我在以下位置使用了答案：YUI 3 -Datatable with Paginator + Query Builder + Sort 试过
对于具有内联 json 数据的示例http://jsbin.com/iwijek/10和http://jsfiddle.net/UwjUt/ 。我想根据 YUI 3 文档解析我使用 .get() 的远程 json 文件。但是比特什么也没做。请检查这些示例并帮助我解析远程 json 文件。
{ var url = "file:///e:/Documents/json-search.txt";
var modelList;
dataSource = new Y.DataSource.Get({ source: url });
// comment
// var modelList = new Y.ModelList();
modelList = new Y.ModelList.Get({
source: url });
modelList.add();
}
json-search.txt
[{
name : 'Joe Bloggs',
company : 'ABC Inc',
state : 'AZ',
cost : 100
},
{
name : 'Jane Mary',
company : 'Bits and Bobs Ltd',
state : 'TX',
cost : 1000
},
{
name : 'Paul Smith',
company : 'PS Clothing PLC',
state : 'TX',
cost :400
},
{
name : 'Jack Jones',
company : 'jackjones.com',
State : 'NY',
cost: 9999
},
{
name : 'Crazy Horse',
company : 'Wacky Places Ltd.',
state : 'MI',
cost : 632
}]
我还尝试将数据源传递给 ModelList
YUI.add(
'datatable-filter',
function(Y) {
/**
Adds support for filtering the table data by API methods
@module datatable
@submodule datatable-filter
@since 3.5.0
**/
var YLang = Y.Lang,
isBoolean = YLang.isBoolean,
isString = YLang.isString,
isArray = YLang.isArray,
isObject = YLang.isObject,
toArray = Y.Array,
sub = YLang.sub;
/**
<pre><code>
var table = new Y.DataTable({
columns: [ 'id', 'username', 'name', 'birthdate' ],
data: [ ... ],
filters: true // this will render a filter input box for every column
});
table.render('#table');
</code></pre>
Setting `filters` to `true` will enable UI filtering for all columns. To enable
UI filtering for certain columns only, set `filters` to an array of column keys,
or just add `filters: true` to the respective column configuration objects.
This uses the default setting of `filters: auto` for the DataTable instance.
<pre><code>
var table = new Y.DataTable({
columns: [
'id',
{ key: 'username', renderFilter: true },
{ key: 'name' },
{ key: 'birthdate', renderFilter: true, filter : "=123", filterFn : customFilterFn }
],
data: [ ... ]
// filters: 'auto' is the default
});
To disable UI filtering for all columns, set `filters` to `false`. This still
permits filtering via the API methods.
filter via api:
var filterBy =
{
username : "=student",
name : "%richard",
birthdate : ">01-01-1975"
}
table.set("filterBy",filterBy);
As new records are inserted into the table's `data` ModelList, they will be checked against the filter to determine if they will be rendered
The current filters are stored in the `filterBy` attribute. Assigning this value at instantiation will automatically filter your data.
Filtering is done by a simple value comparison using '=', '!=', '<', '<=', '>', '>=' on the field value.
If you need custom filtering, add a filter function in the column's `filterFn` property. // TODO...
<pre><code>
function applePiesFilter(a) {
return a.get("type") == 'apple' ? true : false;
}
var table = new Y.DataTable({
columns: [ 'id', 'username', { key: name, filterFn: nameFilter }, 'birthdate' ],
data: [ ... ],
filters: [ 'username', 'name', 'birthdate' ]
});
</code></pre>
See the user guide for more details.
@class DataTable.Filters
@for DataTable
@since 3.5.0
**/
function Filters() {}
Filters.ATTRS = {
// Which columns in the UI should suggest and respond to filtering interaction
// pass an empty array if no UI columns should show filters, but you want the
// table.filter(...) API
/**
Controls which columns can show a filtering input
Acceptable values are:
* "auto" - (default) looks for `renderFilter: true` in the column configurations
* "true" - all columns have a filter field rendered
* "false" - no UI filters are enabled
* {String[]} - array of key names to give filter fields
@attribute filters
@type {String|String[]|Boolean}
@default "auto"
@since 3.5.0
**/
filters: {
value: 'auto',
validator: '_validateFilters'
},
/**
The current filter configuration to maintain in the data.
