prepopulate.js
43 lines
| 1.5 KiB
| application/javascript
|
JavascriptLexer
| r338 | /*global URLify*/ | |||
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r367 | 'use strict'; | ||
| { | ||||
| const $ = django.jQuery; | ||||
| r338 | $.fn.prepopulate = function(dependencies, maxLength, allowUnicode) { | |||
| /* | ||||
| Depends on urlify.js | ||||
| Populates a selected field with the values of the dependent fields, | ||||
| URLifies and shortens the string. | ||||
| dependencies - array of dependent fields ids | ||||
| maxLength - maximum length of the URLify'd string | ||||
| allowUnicode - Unicode support of the URLify'd string | ||||
| */ | ||||
| return this.each(function() { | ||||
|
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r367 | const prepopulatedField = $(this); | ||
| r338 | ||||
|
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r367 | const populate = function() { | ||
| r338 | // Bail if the field's value has been changed by the user | |||
| if (prepopulatedField.data('_changed')) { | ||||
| return; | ||||
| } | ||||
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r367 | const values = []; | ||
| r338 | $.each(dependencies, function(i, field) { | |||
| field = $(field); | ||||
| if (field.val().length > 0) { | ||||
| values.push(field.val()); | ||||
| } | ||||
| }); | ||||
| prepopulatedField.val(URLify(values.join(' '), maxLength, allowUnicode)); | ||||
| }; | ||||
| prepopulatedField.data('_changed', false); | ||||
| prepopulatedField.on('change', function() { | ||||
| prepopulatedField.data('_changed', true); | ||||
| }); | ||||
| if (!prepopulatedField.val()) { | ||||
| $(dependencies.join(',')).on('keyup change focus', populate); | ||||
| } | ||||
| }); | ||||
| }; | ||||
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r367 | } | ||
