |
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| 73 | * |
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| 74 | * @var string |
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| 75 | */ |
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| 76 | protected $sortField = ''; |
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| 77 | |||
| 78 | /** |
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| 79 | * @var array|string |
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| 80 | */ |
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| 81 | protected $checkBoxSort; |
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| 82 | |||
| 83 | /** |
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| 84 | * heading above field. |
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| 85 | * |
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| 86 | * @var string |
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| 87 | */ |
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| 88 | protected $labelForField = ''; |
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| 89 | |||
| 90 | /** |
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| 91 | * name for Add - e.g. My Product resulting in a button "Add My Product". |
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| 92 | * |
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| 93 | * @var string |
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| 94 | */ |
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| 95 | protected $addLabel = ''; |
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| 96 | |||
| 97 | /** |
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| 98 | * should the relationship be editable in the form? |
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| 99 | * |
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| 100 | * @var bool |
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| 101 | */ |
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| 102 | protected $hasEditRelation = true; |
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| 103 | |||
| 104 | /** |
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| 105 | * can the link be removed? |
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| 106 | * |
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| 107 | * @var bool |
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| 108 | */ |
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| 109 | protected $hasUnlink = true; |
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| 110 | |||
| 111 | /** |
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| 112 | * can the linked item be deleted? |
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| 113 | * |
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| 114 | * @var bool |
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| 115 | */ |
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| 116 | protected $hasDelete = true; |
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| 117 | |||
| 118 | /** |
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| 119 | * can new items be added? |
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| 120 | * |
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| 121 | * @var bool |
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| 122 | */ |
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| 123 | protected $hasAdd = true; |
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| 124 | |||
| 125 | /** |
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| 126 | * can existing items be linked? |
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| 127 | * |
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| 128 | * @var bool |
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| 129 | */ |
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| 130 | protected $hasAddExisting = true; |
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| 131 | |||
| 132 | /** |
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| 133 | * @var int |
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| 134 | */ |
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| 135 | protected $maxItemsForCheckBoxSet = 300; |
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| 136 | |||
| 137 | /** |
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| 138 | * data columns. |
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| 139 | * |
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| 140 | * @var array |
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| 141 | */ |
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| 142 | protected $dataColumns = []; |
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| 143 | |||
| 144 | /** |
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| 145 | * data columns. |
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| 146 | * |
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| 147 | * @var array |
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| 148 | */ |
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| 149 | protected $searchFields = []; |
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| 150 | |||
| 151 | /** |
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| 152 | * data columns. |
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| 153 | * |
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| 154 | * @var string |
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| 155 | */ |
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| 156 | protected $searchOutputFormat = ''; |
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| 157 | |||
| 158 | /** |
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| 159 | * @var null|GridFieldConfig |
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| 160 | */ |
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| 161 | private $gridFieldConfig; |
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| 162 | |||
| 163 | /** |
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| 164 | * @var null|GridField |
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| 165 | */ |
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| 166 | private $gridField; |
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| 167 | |||
| 168 | /** |
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| 169 | * @var null|CheckboxSetFieldWithLinks |
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| 170 | */ |
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| 171 | private $checkboxSetField; |
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| 172 | |||
| 173 | /** |
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| 174 | * @var null|DataList |
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| 175 | */ |
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| 176 | private $dataListForCheckboxSetField; |
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| 177 | |||
| 178 | /** |
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| 179 | * provides a generic Grid Field for Many Many relations. |
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| 180 | * |
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| 181 | * @param DataObject $callingObject Name of the Relationship - e.g. MyWidgets |
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| 182 | * @param string $relationName Name of the Relationship - e.g. MyWidgets |
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| 183 | * |
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| 184 | * @return array |
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| 185 | */ |