Accepts column `key` objects with a single property the value of the filter
E.g. `{ username: '%student' }`
E.g. `[{ username : '%student' }, { age : '<40'}]
@attribute filterBy
@type {String|String[]|Object|Object[]}
@since 3.5.0
**/
filterBy: {
validator: '_validateFilterBy'
},
/**
Strings containing language for filtering tooltips.
@attribute strings
@type {Object}
@default (strings for current lang configured in the YUI instance config)
@since 3.5.0
**/
strings: {}
};
Y.mix(Filters.prototype, {
/**
Filter the data in the `data` ModelList and refresh the table with the new
order.
@method filter
@param {String|String[]|Object|Object[]} fields The field(s) to filter by
@param {Object} [payload] Extra `filter` event payload you want to send along
@return {DataTable}
@chainable
@since 3.5.0
**/
filter : function (fields, payload) {
/**
Notifies of an impending filter, either from changing the filter in the UI
header, or from a call to the `filter` method.
The requested filter is available in the `filterBy` property of the event.
The default behavior of this event sets the table's `filterBy` attribute.
@event filter
@param {String|String[]|Object|Object[]} filterBy The requested filter
@preventable _defFilterFn
**/
return this.fire('filter', Y.merge((payload || {}), {
filterBy: fields || this.get('filterBy')
}));
},
/**
Template for the row that will hold the filter inputs
@property FILTERS_HEADER_CELL_TEMPLATE
@type {HTML}
@value
**/
FILTERS_HEADER_ROW_TEMPLATE : '<tr class="{filterRowClassName}" tabindex="0"></tr>',
/**
Template for the row that will hold the filter inputs
@property FILTERS_HEADER_CELL_TEMPLATE
@type {HTML}
@value
//<select><option value="=">=</option><option value="%">%</option><option value="!=">!=</option><option value="!%">!%</option><option value=">">%gt</option><option value=">=">>=</option><option value="<"><</option><option value="<="><=</option></select>
**/
FILTERS_HEADER_CELL_TEMPLATE : '<th class="{className}" tabindex="0" rowspan="1" colspan="1" title="Filter by {colName}">' +
'<div class="{linerClass}" tabindex="0"><input type="text" data-yui3-col-key="{colKey}" class="{inputClass}"/></div></th>',
/**
Template for the row that will doesn't have filter inputs
@property FILTERS_HEADER_CELL_TEMPLATE_NONE
@type {HTML}
@value
**/
FILTERS_HEADER_CELL_TEMPLATE_NONE : '<th class="{className}" tabindex="0" rowspan="1" colspan="1" title="Filtering unavailable on this field"></th>',
//--------------------------------------------------------------------------
// Protected properties and methods
//--------------------------------------------------------------------------
/**
Filters the `data` ModelList based on the new `filterBy` configuration.
@method _afterFilterByChange
@param {EventFacade} e The `filterByChange` event
@protected
@since 3.5.0
**/
_afterFilterByChange: function (e) {
var filters;
// Can't use a setter because it's a chicken and egg problem. The
// columns need to be set up to translate, but columns are initialized
// from Core's initializer. So construction-time assignment would
// fail.
// WHAT DOES THIS MEAN??
this._setFilterBy();
if (this._filterBy.length) {
// build the filter function
this._buildFilterFn();
// get the filtered data
this._filteredData = this.data.filter( { asList : true }, this._filterFn);
} else {
this._filteredData = this.data;
}
// 'hide' the filtered rows
this._hideFilteredData();
},
/**
@description if the row is not in the filtered data hide it, otherwise show it
@method _hideFilteredData
@protected
@since 3.5.0
**/
_hideFilteredData: function () {
var i,len,clientId;
for(i=0, len = this.data.size(); this._filteredData.getById && i < len; ++i) {
clientId = this.data.item(i).get("clientId");
if(this._filteredData.getByClientId(clientId)) {
this.get("contentBox").one("tbody").one("[data-yui3-record=" + clientId + "]").setStyle("display","table-row");
} else {
this.get("contentBox").one("tbody").one("[data-yui3-record=" + clientId + "]").setStyle("display","none");
}
}
},
/**
Applies the filtering logic to the new ModelList if the `newVal` is a new
ModelList.
