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/*
* jqFilter jQuery jqGrid filter addon.
* Copyright (c) 2011, Tony Tomov, tony@trirand.com
* Dual licensed under the MIT and GPL licenses
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl-2.0.html
*
* The work is inspired from this Stefan Pirvu
* http://www.codeproject.com/KB/scripting/json-filtering.aspx
*
* The filter uses JSON entities to hold filter rules and groups. Here is an example of a filter:
{ "groupOp": "AND",
"groups" : [
{ "groupOp": "OR",
"rules": [
{ "field": "name", "op": "eq", "data": "England" },
{ "field": "id", "op": "le", "data": "5"}
]
}
],
"rules": [
{ "field": "name", "op": "eq", "data": "Romania" },
{ "field": "id", "op": "le", "data": "1"}
]
}
*/
/*jshint eqeqeq:false, eqnull:true, devel:true */
/*global jQuery */
(function ($) {
"use strict";
$.fn.jqFilter = function( arg ) {
if (typeof arg === 'string') {
var fn = $.fn.jqFilter[arg];
if (!fn) {
throw ("jqFilter - No such method: " + arg);
}
var args = $.makeArray(arguments).slice(1);
return fn.apply(this,args);
}
var p = $.extend(true,{
filter: null,
columns: [],
onChange : null,
afterRedraw : null,
checkValues : null,
error: false,
errmsg : "",
errorcheck : true,
showQuery : true,
sopt : null,
ops : [
{"name": "eq", "description": "equal", "operator":"="},
{"name": "ne", "description": "not equal", "operator":"<>"},
{"name": "lt", "description": "less", "operator":"<"},
{"name": "le", "description": "less or equal","operator":"<="},
{"name": "gt", "description": "greater", "operator":">"},
{"name": "ge", "description": "greater or equal", "operator":">="},
{"name": "bw", "description": "begins with", "operator":"LIKE"},
{"name": "bn", "description": "does not begin with", "operator":"NOT LIKE"},
{"name": "in", "description": "in", "operator":"IN"},
{"name": "ni", "description": "not in", "operator":"NOT IN"},
{"name": "ew", "description": "ends with", "operator":"LIKE"},
{"name": "en", "description": "does not end with", "operator":"NOT LIKE"},
{"name": "cn", "description": "contains", "operator":"LIKE"},
{"name": "nc", "description": "does not contain", "operator":"NOT LIKE"},
{"name": "nu", "description": "is null", "operator":"IS NULL"},
{"name": "nn", "description": "is not null", "operator":"IS NOT NULL"}
],
numopts : ['eq','ne', 'lt', 'le', 'gt', 'ge', 'nu', 'nn', 'in', 'ni'],
stropts : ['eq', 'ne', 'bw', 'bn', 'ew', 'en', 'cn', 'nc', 'nu', 'nn', 'in', 'ni'],
strarr : ['text', 'string', 'blob'],
_gridsopt : [], // grid translated strings, do not tuch
groupOps : [{ op: "AND", text: "AND" }, { op: "OR", text: "OR" }],
groupButton : true,
ruleButtons : true,
direction : "ltr"
}, $.jgrid.filter, arg || {});
return this.each( function() {
if (this.filter) {return;}
this.p = p;
// setup filter in case if they is not defined
if (this.p.filter === null || this.p.filter === undefined) {
this.p.filter = {
groupOp: this.p.groupOps[0].op,
rules: [],
groups: []
};
}
var i, len = this.p.columns.length, cl,
isIE = /msie/i.test(navigator.userAgent) && !window.opera;
// translating the options
if(this.p._gridsopt.length) {
// ['eq','ne','lt','le','gt','ge','bw','bn','in','ni','ew','en','cn','nc']
for(i=0;i<this.p._gridsopt.length;i++) {
this.p.ops[i].description = this.p._gridsopt[i];
}
}
this.p.initFilter = $.extend(true,{},this.p.filter);
// set default values for the columns if they are not set
if( !len ) {return;}
for(i=0; i < len; i++) {
cl = this.p.columns[i];
if( cl.stype ) {
// grid compatibility
cl.inputtype = cl.stype;
} else if(!cl.inputtype) {
cl.inputtype = 'text';
}
if( cl.sorttype ) {
// grid compatibility
cl.searchtype = cl.sorttype;
} else if (!cl.searchtype) {
cl.searchtype = 'string';
}
if(cl.hidden === undefined) {
// jqGrid compatibility
cl.hidden = false;
}
if(!cl.label) {
cl.label = cl.name;
}
if(cl.index) {
cl.name = cl.index;
}
if(!cl.hasOwnProperty('searchoptions')) {
cl.searchoptions = {};
}
if(!cl.hasOwnProperty('searchrules')) {
cl.searchrules = {};
}
}
if(this.p.showQuery) {
$(this).append("<table class='queryresult ui-widget ui-widget-content' style='display:block;max-width:440px;border:0px none;' dir='"+this.p.direction+"'><tbody><tr><td class='query'></td></tr></tbody></table>");
}
/*
*Perform checking.