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| 186 | public function __construct($callingObject, $relationName) |
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| 187 | { |
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| 188 | $this->callingObject = $callingObject; |
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| 189 | $this->relationName = $relationName; |
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| 190 | |||
| 191 | parent::__construct(); |
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| 192 | $this->checkIfFieldsHaveBeenBuilt(); |
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| 193 | } |
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| 194 | |||
| 195 | public function doBuild($force = false) |
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| 196 | { |
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| 197 | if ($this->listIsEmpty() || $force) { |
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| 198 | $this->getChildren(); |
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| 199 | } |
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| 200 | } |
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| 201 | |||
| 202 | public function setSortField(string $sortField): self |
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| 203 | { |
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| 204 | $this->checkIfFieldsHaveBeenBuilt(); |
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| 205 | $this->sortField = $sortField; |
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| 206 | |||
| 207 | return $this; |
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| 208 | } |
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| 209 | |||
| 210 | public function setCheckBoxSort($sortArrayOrString): self |
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| 216 | } |
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| 217 | |||
| 218 | public function setLabelForField(string $labelForField): self |
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| 219 | { |
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| 220 | $this->checkIfFieldsHaveBeenBuilt(); |
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| 221 | $this->labelForField = $labelForField; |
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| 222 | |||
| 223 | return $this; |
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| 224 | } |
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| 225 | |||
| 226 | public function setAddLabel(string $addLabel): self |
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| 227 | { |
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| 228 | $this->checkIfFieldsHaveBeenBuilt(); |
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| 229 | $this->addLabel = $addLabel; |
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| 230 | |||
| 231 | return $this; |
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| 232 | } |
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| 233 | |||
| 234 | public function setHasEditRelation(bool $hasEditRelation): self |
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| 235 | { |
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| 236 | $this->checkIfFieldsHaveBeenBuilt(); |
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| 237 | $this->hasEditRelation = $hasEditRelation; |
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| 238 | |||
| 239 | return $this; |
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| 240 | } |
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| 241 | |||
| 242 | public function setHasUnlink(bool $hasUnlink): self |
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| 243 | { |
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| 244 | $this->checkIfFieldsHaveBeenBuilt(); |
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| 245 | $this->hasUnlink = $hasUnlink; |
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| 246 | |||
| 247 | return $this; |
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| 248 | } |
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| 249 | |||
| 250 | public function setHasDelete(bool $hasDelete): self |
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| 251 | { |
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| 252 | $this->checkIfFieldsHaveBeenBuilt(); |
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| 253 | $this->hasDelete = $hasDelete; |
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| 254 | |||
| 255 | return $this; |
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| 256 | } |
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| 257 | |||
| 258 | public function setHasAdd(bool $hasAdd): self |
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| 259 | { |
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| 260 | $this->checkIfFieldsHaveBeenBuilt(); |
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| 261 | $this->hasAdd = $hasAdd; |
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| 262 | |||
| 263 | return $this; |
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| 264 | } |
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| 265 | |||
| 266 | public function setHasAddExisting(bool $hasAddExisting): self |
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| 267 | { |
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| 268 | $this->checkIfFieldsHaveBeenBuilt(); |
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| 269 | $this->hasAddExisting = $hasAddExisting; |
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| 270 | |||
| 271 | return $this; |
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| 272 | } |
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| 273 | |||
| 274 | public function setMaxItemsForCheckBoxSet(int $maxItemsForCheckBoxSet): self |
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| 275 | { |
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| 276 | $this->checkIfFieldsHaveBeenBuilt(); |
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| 277 | $this->maxItemsForCheckBoxSet = $maxItemsForCheckBoxSet; |
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| 278 | |||
| 279 | return $this; |
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| 280 | } |
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| 281 | |||
| 282 | public function setDataColumns(array $dataColumns): self |
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| 283 | { |
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| 284 | $this->checkIfFieldsHaveBeenBuilt(); |
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| 285 | $this->dataColumns = $dataColumns; |
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| 286 | |||
| 287 | return $this; |
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| 288 | } |
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| 289 | |||
| 290 | public function setSearchFields(array $searchFields): self |
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| 291 | { |
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| 292 | $this->checkIfFieldsHaveBeenBuilt(); |
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| 293 | $this->searchFields = $searchFields; |
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| 294 | |||
| 295 | return $this; |
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| 296 | } |
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| 297 | |||
| 298 | public function setSearchOutputFormat(string $searchOutputFormat): self |
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| 299 | { |
