mirror of
https://gitlab.crans.org/bde/nk20
synced 2024-12-25 17:02:22 +00:00
250 lines
13 KiB
JavaScript
250 lines
13 KiB
JavaScript
/**
|
|
* jQuery Formset 1.5-pre
|
|
* @author Stanislaus Madueke (stan DOT madueke AT gmail DOT com)
|
|
* @requires jQuery 1.2.6 or later
|
|
*
|
|
* Copyright (c) 2009, Stanislaus Madueke
|
|
* All rights reserved.
|
|
*
|
|
* Licensed under the New BSD License
|
|
* See: http://www.opensource.org/licenses/bsd-license.php
|
|
*/
|
|
;(function($) {
|
|
$.fn.formset = function(opts)
|
|
{
|
|
var options = $.extend({}, $.fn.formset.defaults, opts),
|
|
flatExtraClasses = options.extraClasses.join(' '),
|
|
totalForms = $('#id_' + options.prefix + '-TOTAL_FORMS'),
|
|
maxForms = $('#id_' + options.prefix + '-MAX_NUM_FORMS'),
|
|
minForms = $('#id_' + options.prefix + '-MIN_NUM_FORMS'),
|
|
childElementSelector = 'input,select,textarea,label,div',
|
|
$$ = $(this),
|
|
|
|
applyExtraClasses = function(row, ndx) {
|
|
if (options.extraClasses) {
|
|
row.removeClass(flatExtraClasses);
|
|
row.addClass(options.extraClasses[ndx % options.extraClasses.length]);
|
|
}
|
|
},
|
|
|
|
updateElementIndex = function(elem, prefix, ndx) {
|
|
var idRegex = new RegExp(prefix + '-(\\d+|__prefix__)-'),
|
|
replacement = prefix + '-' + ndx + '-';
|
|
if (elem.attr("for")) elem.attr("for", elem.attr("for").replace(idRegex, replacement));
|
|
if (elem.attr('id')) elem.attr('id', elem.attr('id').replace(idRegex, replacement));
|
|
if (elem.attr('name')) elem.attr('name', elem.attr('name').replace(idRegex, replacement));
|
|
},
|
|
|
|
hasChildElements = function(row) {
|
|
return row.find(childElementSelector).length > 0;
|
|
},
|
|
|
|
showAddButton = function() {
|
|
return maxForms.length == 0 || // For Django versions pre 1.2
|
|
(maxForms.val() == '' || (maxForms.val() - totalForms.val() > 0));
|
|
},
|
|
|
|
/**
|
|
* Indicates whether delete link(s) can be displayed - when total forms > min forms
|
|
*/
|
|
showDeleteLinks = function() {
|
|
return minForms.length == 0 || // For Django versions pre 1.7
|
|
(minForms.val() == '' || (totalForms.val() - minForms.val() > 0));
|
|
},
|
|
|
|
insertDeleteLink = function(row) {
|
|
var delCssSelector = $.trim(options.deleteCssClass).replace(/\s+/g, '.'),
|
|
addCssSelector = $.trim(options.addCssClass).replace(/\s+/g, '.');
|
|
|
|
var delButtonHTML = '<a class="' + options.deleteCssClass + '" href="javascript:void(0)">' + options.deleteText +'</a>';
|
|
if (options.deleteContainerClass) {
|
|
// If we have a specific container for the remove button,
|
|
// place it as the last child of that container:
|
|
row.find('[class*="' + options.deleteContainerClass + '"]').append(delButtonHTML);
|
|
} else if (row.is('TR')) {
|
|
// If the forms are laid out in table rows, insert
|
|
// the remove button into the last table cell:
|
|
row.children('td:last').append(delButtonHTML);
|
|
} else if (row.is('UL') || row.is('OL')) {
|
|
// If they're laid out as an ordered/unordered list,
|
|
// insert an <li> after the last list item:
|
|
row.append('<li>' + delButtonHTML + '</li>');
|
|
} else {
|
|
// Otherwise, just insert the remove button as the
|
|
// last child element of the form's container:
|
|
row.append(delButtonHTML);
|
|
}
|
|
|
|
// Check if we're under the minimum number of forms - not to display delete link at rendering
|
|
if (!showDeleteLinks()){
|
|
row.find('a.' + delCssSelector).hide();
|
|
}
|
|
|
|
row.find('a.' + delCssSelector).click(function() {
|
|
var row = $(this).parents('.' + options.formCssClass),
|
|
del = row.find('input:hidden[id $= "-DELETE"]'),
|
|
buttonRow = row.siblings("a." + addCssSelector + ', .' + options.formCssClass + '-add'),
|
|
forms;
|
|
if (del.length) {
|
|
// We're dealing with an inline formset.
