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dynamic-choices-admin.js
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dynamic-choices-admin.js
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($ || jQuery || django.jQuery)(function($) {
var assignOptions = $.fn.updateFields.widgetHandlers['default'];
var filteredSelectMultiple = 'django.contrib.admin.widgets.FilteredSelectMultiple';
$.fn.updateFields.widgetHandlers[filteredSelectMultiple] = function(field, values) {
var chosenField = $(field),
alreadyChosens = $(field.options).map(function(index, element) {
return element.value;
}),
availableField = $('#id_' + field.name + '_from'),
fromCache = [],
toCache = [],
availables = [],
chosens = [];
//The widget isn't initialized yet (it might a be an inline empty template)
if (availableField.length == 0) {
return assignOptions(chosenField, values);
}
SelectBox.cache['id_' + field.name + '_from'] = [];
SelectBox.cache['id_' + field.name + '_to'] = [];
availableField.empty();
chosenField.empty();
$(values).each(function(index, value) {
//We cast the value to string since the "type" is lost when retreiving
//from option.value by SelectBox
var chosen = $.inArray(String(value[0]), alreadyChosens) != -1;
(chosen ? chosens : availables).push(value);
(chosen ? toCache : fromCache).push({
value: value[0],
text: value[1],
displayed: 1
});
});
SelectBox.cache['id_' + field.name + '_from'] = fromCache;
SelectBox.cache['id_' + field.name + '_to'] = toCache;
assignOptions(availableField, availables);
assignOptions(chosenField, chosens);
};
django.dynamicAdmin = function(fields, inlines) {
var url = document.location.pathname + 'choices/';
for (f in fields) {
$(f).bindFields(url, fields[f].join(', '));
}
for (f in inlines) {
$('#' + f + '-group').bindFieldset(url, f, inlines[f]);
}
};
var DATA_ORIGINAL_HREF = 'data-original-href';
function getAddLink(element) {
var addLink = $('#add_' + element.id);
if (!addLink.length) throw new Error('Cannot find add link of field ' + element.id);
return addLink;
};
function prepareAddLink(element) {
var addLink = getAddLink(element);
addLink.attr(DATA_ORIGINAL_HREF, addLink.attr('href'));
};
function updateAddLink(element, fields, fieldsetFields, parametersCallback) {
var addLink = getAddLink(element),
parameters = {},
encodedParameters = [];
$(fields).each(function(index, field) {
var name = $(field).attr('name'),
value = $(field).val();
if (value) parameters[name] = value;
});
$(fieldsetFields).each(function(index, field) {
var name = inlineField(field).name,
value = $(field).val();
if (value) parameters[name] = value;
});
if ($.isFunction(parametersCallback)) parameters = parametersCallback(parameters);
for (var name in parameters) {
encodedParameters.push([encodeURI(name), encodeURI(parameters[name])].join('='));
}
$(addLink).attr('href', addLink.attr(DATA_ORIGINAL_HREF) + '?' + encodedParameters.join('&'));
};
django.dynamicAdmin.bindFieldsAddLink = function(field, fields, parametersCallback) {
$(field).each(function(index, element) {
try {
prepareAddLink(element);
} catch (e) {
return
}
$(fields).change(function() {
updateAddLink(element, fields, null, parametersCallback);
});
updateAddLink(element, fields, null, parametersCallback);
});
};
function inlineField(field) {
var field = $(field).attr('name').split('-');
return {
fieldset: field[0],
index: field[1],
name: field[2]
}
};
function buildInlineFieldSelector(fieldName) {
return '[name$="' + fieldName + '"]';
};
function buildInlineFieldId(formsetName, fieldName, fieldIndex) {
return '#id_' + formsetName + '-' + fieldIndex + '-' + fieldName;
};
function buildFormsetFieldsSelector(formsetName, fields, fieldIndex) {
return $(fields).map(function(index, field) {
return buildInlineFieldId(formsetName, field, fieldIndex);
}).toArray().join(', ');
};
django.dynamicAdmin.bindFormsetFieldsAddLink = function(formset, field, boundFormsetFields, boundFormFieldsSelector, parametersCallback) {
boundFormsetFields = boundFormsetFields || [];
boundFormFieldsSelector = boundFormFieldsSelector || '';
var fieldSelector = buildInlineFieldSelector(field);
$(formset).each(function(index, formset) {
var formsetName = formset.id.match(/^(\w+)-group$/)[1]
boundFieldsetFieldsSelector = $(boundFormsetFields)
.map(function(i, e) {
return buildInlineFieldSelector(e)
})
.toArray().join(', ');
var fields = $(formset).find(fieldSelector).map(function(index, element) {
try {
prepareAddLink(element)
} catch (e) {
return false
};
var index = inlineField(element).index;
updateAddLink(element,
boundFormFieldsSelector,
buildFormsetFieldsSelector(formsetName, boundFormsetFields, index),
parametersCallback);
return true;
}).toArray();
if ($.inArray(true, fields) == -1) return;
$(formset).delegate(boundFieldsetFieldsSelector, 'change', function(event) {
var index = inlineField(event.target).index;
updateAddLink($(buildInlineFieldId(formsetName, field, index))[0],
boundFormFieldsSelector,
buildFormsetFieldsSelector(formsetName, boundFormsetFields, index),
parametersCallback);
});
$(boundFormFieldsSelector).change(function(event) {
$(formset).find(fieldSelector).each(function(index, element) {
var index = inlineField(element).index;
updateAddLink(element,
boundFormFieldsSelector,
buildFormsetFieldsSelector(formsetName, boundFormsetFields, index),
parametersCallback);
});
});
});
};
// Creating new instance within the admin doesn't trigger the change event on select fields.
// Attempt to trigger it correcly.
var originalDismissAddAnotherPopup = dismissAddAnotherPopup;
dismissAddAnotherPopup = function(win, newId, newRepr) {
originalDismissAddAnotherPopup(win, newId, newRepr);
newId = html_unescape(newId);
newRepr = html_unescape(newRepr);
var id = windowname_to_id(win.name);
$('#' + id).trigger('change');
};
dismissAddAnotherPopup.original = originalDismissAddAnotherPopup;
});