*
*/
var checkData = function(val, colModelItem) {
var ret = [true,""];
if($.isFunction(colModelItem.searchrules)) {
ret = colModelItem.searchrules(val, colModelItem);
} else if($.jgrid && $.jgrid.checkValues) {
try {
ret = $.jgrid.checkValues(val, -1, null, colModelItem.searchrules, colModelItem.label);
} catch (e) {}
}
if(ret && ret.length && ret[0] === false) {
p.error = !ret[0];
p.errmsg = ret[1];
}
};
/* moving to common
randId = function() {
return Math.floor(Math.random()*10000).toString();
};
*/
this.onchange = function ( ){
// clear any error
this.p.error = false;
this.p.errmsg="";
return $.isFunction(this.p.onChange) ? this.p.onChange.call( this, this.p ) : false;
};
/*
* Redraw the filter every time when new field is added/deleted
* and field is changed
*/
this.reDraw = function() {
$("table.group:first",this).remove();
var t = this.createTableForGroup(p.filter, null);
$(this).append(t);
if($.isFunction(this.p.afterRedraw) ) {
this.p.afterRedraw.call(this, this.p);
}
};
/*
* Creates a grouping data for the filter
* @param group - object
* @param parentgroup - object
*/
this.createTableForGroup = function(group, parentgroup) {
var that = this, i;
// this table will hold all the group (tables) and rules (rows)
var table = $("<table class='group ui-widget ui-widget-content' style='border:0px none;'><tbody></tbody></table>"),
// create error message row
align = "left";
if(this.p.direction == "rtl") {
align = "right";
table.attr("dir","rtl");
}
if(parentgroup === null) {
table.append("<tr class='error' style='display:none;'><th colspan='5' class='ui-state-error' align='"+align+"'></th></tr>");
}
var tr = $("<tr></tr>");
table.append(tr);
// this header will hold the group operator type and group action buttons for
// creating subgroup "+ {}", creating rule "+" or deleting the group "-"
var th = $("<th colspan='5' align='"+align+"'></th>");
tr.append(th);
if(this.p.ruleButtons === true) {
// dropdown for: choosing group operator type
var groupOpSelect = $("<select class='opsel'></select>");
th.append(groupOpSelect);
// populate dropdown with all posible group operators: or, and
var str= "", selected;
for (i = 0; i < p.groupOps.length; i++) {
selected = group.groupOp === that.p.groupOps[i].op ? " selected='selected'" :"";
str += "<option value='"+that.p.groupOps[i].op+"'" + selected+">"+that.p.groupOps[i].text+"</option>";
}
groupOpSelect
.append(str)
.bind('change',function() {
group.groupOp = $(groupOpSelect).val();
that.onchange(); // signals that the filter has changed
});
}
// button for adding a new subgroup
var inputAddSubgroup ="<span></span>";
if(this.p.groupButton) {
inputAddSubgroup = $("<input type='button' value='+ {}' title='Add subgroup' class='add-group'/>");
inputAddSubgroup.bind('click',function() {
if (group.groups === undefined ) {
group.groups = [];
}
group.groups.push({
groupOp: p.groupOps[0].op,
rules: [],
groups: []
}); // adding a new group
that.reDraw(); // the html has changed, force reDraw
that.onchange(); // signals that the filter has changed
return false;
});
}
th.append(inputAddSubgroup);
if(this.p.ruleButtons === true) {
// button for adding a new rule
var inputAddRule = $("<input type='button' value='+' title='Add rule' class='add-rule ui-add'/>"), cm;