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| 300 | $this->searchOutputFormat = $searchOutputFormat; |
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| 301 | |||
| 302 | return $this; |
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| 303 | } |
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| 304 | |||
| 305 | public function setDataListForCheckboxSetField(DataList $list): self |
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| 306 | { |
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| 307 | $this->dataListForCheckboxSetField = $list; |
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| 308 | |||
| 309 | return $this; |
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| 310 | } |
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| 311 | |||
| 312 | public function getDetailedFields() |
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| 313 | { |
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| 314 | $this->doBuild(); |
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| 315 | $type = $this->getRelationClassName(); |
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| 316 | $obj = $type::create(); |
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| 317 | $defaultFields = $obj->getCMSFields(); |
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| 318 | |||
| 319 | $this->setDetailedFields($defaultFields); |
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| 320 | |||
| 321 | return $defaultFields; |
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| 322 | } |
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| 323 | |||
| 324 | public function setDetailedFields(FieldList $fields) |
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| 325 | { |
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| 326 | $this->doBuild(); |
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| 327 | $this->getDetailedForm()->setFields($fields); |
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| 328 | } |
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| 329 | |||
| 330 | /** |
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| 331 | * @return FieldList |
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| 332 | */ |
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| 333 | public function getChildren() |
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| 334 | { |
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| 335 | if ($this->listIsEmpty()) { |
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| 336 | $isVersioned = $this->isVersioned(); |
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| 337 | $hasCheckboxSet = $this->hasCheckboxSet(); |
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| 338 | $this->sortField = $this->getSortField(); |
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| 339 | $this->relationClassName = $this->getRelationClassName(); |
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| 340 | |||
| 341 | if ('' === $this->labelForField) { |
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| 342 | $fieldLabels = Injector::inst()->get($this->callingObject->ClassName)->fieldLabels(); |
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| 343 | $this->labelForField = $fieldLabels[$this->relationName] ?? $this->relationName; |
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| 344 | } |
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| 345 | |||
| 346 | $safeLabel = preg_replace('#[^A-Za-z0-9 ]#', '', (string) $this->labelForField); |
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| 347 | |||
| 348 | $this->getGridFieldConfig = $this->getGridFieldConfig(); |
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| 349 | |||
| 350 | if ($hasCheckboxSet) { |
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| 351 | $this->hasUnlink = false; |
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| 352 | $this->hasAddExisting = false; |
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| 353 | } |
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| 354 | |||
| 355 | $this->gridField = null; |
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| 356 | if ($this->hasGridField()) { |
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| 357 | $this->getGridFieldConfig->removeComponentsByType(GridField_ActionMenu::class); |
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| 358 | $this->gridField = GridField::create( |
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| 359 | $this->relationName . 'GridField', |
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| 360 | $this->labelForField, |
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| 361 | $this->callingObject->{$this->relationName}(), |
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| 362 | $this->getGridFieldConfig |
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| 363 | ); |
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| 364 | |||
| 365 | //we remove both - just in case the type is unknown. |
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| 366 | $this->getGridFieldConfig->removeComponentsByType(GridFieldArchiveAction::class); |
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| 367 | $this->getGridFieldConfig->removeComponentsByType(GridFieldDeleteAction::class); |
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| 368 | |||
| 369 | //deletes |
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| 370 | if ($this->hasDelete) { |
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| 371 | if ($isVersioned) { |
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| 372 | // $this->getGridFieldConfig->addComponent(new GridFieldArchiveAction()); |
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| 373 | // $this->getGridFieldConfig->addComponent(new GridFieldDeleteAction($unlink = false)); |
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| 374 | } else { |
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| 375 | $this->getGridFieldConfig->addComponent(new GridFieldDeleteAction($unlink = false)); |
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| 376 | } |
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| 377 | } elseif ($this->hasUnlink) { |
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| 378 | $this->getGridFieldConfig->addComponent(new GridFieldDeleteAction($unlink = true)); |
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| 379 | } |
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| 380 | |||
| 381 | if ($this->hasAdd) { |
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| 382 | if ('' !== $this->addLabel) { |
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| 383 | $this->getGridFieldConfig->getComponentsByType(GridFieldAddNewButton::class)->first()->setButtonName('Add ' . $this->addLabel); |
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| 384 | } |
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| 385 | } else { |
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| 386 | $this->getGridFieldConfig->removeComponentsByType(GridFieldAddNewButton::class); |
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| 387 | } |
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| 388 | |||
| 389 | if (! $this->hasAddExisting) { |
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| 390 | $this->getGridFieldConfig->removeComponentsByType(GridFieldAddExistingAutocompleter::class); |
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| 391 | } |
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| 392 | |||
| 393 | if ($hasCheckboxSet) { |
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| 394 | $this->gridField->setTitle('Added ' . $this->labelForField); |