|
|
// Rather than remove this form from the DOM, we'll mark it as deleted
|
|
// and hide it, then let Django handle the deleting:
|
|
del.val('on');
|
|
row.hide();
|
|
forms = $('.' + options.formCssClass).not(':hidden');
|
|
} else {
|
|
row.remove();
|
|
// Update the TOTAL_FORMS count:
|
|
forms = $('.' + options.formCssClass).not('.formset-custom-template');
|
|
totalForms.val(forms.length);
|
|
}
|
|
for (var i=0, formCount=forms.length; i<formCount; i++) {
|
|
// Apply `extraClasses` to form rows so they're nicely alternating:
|
|
applyExtraClasses(forms.eq(i), i);
|
|
if (!del.length) {
|
|
// Also update names and IDs for all child controls (if this isn't
|
|
// a delete-able inline formset) so they remain in sequence:
|
|
forms.eq(i).find(childElementSelector).each(function() {
|
|
updateElementIndex($(this), options.prefix, i);
|
|
});
|
|
}
|
|
}
|
|
// Check if we've reached the minimum number of forms - hide all delete link(s)
|
|
if (!showDeleteLinks()){
|
|
$('a.' + delCssSelector).each(function(){$(this).hide();});
|
|
}
|
|
// Check if we need to show the add button:
|
|
if (buttonRow.is(':hidden') && showAddButton()) buttonRow.show();
|
|
// If a post-delete callback was provided, call it with the deleted form:
|
|
if (options.removed) options.removed(row);
|
|
return false;
|
|
});
|
|
};
|
|
|
|
$$.each(function(i) {
|
|
var row = $(this),
|
|
del = row.find('input:checkbox[id $= "-DELETE"]');
|
|
if (del.length) {
|
|
// If you specify "can_delete = True" when creating an inline formset,
|
|
// Django adds a checkbox to each form in the formset.
|
|
// Replace the default checkbox with a hidden field:
|
|
if (del.is(':checked')) {
|
|
// If an inline formset containing deleted forms fails validation, make sure
|
|
// we keep the forms hidden (thanks for the bug report and suggested fix Mike)
|
|
del.before('<input type="hidden" name="' + del.attr('name') +'" id="' + del.attr('id') +'" value="on" />');
|
|
row.hide();
|
|
} else {
|
|
del.before('<input type="hidden" name="' + del.attr('name') +'" id="' + del.attr('id') +'" />');
|
|
}
|
|
// Hide any labels associated with the DELETE checkbox:
|
|
$('label[for="' + del.attr('id') + '"]').hide();
|
|
del.remove();
|
|
}
|
|
if (hasChildElements(row)) {
|
|
row.addClass(options.formCssClass);
|
|
if (row.is(':visible')) {
|
|
insertDeleteLink(row);
|
|
applyExtraClasses(row, i);
|
|
}
|
|
}
|
|
});
|
|
|
|
if ($$.length) {
|
|
var hideAddButton = !showAddButton(),
|
|
addButton, template;
|
|
if (options.formTemplate) {
|
|
// If a form template was specified, we'll clone it to generate new form instances:
|
|
template = (options.formTemplate instanceof $) ? options.formTemplate : $(options.formTemplate);
|
|
template.removeAttr('id').addClass(options.formCssClass + ' formset-custom-template');
|
|
template.find(childElementSelector).each(function() {
|
|
updateElementIndex($(this), options.prefix, '__prefix__');
|
|
});
|
|
insertDeleteLink(template);
|
|
} else {
|
|
// Otherwise, use the last form in the formset; this works much better if you've got
|
|
// extra (>= 1) forms (thnaks to justhamade for pointing this out):
|
|
if (options.hideLastAddForm) $('.' + options.formCssClass + ':last').hide();
|
|
template = $('.' + options.formCssClass + ':last').clone(true).removeAttr('id');
|
|
template.find('input:hidden[id $= "-DELETE"]').remove();
|
|
// Clear all cloned fields, except those the user wants to keep (thanks to brunogola for the suggestion):
|
|
template.find(childElementSelector).not(options.keepFieldValues).each(function() {
|
|
var elem = $(this);
|
|
// If this is a checkbox or radiobutton, uncheck it.