inputAddRule.bind('click',function() {
//if(!group) { group = {};}
if (group.rules === undefined) {
group.rules = [];
}
for (i = 0; i < that.p.columns.length; i++) {
// but show only serchable and serchhidden = true fields
var searchable = (that.p.columns[i].search === undefined) ? true: that.p.columns[i].search ,
hidden = (that.p.columns[i].hidden === true),
ignoreHiding = (that.p.columns[i].searchoptions.searchhidden === true);
if ((ignoreHiding && searchable) || (searchable && !hidden)) {
cm = that.p.columns[i];
break;
}
}
var opr;
if( cm.searchoptions.sopt ) {opr = cm.searchoptions.sopt;}
else if(that.p.sopt) { opr= that.p.sopt; }
else if ( $.inArray(cm.searchtype, that.p.strarr) !== -1 ) {opr = that.p.stropts;}
else {opr = that.p.numopts;}
group.rules.push({
field: cm.name,
op: opr[0],
data: ""
}); // adding a new rule
that.reDraw(); // the html has changed, force reDraw
// for the moment no change have been made to the rule, so
// this will not trigger onchange event
return false;
});
th.append(inputAddRule);
}
// button for delete the group
if (parentgroup !== null) { // ignore the first group
var inputDeleteGroup = $("<input type='button' value='-' title='Delete group' class='delete-group'/>");
th.append(inputDeleteGroup);
inputDeleteGroup.bind('click',function() {
// remove group from parent
for (i = 0; i < parentgroup.groups.length; i++) {
if (parentgroup.groups[i] === group) {
parentgroup.groups.splice(i, 1);
break;
}
}
that.reDraw(); // the html has changed, force reDraw
that.onchange(); // signals that the filter has changed
return false;
});
}
// append subgroup rows
if (group.groups !== undefined) {
for (i = 0; i < group.groups.length; i++) {
var trHolderForSubgroup = $("<tr></tr>");
table.append(trHolderForSubgroup);
var tdFirstHolderForSubgroup = $("<td class='first'></td>");
trHolderForSubgroup.append(tdFirstHolderForSubgroup);
var tdMainHolderForSubgroup = $("<td colspan='4'></td>");
tdMainHolderForSubgroup.append(this.createTableForGroup(group.groups[i], group));
trHolderForSubgroup.append(tdMainHolderForSubgroup);
}
}
if(group.groupOp === undefined) {
group.groupOp = that.p.groupOps[0].op;
}
// append rules rows
if (group.rules !== undefined) {
for (i = 0; i < group.rules.length; i++) {
table.append(
this.createTableRowForRule(group.rules[i], group)
);
}
}
return table;
};
/*
* Create the rule data for the filter
*/
this.createTableRowForRule = function(rule, group ) {
// save current entity in a variable so that it could
// be referenced in anonimous method calls
var that=this, tr = $("<tr></tr>"),
//document.createElement("tr"),
// first column used for padding
//tdFirstHolderForRule = document.createElement("td"),
i, op, trpar, cm, str="", selected;
//tdFirstHolderForRule.setAttribute("class", "first");
tr.append("<td class='first'></td>");
// create field container
var ruleFieldTd = $("<td class='columns'></td>");
tr.append(ruleFieldTd);
// dropdown for: choosing field
var ruleFieldSelect = $("<select></select>"), ina, aoprs = [];
ruleFieldTd.append(ruleFieldSelect);
ruleFieldSelect.bind('change',function() {
rule.field = $(ruleFieldSelect).val();
trpar = $(this).parents("tr:first");
for (i=0;i<that.p.columns.length;i++) {
if(that.p.columns[i].name === rule.field) {