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| 395 | } |
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| 396 | |||
| 397 | if ('' !== $this->sortField) { |
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| 398 | $classA = \UndefinedOffset\SortableGridField\Forms\GridFieldSortableRows::class; |
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| 399 | if (class_exists($classA)) { |
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| 400 | $this->getGridFieldConfig->addComponent($sorter = new $classA($this->sortField)); |
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| 401 | $sorter->setCustomRelationName($this->relationName); |
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| 402 | } |
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| 403 | } |
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| 404 | |||
| 405 | if ([] !== $this->dataColumns) { |
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| 406 | $dataColumns = $this->getGridFieldConfig->getComponentByType(GridFieldDataColumns::class); |
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| 407 | if ($dataColumns) { |
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| 408 | $dataColumns->setDisplayFields($this->dataColumns); |
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| 409 | } |
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| 410 | } |
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| 411 | |||
| 412 | if ([] !== $this->searchFields) { |
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| 413 | $autocompleter = $this->getGridFieldConfig->getComponentByType(GridFieldAddExistingAutocompleter::class); |
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| 414 | if ($autocompleter) { |
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| 415 | $autocompleter->setSearchFields($this->searchFields); |
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| 416 | } |
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| 417 | } |
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| 418 | |||
| 419 | if ('' !== $this->searchOutputFormat) { |
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| 420 | $autocompleter = $this->getGridFieldConfig->getComponentByType(GridFieldAddExistingAutocompleter::class); |
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| 421 | if ($autocompleter) { |
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| 422 | $autocompleter->setResultsFormat($this->searchOutputFormat); |
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| 423 | } |
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| 424 | } |
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| 425 | } |
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| 426 | |||
| 427 | $this->checkboxSetField = null; |
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| 428 | if ($hasCheckboxSet) { |
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| 429 | $className = $this->relationClassName; |
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| 430 | $obj = Injector::inst()->get($className); |
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| 431 | if (null === $this->dataListForCheckboxSetField) { |
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| 432 | $this->dataListForCheckboxSetField = $className::get(); |
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| 433 | } |
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| 434 | |||
| 435 | if ($this->dataListForCheckboxSetField && $this->checkBoxSort) { |
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| 436 | if (is_string($this->checkBoxSort)) { |
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| 437 | $this->dataListForCheckboxSetField = $this->dataListForCheckboxSetField->orderBy($this->checkBoxSort); |
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| 438 | } else { |
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| 439 | $this->dataListForCheckboxSetField = $this->dataListForCheckboxSetField->sort($this->checkBoxSort); |
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| 440 | } |
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| 441 | } |
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| 442 | |||
| 443 | if ($obj->hasMethod('getTitleForList')) { |
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| 444 | $list = $this->dataListForCheckboxSetField->map('ID', 'getTitleForList'); |
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| 445 | } else { |
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| 446 | $list = $this->dataListForCheckboxSetField->map('ID', 'Title'); |
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| 447 | } |
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| 448 | |||
| 449 | $this->checkboxSetField = CheckboxSetFieldWithLinks::create( |
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| 450 | $this->relationName, |
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| 451 | 'Add / Remove', |
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| 452 | $list |
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| 453 | )->setClassNameForLinks($this->relationClassName); |
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| 454 | } |
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| 455 | |||
| 456 | $fieldsArray = [ |
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| 457 | HeaderField::create($safeLabel . 'Header', $this->labelForField, 1), |
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| 458 | ]; |
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| 459 | if (null !== $this->gridField) { |
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| 460 | $fieldsArray[] = $this->gridField; |
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| 461 | } |
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| 462 | |||
| 463 | if (null !== $this->checkboxSetField) { |
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| 464 | $fieldsArray[] = $this->checkboxSetField; |
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| 465 | } |
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| 466 | |||
| 467 | $this->children = FieldList::create($fieldsArray); |
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| 468 | //important - as setChildren does more than just setting variable... |
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| 469 | $this->setChildren($this->children); |
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| 470 | } |
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| 471 | |||
| 472 | return $this->children; |
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| 473 | } |
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| 474 | |||
| 475 | public function getGridFieldConfig() |
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| 476 | { |
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| 477 | if (null === $this->gridFieldConfig) { |
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| 478 | $this->gridFieldConfig = GridFieldConfig_RelationEditor::create(); |
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| 479 | } |
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| 480 | |||
| 481 | return $this->gridFieldConfig; |
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| 482 | } |
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| 483 | |||
| 484 | public function getGritField() |
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| 485 | { |
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| 486 | return $this->gridField; |
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| 487 | } |
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| 488 | |||