|
|
// This fixes Issue 1, reported by Wilson.Andrew.J:
|
|
if (elem.is('input:checkbox') || elem.is('input:radio')) {
|
|
elem.attr('checked', false);
|
|
} else {
|
|
elem.val('');
|
|
}
|
|
});
|
|
}
|
|
// FIXME: Perhaps using $.data would be a better idea?
|
|
options.formTemplate = template;
|
|
|
|
var addButtonHTML = '<a class="' + options.addCssClass + '" href="javascript:void(0)">' + options.addText + '</a>';
|
|
if (options.addContainerClass) {
|
|
// If we have a specific container for the "add" button,
|
|
// place it as the last child of that container:
|
|
var addContainer = $('[class*="' + options.addContainerClass + '"');
|
|
addContainer.append(addButtonHTML);
|
|
addButton = addContainer.find('[class="' + options.addCssClass + '"]');
|
|
} else if ($$.is('TR')) {
|
|
// If forms are laid out as table rows, insert the
|
|
// "add" button in a new table row:
|
|
var numCols = $$.eq(0).children().length, // This is a bit of an assumption :|
|
|
buttonRow = $('<tr><td colspan="' + numCols + '">' + addButtonHTML + '</tr>').addClass(options.formCssClass + '-add');
|
|
$$.parent().append(buttonRow);
|
|
addButton = buttonRow.find('a');
|
|
} else {
|
|
// Otherwise, insert it immediately after the last form:
|
|
$$.filter(':last').after(addButtonHTML);
|
|
addButton = $$.filter(':last').next();
|
|
}
|
|
|
|
if (hideAddButton) addButton.hide();
|
|
|
|
addButton.click(function() {
|
|
var formCount = parseInt(totalForms.val()),
|
|
row = options.formTemplate.clone(true).removeClass('formset-custom-template'),
|
|
buttonRow = $($(this).parents('tr.' + options.formCssClass + '-add').get(0) || this),
|
|
delCssSelector = $.trim(options.deleteCssClass).replace(/\s+/g, '.');
|
|
applyExtraClasses(row, formCount);
|
|
row.insertBefore(buttonRow).show();
|
|
row.find(childElementSelector).each(function() {
|
|
updateElementIndex($(this), options.prefix, formCount);
|
|
});
|
|
totalForms.val(formCount + 1);
|
|
// Check if we're above the minimum allowed number of forms -> show all delete link(s)
|
|
if (showDeleteLinks()){
|
|
$('a.' + delCssSelector).each(function(){$(this).show();});
|
|
}
|
|
// Check if we've exceeded the maximum allowed number of forms:
|
|
if (!showAddButton()) buttonRow.hide();
|
|
// If a post-add callback was supplied, call it with the added form:
|
|
if (options.added) options.added(row);
|
|
return false;
|
|
});
|
|
}
|
|
|
|
return $$;
|
|
};
|
|
|
|
/* Setup plugin defaults */
|
|
$.fn.formset.defaults = {
|
|
prefix: 'form', // The form prefix for your django formset
|
|
formTemplate: null, // The jQuery selection cloned to generate new form instances
|
|
addText: 'add another', // Text for the add link
|
|
deleteText: 'remove', // Text for the delete link
|
|
addContainerClass: null, // Container CSS class for the add link
|
|
deleteContainerClass: null, // Container CSS class for the delete link
|
|
addCssClass: 'add-row', // CSS class applied to the add link
|
|
deleteCssClass: 'delete-row', // CSS class applied to the delete link
|
|
formCssClass: 'dynamic-form', // CSS class applied to each form in a formset
|
|
extraClasses: [], // Additional CSS classes, which will be applied to each form in turn
|
|
keepFieldValues: '', // jQuery selector for fields whose values should be kept when the form is cloned
|
|
added: null, // Function called each time a new form is added
|
|
removed: null, // Function called each time a form is deleted
|
|
hideLastAddForm: false // When set to true, hide last empty add form (becomes visible when clicking on add button)
|
|
};
|
|
})(jQuery);
|