cm = that.p.columns[i];
break;
}
}
if(!cm) {return;}
cm.searchoptions.id = $.jgrid.randId();
if(isIE && cm.inputtype === "text") {
if(!cm.searchoptions.size) {
cm.searchoptions.size = 10;
}
}
var elm = $.jgrid.createEl(cm.inputtype,cm.searchoptions, "", true, that.p.ajaxSelectOptions, true);
$(elm).addClass("input-elm");
//that.createElement(rule, "");
if( cm.searchoptions.sopt ) {op = cm.searchoptions.sopt;}
else if(that.p.sopt) { op= that.p.sopt; }
else if ($.inArray(cm.searchtype, that.p.strarr) !== -1) {op = that.p.stropts;}
else {op = that.p.numopts;}
// operators
var s ="", so = 0;
aoprs = [];
$.each(that.p.ops, function() { aoprs.push(this.name); });
for ( i = 0 ; i < op.length; i++) {
ina = $.inArray(op[i],aoprs);
if(ina !== -1) {
if(so===0) {
rule.op = that.p.ops[ina].name;
}
s += "<option value='"+that.p.ops[ina].name+"'>"+that.p.ops[ina].description+"</option>";
so++;
}
}
$(".selectopts",trpar).empty().append( s );
$(".selectopts",trpar)[0].selectedIndex = 0;
if( $.browser.msie && $.browser.version < 9) {
var sw = parseInt($("select.selectopts",trpar)[0].offsetWidth, 10) + 1;
$(".selectopts",trpar).width( sw );
$(".selectopts",trpar).css("width","auto");
}
// data
$(".data",trpar).empty().append( elm );
$.jgrid.bindEv( elm, cm.searchoptions, that);
$(".input-elm",trpar).bind('change',function( e ) {
var tmo = $(this).hasClass("ui-autocomplete-input") ? 200 :0;
setTimeout(function(){
var elem = e.target;
rule.data = elem.nodeName.toUpperCase() === "SPAN" && cm.searchoptions && $.isFunction(cm.searchoptions.custom_value) ?
cm.searchoptions.custom_value($(elem).children(".customelement:first"), 'get') : elem.value;
that.onchange(); // signals that the filter has changed
}, tmo);
});
setTimeout(function(){ //IE, Opera, Chrome
rule.data = $(elm).val();
that.onchange(); // signals that the filter has changed
}, 0);
});
// populate drop down with user provided column definitions
var j=0;
for (i = 0; i < that.p.columns.length; i++) {
// but show only serchable and serchhidden = true fields
var searchable = (that.p.columns[i].search === undefined) ? true: that.p.columns[i].search,
hidden = (that.p.columns[i].hidden === true),
ignoreHiding = (that.p.columns[i].searchoptions.searchhidden === true);
if ((ignoreHiding && searchable) || (searchable && !hidden)) {
selected = "";
if(rule.field === that.p.columns[i].name) {
selected = " selected='selected'";
j=i;
}
str += "<option value='"+that.p.columns[i].name+"'" +selected+">"+that.p.columns[i].label+"</option>";
}
}
ruleFieldSelect.append( str );
// create operator container
var ruleOperatorTd = $("<td class='operators'></td>");
tr.append(ruleOperatorTd);
cm = p.columns[j];
// create it here so it can be referentiated in the onchange event
//var RD = that.createElement(rule, rule.data);
cm.searchoptions.id = $.jgrid.randId();
if(isIE && cm.inputtype === "text") {
if(!cm.searchoptions.size) {
cm.searchoptions.size = 10;
}
}
var ruleDataInput = $.jgrid.createEl(cm.inputtype,cm.searchoptions, rule.data, true, that.p.ajaxSelectOptions, true);
if(rule.op == 'nu' || rule.op == 'nn') {
$(ruleDataInput).attr('readonly','true');
$(ruleDataInput).attr('disabled','true');
} //retain the state of disabled text fields in case of null ops
// dropdown for: choosing operator
