paginer.js
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/*
paginer - mapa paginowanych list na stronie, indeksowana idami
listę reprezentuje obiekt z polami:
* type - typ listy
* order_by - nazwa pola po którym jest porządek
* filters - słownik/obiekt odpowiadający (mniej więcej) parametrom filter
* lista kolumnn - potrzebna dla ajaxa (nie zmienia się)
*/
// paginer[id] ma format: [typ, parametry, akcja]
// parametry mają format: {'columns': field_list,'order_by': field, 'filters': dict}
// słownik filtrów ma format mniej więcej taki jak argumenty QuerySet.filter()
// (konkretne pola zależą od typu listy)
var page_numbers = {};
function get_page_number(id) {
if (!page_numbers[id])
return 1;
return page_numbers[id];
}
function paginer_link_click() {
change_page($(this).parents('div.paginer')[0].id,
$('span.page_nr', this).text());
}
function bind_category_walk() {
var container = $(this).parents('div.category-walk');
var list_id = container.attr('id').replace('_category_walk', '');
var category_id = $('.category-id', this).text();
reload_category(list_id, category_id);
}
function apply_filter() {
var list_id = this.id.replace('_filter_list', '');
//$.each(this.elements, function() {
//});
change_page(list_id, 1);
return false;
}
function perform_group_action() {
var container = $(this).parents('div.paginer')[0];
var id = container.id;
var action = this.id.replace(id + '_', '');
var ajax_url = window['ajax_' + action];
var row_ids = $('.checkrow:checked', container).map(function() {
return this.id.replace(id + '_', '');
}).get();
if (row_ids.length == 0)
error_alert(_("Niczego nie zaznaczono"));
$.each(row_ids, function(i, row_id) {
$.ajaxJSON({
method: 'post',
url: ajax_url,
data: {row_id: row_id},
});
});
update_list(id);
}
function update_filters() {
var list_id = this.id.replace('_filter-button', ''), val;
$.each(this.form.elements, function() {
if (this.name != '') {
val = $(this).value();
if (val !== null) {
if (val !== '')
paginer[list_id][1].filters[this.name] = val;
else
delete paginer[list_id][1].filters[this.name];
}
}
});
change_page(list_id, 1);
}
function update_order() {
var sort_choices = this.parentNode;
var list_id = sort_choices.id.replace('_sort-choices', '');
var sign = $('.sort-direction', this).text() > 0? '' : '-';
var field_name = $('.sort-field-name', this).text();
paginer[list_id][1].order_by = sign + field_name;
change_page(list_id, 1);
$('.sort-direction', this).text(-(sign + '1'));
show_order(list_id);
}
function show_order(list_id) {
var sort_choices = $('#' + list_id + '_sort-choices');
var current_choice, icon;
var order_field = paginer[list_id][1].order_by;
var icon_classes = ['ui-icon-arrow-1-s', 'ui-icon-arrow-1-n'];
var sign = order_field[0] == '-';
if (sign)
order_field = order_field.substr(1);
current_choice = $('#' + list_id + '_' + order_field + '_sort-choice');
$('.current', sort_choices).removeClass('current');
current_choice.addClass('current');
if (sign)
icon_classes.reverse();
icon = $('.sort-icon', current_choice);
icon.removeClass(icon_classes[0]).addClass(icon_classes[1]);
}
function reload_panel(list_id) {
var panel = $('#' + list_id + '_filter-panel');
var filters = paginer[list_id][1].filters;
if (panel.length == 0)
return;
$.each(panel[0].elements, function() {
if (this.name) {
if ($(this).is(':checkbox')) {
if (filters[this.name])
this.checked = 'checked';
else
this.checked = '';
} else {
if (filters[this.name] !== undefined)
$(this).val(filters[this.name]); // źle dla radio
else
$(this).val('');
}
}
});
}
$(function() {
$('div.paginer a.link').click(paginer_link_click);
$('div.category-walk a').click(bind_category_walk);
$('.group-action').click(perform_group_action);
$('.filter-button').click(update_filters);
$('.sort-choices .sort-choice').click(update_order);
});
function paginer_bind_events(id) {
$('div#'+id+' a.link').click(paginer_link_click);
$('div#'+id+' .group-action').click(perform_group_action);
}
function paginer_ajax_callback(data, id) {
paginer_bind_events(id);
list_callback = paginer[id][0]+'_bind_events'; // trochę brzydkie, ale upraszcza
if (window[list_callback])
window[list_callback](id);
}
function change_page(id, nr, protect_hash) {
param = {
id: id,
type: paginer[id][0],
params: paginer[id][1],
page_nr: nr,
action: paginer[id][2],
group_actions: paginer[id][3],
}
$.ajaxJSON({
method: 'post',
url: ajax_paginer,
data: param,
description: _("Pobranie strony"),
dest: $('#'+id+'.paginer'),
callback: paginer_ajax_callback,
callback_args: [id],
});
page_numbers[id] = nr;
if (!protect_hash)
update_hash();
}
function update_list(id, protect_hash) {
change_page(id, get_page_number(id), protect_hash);
}