/
RelatedObjectLookups.js
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/
RelatedObjectLookups.js
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/*global SelectBox, interpolate*/
// Handles related-objects functionality: lookup link for raw_id_fields
// and Add Another links.
'use strict';
{
const $ = django.jQuery;
let popupIndex = 0;
const relatedWindows = [];
function dismissChildPopups() {
relatedWindows.forEach(function(win) {
if(!win.closed) {
win.dismissChildPopups();
win.close();
}
});
}
function setPopupIndex() {
if(document.getElementsByName("_popup").length > 0) {
const index = window.name.lastIndexOf("__") + 2;
popupIndex = parseInt(window.name.substring(index));
} else {
popupIndex = 0;
}
}
function addPopupIndex(name) {
return name + "__" + (popupIndex + 1);
}
function removePopupIndex(name) {
return name.replace(new RegExp("__" + (popupIndex + 1) + "$"), '');
}
function showAdminPopup(triggeringLink, name_regexp, add_popup) {
const name = addPopupIndex(triggeringLink.id.replace(name_regexp, ''));
const href = new URL(triggeringLink.href);
if (add_popup) {
href.searchParams.set('_popup', 1);
}
const win = window.open(href, name, 'height=500,width=800,resizable=yes,scrollbars=yes');
relatedWindows.push(win);
win.focus();
return false;
}
function showRelatedObjectLookupPopup(triggeringLink) {
return showAdminPopup(triggeringLink, /^lookup_/, true);
}
function dismissRelatedLookupPopup(win, chosenId) {
const name = removePopupIndex(win.name);
const elem = document.getElementById(name);
if (elem.classList.contains('vManyToManyRawIdAdminField') && elem.value) {
elem.value += ',' + chosenId;
} else {
document.getElementById(name).value = chosenId;
}
const index = relatedWindows.indexOf(win);
if (index > -1) {
relatedWindows.splice(index, 1);
}
win.close();
}
function showRelatedObjectPopup(triggeringLink) {
return showAdminPopup(triggeringLink, /^(change|add|delete)_/, false);
}
function updateRelatedObjectLinks(triggeringLink) {
const $this = $(triggeringLink);
const siblings = $this.nextAll('.view-related, .change-related, .delete-related');
if (!siblings.length) {
return;
}
const value = $this.val();
if (value) {
siblings.each(function() {
const elm = $(this);
elm.attr('href', elm.attr('data-href-template').replace('__fk__', value));
elm.removeAttr('aria-disabled');
});
} else {
siblings.removeAttr('href');
siblings.attr('aria-disabled', true);
}
}
function updateRelatedSelectsOptions(currentSelect, win, objId, newRepr, newId) {
// After create/edit a model from the options next to the current
// select (+ or :pencil:) update ForeignKey PK of the rest of selects
// in the page.
const path = win.location.pathname;
// Extract the model from the popup url '.../<model>/add/' or
// '.../<model>/<id>/change/' depending the action (add or change).
const modelName = path.split('/')[path.split('/').length - (objId ? 4 : 3)];
// Exclude autocomplete selects.
const selectsRelated = document.querySelectorAll(`[data-model-ref="${modelName}"] select:not(.admin-autocomplete)`);
selectsRelated.forEach(function(select) {
if (currentSelect === select) {
return;
}
let option = select.querySelector(`option[value="${objId}"]`);
if (!option) {
option = new Option(newRepr, newId);
select.options.add(option);
return;
}
option.textContent = newRepr;
option.value = newId;
});
}
function dismissAddRelatedObjectPopup(win, newId, newRepr) {
const name = removePopupIndex(win.name);
const elem = document.getElementById(name);
if (elem) {
const elemName = elem.nodeName.toUpperCase();
if (elemName === 'SELECT') {
elem.options[elem.options.length] = new Option(newRepr, newId, true, true);
updateRelatedSelectsOptions(elem, win, null, newRepr, newId);
} else if (elemName === 'INPUT') {
if (elem.classList.contains('vManyToManyRawIdAdminField') && elem.value) {
elem.value += ',' + newId;
} else {
elem.value = newId;
}
}
// Trigger a change event to update related links if required.