var ruleOperatorSelect = $("<select class='selectopts'></select>");
ruleOperatorTd.append(ruleOperatorSelect);
ruleOperatorSelect.bind('change',function() {
rule.op = $(ruleOperatorSelect).val();
trpar = $(this).parents("tr:first");
var rd = $(".input-elm",trpar)[0];
if (rule.op === "nu" || rule.op === "nn") { // disable for operator "is null" and "is not null"
rule.data = "";
rd.value = "";
rd.setAttribute("readonly", "true");
rd.setAttribute("disabled", "true");
} else {
rd.removeAttribute("readonly");
rd.removeAttribute("disabled");
}
that.onchange(); // signals that the filter has changed
});
// populate drop down with all available operators
if( cm.searchoptions.sopt ) {op = cm.searchoptions.sopt;}
else if(that.p.sopt) { op= that.p.sopt; }
else if ($.inArray(cm.searchtype, that.p.strarr) !== -1) {op = that.p.stropts;}
else {op = that.p.numopts;}
str="";
$.each(that.p.ops, function() { aoprs.push(this.name); });
for ( i = 0; i < op.length; i++) {
ina = $.inArray(op[i],aoprs);
if(ina !== -1) {
selected = rule.op === that.p.ops[ina].name ? " selected='selected'" : "";
str += "<option value='"+that.p.ops[ina].name+"'"+selected+">"+that.p.ops[ina].description+"</option>";
}
}
ruleOperatorSelect.append( str );
// create data container
var ruleDataTd = $("<td class='data'></td>");
tr.append(ruleDataTd);
// textbox for: data
// is created previously
//ruleDataInput.setAttribute("type", "text");
ruleDataTd.append(ruleDataInput);
$.jgrid.bindEv( ruleDataInput, cm.searchoptions, that);
$(ruleDataInput)
.addClass("input-elm")
.bind('change', function() {
rule.data = cm.inputtype === 'custom' ? cm.searchoptions.custom_value($(this).children(".customelement:first"),'get') : $(this).val();
that.onchange(); // signals that the filter has changed
});
// create action container
var ruleDeleteTd = $("<td></td>");
tr.append(ruleDeleteTd);
// create button for: delete rule
if(this.p.ruleButtons === true) {
var ruleDeleteInput = $("<input type='button' value='-' title='Delete rule' class='delete-rule ui-del'/>");
ruleDeleteTd.append(ruleDeleteInput);
//$(ruleDeleteInput).html("").height(20).width(30).button({icons: { primary: "ui-icon-minus", text:false}});
ruleDeleteInput.bind('click',function() {
// remove rule from group
for (i = 0; i < group.rules.length; i++) {
if (group.rules[i] === rule) {
group.rules.splice(i, 1);
break;
}
}
that.reDraw(); // the html has changed, force reDraw
that.onchange(); // signals that the filter has changed
return false;
});
}
return tr;
};
this.getStringForGroup = function(group) {
var s = "(", index;
if (group.groups !== undefined) {
for (index = 0; index < group.groups.length; index++) {
if (s.length > 1) {
s += " " + group.groupOp + " ";
}
try {
s += this.getStringForGroup(group.groups[index]);
} catch (eg) {alert(eg);}
}
}
if (group.rules !== undefined) {
try{
for (index = 0; index < group.rules.length; index++) {
if (s.length > 1) {
s += " " + group.groupOp + " ";
}
s += this.getStringForRule(group.rules[index]);
}
} catch (e) {alert(e);}
}
s += ")";
if (s === "()") {
return ""; // ignore groups that don't have rules
}
return s;
};
this.getStringForRule = function(rule) {
var opUF = "",opC="", i, cm, ret, val,
numtypes = ['int', 'integer', 'float', 'number', 'currency']; // jqGrid
