92 lines
3.4 KiB
JavaScript
92 lines
3.4 KiB
JavaScript
ajax_filtered_fields = {
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request_url: "/ajax_filtered_fields/json_index/",
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data_loaded: "data_loaded",
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_appendOption: function(obj, selector) {
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// append a json data row as an option to the selector
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var option = $('<option>' + obj[1] + '</option>');
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option.attr({value: obj[0]});
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option.appendTo(selector);
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return option;
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},
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_removeOptions: function(selector) {
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// remove all options from selector
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selector.children("option").each(function(i) {
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$(this).remove();
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});
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},
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getManyToManyJSON: function(element_id, app_label, object_name,
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lookup_string, select_related) {
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// manage the ManyToMany ajax request
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var selector_from = $("#" + element_id + "_from");
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var selector_to = $("#" + element_id + "_to");
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$("#" + element_id + "_input").val("");
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selector_from.attr("disabled", true);
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selector_to.attr("disabled", true);
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this._removeOptions(selector_from);
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$.getJSON(this.request_url, {
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app_label: app_label,
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object_name: object_name,
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lookup_string: lookup_string,
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select_related: select_related},
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function(data){
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$.each(data, function(i, obj){
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var option_is_selected = selector_to.children("option[value='" + obj[0] + "']").length;
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if (!option_is_selected) {
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ajax_filtered_fields._appendOption(obj, selector_from);
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};
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});
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SelectBox.init(element_id + "_from");
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selector_from.attr("disabled", false);
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selector_to.attr("disabled", false);
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selector_from.trigger(ajax_filtered_fields.data_loaded);
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});
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},
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getForeignKeyJSON: function(element_id, app_label, object_name,
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lookup_string, select_related) {
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// manage the ForeignKey ajax request
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var selector = $("#" + element_id);
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var hidden = $("#hidden-" + element_id);
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$("#" + element_id + "_input").val("");
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selector.attr("disabled", true);
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this._removeOptions(selector);
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$.getJSON(this.request_url, {
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app_label: app_label,
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object_name: object_name,
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lookup_string: lookup_string,
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select_related: select_related},
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function(data){
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var selection = hidden.val();
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ajax_filtered_fields._appendOption(new Array("", "---------"), selector);
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$.each(data, function(i, obj){
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ajax_filtered_fields._appendOption(obj, selector);
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});
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selector.children("option[value='" + selection + "']").attr("selected", "selected");
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selector.attr("disabled", false);
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SelectBox.init(element_id);
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ajax_filtered_fields.bindForeignKeyOptions(element_id);
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selector.trigger(ajax_filtered_fields.data_loaded);
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});
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},
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bindForeignKeyOptions: function(element_id) {
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// bind the dummy options to the hidden field that do the work
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var selector = $("#" + element_id);
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var hidden = $("#hidden-" + element_id);
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selector.change(function(e) {
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hidden.val($(this).val());
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});
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}
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};
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