$(elem).trigger('change');
} else {
const toId = name + "_to";
const o = new Option(newRepr, newId);
SelectBox.add_to_cache(toId, o);
SelectBox.redisplay(toId);
}
const index = relatedWindows.indexOf(win);
if (index > -1) {
relatedWindows.splice(index, 1);
}
win.close();
}
function dismissChangeRelatedObjectPopup(win, objId, newRepr, newId) {
const id = removePopupIndex(win.name.replace(/^edit_/, ''));
const selectsSelector = interpolate('#%s, #%s_from, #%s_to', [id, id, id]);
const selects = $(selectsSelector);
selects.find('option').each(function() {
if (this.value === objId) {
this.textContent = newRepr;
this.value = newId;
}
}).trigger('change');
updateRelatedSelectsOptions(selects[0], win, objId, newRepr, newId);
selects.next().find('.select2-selection__rendered').each(function() {
// The element can have a clear button as a child.
// Use the lastChild to modify only the displayed value.
this.lastChild.textContent = newRepr;
this.title = newRepr;
});
const index = relatedWindows.indexOf(win);
if (index > -1) {
relatedWindows.splice(index, 1);
}
win.close();
}
function dismissDeleteRelatedObjectPopup(win, objId) {
const id = removePopupIndex(win.name.replace(/^delete_/, ''));
const selectsSelector = interpolate('#%s, #%s_from, #%s_to', [id, id, id]);
const selects = $(selectsSelector);
selects.find('option').each(function() {
if (this.value === objId) {
$(this).remove();
}
}).trigger('change');
const index = relatedWindows.indexOf(win);
if (index > -1) {
relatedWindows.splice(index, 1);
}
win.close();
}
window.showRelatedObjectLookupPopup = showRelatedObjectLookupPopup;
window.dismissRelatedLookupPopup = dismissRelatedLookupPopup;
window.showRelatedObjectPopup = showRelatedObjectPopup;
window.updateRelatedObjectLinks = updateRelatedObjectLinks;
window.dismissAddRelatedObjectPopup = dismissAddRelatedObjectPopup;
window.dismissChangeRelatedObjectPopup = dismissChangeRelatedObjectPopup;
window.dismissDeleteRelatedObjectPopup = dismissDeleteRelatedObjectPopup;
window.dismissChildPopups = dismissChildPopups;
// Kept for backward compatibility
window.showAddAnotherPopup = showRelatedObjectPopup;
window.dismissAddAnotherPopup = dismissAddRelatedObjectPopup;
window.addEventListener('unload', function(evt) {
window.dismissChildPopups();
});
$(document).ready(function() {
setPopupIndex();
$("a[data-popup-opener]").on('click', function(event) {
event.preventDefault();
opener.dismissRelatedLookupPopup(window, $(this).data("popup-opener"));
});
$('body').on('click', '.related-widget-wrapper-link[data-popup="yes"]', function(e) {
e.preventDefault();
if (this.href) {
const event = $.Event('django:show-related', {href: this.href});
$(this).trigger(event);
if (!event.isDefaultPrevented()) {
showRelatedObjectPopup(this);
}
}
});
$('body').on('change', '.related-widget-wrapper select', function(e) {
const event = $.Event('django:update-related');
$(this).trigger(event);
if (!event.isDefaultPrevented()) {
updateRelatedObjectLinks(this);
}
});
$('.related-widget-wrapper select').trigger('change');
$('body').on('click', '.related-lookup', function(e) {
e.preventDefault();
const event = $.Event('django:lookup-related');
$(this).trigger(event);
if (!event.isDefaultPrevented()) {
showRelatedObjectLookupPopup(this);
}
});
});
}