for (i = 0; i < this.p.ops.length; i++) {
if (this.p.ops[i].name === rule.op) {
opUF = this.p.ops[i].operator;
opC = this.p.ops[i].name;
break;
}
}
for (i=0; i<this.p.columns.length; i++) {
if(this.p.columns[i].name === rule.field) {
cm = this.p.columns[i];
break;
}
}
if (cm == null) { return ""; }
val = rule.data;
if(opC === 'bw' || opC === 'bn') { val = val+"%"; }
if(opC === 'ew' || opC === 'en') { val = "%"+val; }
if(opC === 'cn' || opC === 'nc') { val = "%"+val+"%"; }
if(opC === 'in' || opC === 'ni') { val = " ("+val+")"; }
if(p.errorcheck) { checkData(rule.data, cm); }
if($.inArray(cm.searchtype, numtypes) !== -1 || opC === 'nn' || opC === 'nu') { ret = rule.field + " " + opUF + " " + val; }
else { ret = rule.field + " " + opUF + " \"" + val + "\""; }
return ret;
};
this.resetFilter = function () {
this.p.filter = $.extend(true,{},this.p.initFilter);
this.reDraw();
this.onchange();
};
this.hideError = function() {
$("th.ui-state-error", this).html("");
$("tr.error", this).hide();
};
this.showError = function() {
$("th.ui-state-error", this).html(this.p.errmsg);
$("tr.error", this).show();
};
this.toUserFriendlyString = function() {
return this.getStringForGroup(p.filter);
};
this.toString = function() {
// this will obtain a string that can be used to match an item.
var that = this;
function getStringRule(rule) {
if(that.p.errorcheck) {
var i, cm;
for (i=0; i<that.p.columns.length; i++) {
if(that.p.columns[i].name === rule.field) {
cm = that.p.columns[i];
break;
}
}
if(cm) {checkData(rule.data, cm);}
}
return rule.op + "(item." + rule.field + ",'" + rule.data + "')";
}
function getStringForGroup(group) {
var s = "(", index;
if (group.groups !== undefined) {
for (index = 0; index < group.groups.length; index++) {
if (s.length > 1) {
if (group.groupOp === "OR") {
s += " || ";
}
else {
s += " && ";
}
}
s += getStringForGroup(group.groups[index]);
}
}
if (group.rules !== undefined) {
for (index = 0; index < group.rules.length; index++) {
if (s.length > 1) {
if (group.groupOp === "OR") {
s += " || ";
}
else {
s += " && ";
}
}
s += getStringRule(group.rules[index]);
}
}
s += ")";
if (s === "()") {
return ""; // ignore groups that don't have rules
}
return s;
}
return getStringForGroup(this.p.filter);
};
// Here we init the filter
this.reDraw();
if(this.p.showQuery) {
this.onchange();
}
// mark is as created so that it will not be created twice on this element
this.filter = true;
});
};
$.extend($.fn.jqFilter,{
/*
* Return SQL like string. Can be used directly
*/
toSQLString : function()
{
var s ="";
this.each(function(){
s = this.toUserFriendlyString();
});
return s;
},
/*
* Return filter data as object.
*/
filterData : function()
{
var s;
this.each(function(){
s = this.p.filter;
});
return s;
},
getParameter : function (param) {
if(param !== undefined) {
if (this.p.hasOwnProperty(param) ) {
return this.p[param];
}
}
return this.p;
},
resetFilter: function() {
return this.each(function(){
this.resetFilter();
});
},
addFilter: function (pfilter) {
if (typeof pfilter === "string") {
pfilter = $.jgrid.parse( pfilter );
}
this.each(function(){
this.p.filter = pfilter;
this.reDraw();
this.onchange();
});
}
});
})(jQuery);
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