| 489 | public function getCheckboxSetField() |
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| 490 | { |
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| 491 | return $this->checkboxSetField; |
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| 492 | } |
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| 493 | |||
| 494 | protected function listIsEmpty(): bool |
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| 495 | { |
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| 496 | return ! $this->children || ($this->children instanceof FieldList && ! $this->children->exists()); |
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| 497 | } |
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| 498 | |||
| 499 | protected function checkIfFieldsHaveBeenBuilt() |
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| 500 | { |
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| 501 | if ($this->listIsEmpty()) { |
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| 502 | //all good |
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| 503 | } else { |
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| 504 | user_error('There is an error in the sequence of your logic. The fields have already been built!'); |
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| 505 | } |
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| 506 | } |
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| 507 | |||
| 508 | /** |
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| 509 | * @return GridFieldDetailForm|VersionedGridFieldDetailForm |
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| 510 | */ |
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| 511 | protected function getDetailedForm() |
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| 512 | { |
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| 513 | $this->doBuild(); |
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| 514 | $this->getGridFieldConfig = $this->getGridFieldConfig(); |
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| 515 | |||
| 516 | return $this->getGridFieldConfig->getComponentByType(GridFieldDetailForm::class); |
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| 517 | } |
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| 518 | |||
| 519 | private function getRelationClassName(): string |
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| 520 | { |
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| 521 | if ('' === $this->relationClassName) { |
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| 522 | $hasMany = Config::inst()->get($this->callingObject->ClassName, 'has_many'); |
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| 523 | $manyMany = Config::inst()->get($this->callingObject->ClassName, 'many_many'); |
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| 524 | $belongsManyMany = Config::inst()->get($this->callingObject->ClassName, 'belongs_many_many'); |
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| 525 | foreach ([ |
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| 526 | $hasMany, |
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| 527 | $manyMany, |
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| 528 | $belongsManyMany, |
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| 529 | ] as $types) { |
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| 530 | if (isset($types[$this->relationName])) { |
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| 531 | $typeOptions = $types[$this->relationName]; |
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| 532 | $typeArray = explode('.', $typeOptions); |
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| 533 | $this->relationClassName = $typeArray[0]; |
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| 534 | |||
| 535 | break; |
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| 536 | } |
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| 537 | } |
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| 538 | } |
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| 539 | |||
| 540 | if ($this->relationClassName && class_exists($this->relationClassName)) { |
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| 541 | return $this->relationClassName; |
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| 542 | } |
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| 543 | |||
| 544 | user_error('Can not find related class: ' . $this->relationClassName); |
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| 545 | |||
| 546 | return 'error'; |
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| 547 | } |
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| 548 | |||
| 549 | private function isVersioned(): bool |
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| 550 | { |
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| 551 | $this->relationClassName = $this->getRelationClassName(); |
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| 552 | $foreignSingleton = Injector::inst()->get($this->relationClassName); |
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| 553 | |||
| 554 | return (bool) $foreignSingleton->hasExtension(Versioned::class); |
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| 555 | } |
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| 556 | |||
| 557 | private function hasCheckboxSet(): bool |
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| 558 | { |
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| 559 | if ($this->callingObject->canEdit()) { |
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| 560 | $this->relationClassName = $this->getRelationClassName(); |
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| 561 | $className = $this->relationClassName; |
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| 562 | |||
| 563 | return $className::get()->count() < $this->maxItemsForCheckBoxSet; |
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| 564 | } |
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| 565 | |||
| 566 | return false; |
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| 567 | } |
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| 568 | |||
| 569 | private function hasGridField(): bool |
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| 570 | { |
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| 571 | //do we need it to edit the relationship? |
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| 572 | if ($this->hasEditRelation || $this->hasDelete || $this->hasAdd || $this->sortField) { |
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| 573 | return true; |
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| 574 | } |
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| 575 | |||
| 576 | // do we need it because we do not have a checkboxset? |
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| 577 | //we can go without! |
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| 578 | return ! $this->hasCheckboxSet(); |
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| 579 | } |
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| 580 | |||
| 581 | private function getSortField(): string |
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| 596 | } |
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| 597 | } |
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| 598 |
This check looks for calls to methods that do not seem to exist on a given type. It looks for the method on the type itself as well as in inherited classes or implemented interfaces.
This is most likely a typographical error or the method has been renamed.