Laravel-Backpack /
CRUD
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| 1 | <?php |
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| 5 | trait Fields |
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| 6 | { |
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| 7 | // ------------ |
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| 8 | // FIELDS |
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| 9 | // ------------ |
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| 10 | |||
| 11 | /** |
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| 12 | * Add a field to the create/update form or both. |
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| 13 | * |
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| 14 | * @param string $form The form to add the field to (create/update/both) |
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| 15 | */ |
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| 16 | public function addField($field, $form = 'both') |
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| 52 | |||
| 53 | public function addFields($fields, $form = 'both') |
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| 61 | |||
| 62 | /** |
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| 63 | * Remove a certain field from the create/update/both forms by its name. |
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| 64 | * |
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| 65 | * @param string $name Field name (as defined with the addField() procedure) |
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| 66 | * @param string $form update/create/both |
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| 67 | */ |
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| 68 | public function removeField($name, $form = 'both') |
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| 85 | |||
| 86 | /** |
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| 87 | * Remove many fields from the create/update/both forms by their name. |
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| 88 | * |
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| 89 | * @param array $array_of_names A simple array of the names of the fields to be removed. |
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| 90 | * @param string $form update/create/both |
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| 91 | */ |
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| 92 | public function removeFields($array_of_names, $form = 'both') |
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| 100 | |||
| 101 | /** |
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| 102 | * Check if field is the first of its type in the given fields array. |
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| 103 | * It's used in each field_type.blade.php to determine wether to push the css and js content or not (we only need to push the js and css for a field the first time it's loaded in the form, not any subsequent times). |
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| 104 | * |
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| 105 | * @param array $field The current field being tested if it's the first of its type. |
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| 106 | * @param array $fields_array All the fields in that particular form. |
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| 107 | * |
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| 108 | * @return bool true/false |
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| 109 | */ |
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| 110 | public function checkIfFieldIsFirstOfItsType($field, $fields_array) |
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| 118 | |||
| 119 | /** |
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| 120 | * Order the fields in a certain way. |
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| 121 | * |
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| 122 | * @param [string] Column name. |
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| 123 | * @param [attributes and values array] |
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| 124 | */ |
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| 125 | public function setFieldOrder($fields) |
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| 129 | |||
| 130 | // ALIAS of setFieldOrder($fields) |
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| 131 | public function setFieldsOrder($fields) |
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| 135 | |||
| 136 | // ------------ |
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| 137 | // TONE FUNCTIONS - UNDOCUMENTED, UNTESTED, SOME MAY BE USED |
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| 138 | // ------------ |
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| 139 | // TODO: check them |
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| 140 | |||
| 141 | public function orderFields($order) |
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| 145 | |||
| 146 | public function mutateFieldData($data, $fields) |
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| 164 | } |
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| 165 |
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Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.
Let’s take a look at an example:
As you can see in this example, the array
$myArrayis initialized the first time when the foreach loop is entered. You can also see that the value of thebarkey is only written conditionally; thus, its value might result from a previous iteration.This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.