@method _afterFilterDataChange
@param {EventFacade} e the `dataChange` event
@protected
@since 3.5.0
**/
_afterFilterDataChange: function (e) {
// object values always trigger a change event, but we only want to
// call _initFilterFn if the value passed to the `data` attribute was a
// new ModelList, not a set of new data as an array, or even the same
// ModelList.
if (e.prevVal !== e.newVal || e.newVal.hasOwnProperty('_compare')) {
// this._initFilterFn();
}
},
/**
Checks if any of the fields in the modified record are fields that are
currently being filtered by, and if so, refilters the `data` ModelList.
@method _afterFilterRecordChange
@param {EventFacade} e The Model's `change` event
@protected
@since 3.5.0
**/
_afterFilterRecordChange: function (e) {
var i, len;
for (i = 0, len = this._filterBy.length; i < len; ++i) {
if (e.changed[this._filterBy[i].key]) {
this.data.filter();
break;
}
}
},
/**
Subscribes to state changes that warrant updating the UI, and adds the
click handler for triggering the filter operation from the UI.
@method _bindFilterUI
@protected
@since 3.5.0
**/
_bindFilterUI: function () {
var handles = this._eventHandles;
// 'filterByChange' -> need to update UI
if (!handles.filterAttrs) {
handles.filterAttrs = this.after(
['filtersChange', 'columnsChange'],
Y.bind('_uiSetFilters', this));
}
if (!handles.filterUITrigger && this._theadNode) {
handles.filterUITrigger = this.delegate(['keyup','blur'],
Y.rbind('_onUITriggerFilter', this),
'.' + this.getClassName('filter', 'input'));
}
},
/**
Sets the `filterBy` attribute from the `filter` event's `e.filterBy` value.
@method _defFilterFn
@param {EventFacade} e The `filter` event
@protected
@since 3.5.0
**/
_defFilterFn: function (e) {
this.set.apply(this, ['filterBy', e.filterBy].concat(e.details));
},
/**
Sets up the initial filter state and instance properties. Publishes events
and subscribes to attribute change events to maintain internal state.
@method initializer
@protected
@since 3.5.0
**/
initializer: function () {
var boundParseFilter = Y.bind('_parseFilter', this);
this._parseFilter();
this._setFilterBy();
this._initFilterStrings();
// dataChange : Y.bind('_afterFilterDataChange', this),
//
// filterChange : boundParseFilter
this.after({
'sort' : this._hideFilteredData,
'columnsChange' : boundParseFilter,
'filterByChange' : Y.bind('_afterFilterByChange', this),
'table:renderHeader': Y.bind('_renderFilters', this)});
// this.data.after(this.data.model.NAME + ":change",
// Y.bind('_afterFilterRecordChange', this));
// TODO: this event needs magic, allowing async remote filtering
// this.publish('filter', {
// defaultFn: Y.bind('_defFilterFn', this)
// });
},
/**
Add the filter related strings to the `strings` map.
@method _initFilterStrings
@protected
@since 3.5.0
**/
_initFilterStrings: function () {
// Not a valueFn because other class extensions will want to add to it
this.set('strings', Y.mix((this.get('strings') || {}),
Y.Intl.get('datatable-filter')));
},
/**
@description Fires the `filter` event in response to user changing the UI filters
@method _onUITriggerFilter
@param {DOMEventFacade} e The `mouseout` event
@protected
@since 3.5.0
**/
_onUITriggerFilter: function (e) {
var colKey = e.currentTarget.getAttribute('data-yui3-col-key'),
column = colKey && this.getColumn(colKey),
filterBy = this.get("filterBy") || {},
i, len;
e.halt(); // not doing anything anyway?
if (column) {
filterBy[colKey] = e.currentTarget.get("value");
}
this.set("filterBy",filterBy);
},
/**
@description Build the filter function from the column config, this function is passed to the model list fiter() method
@method _buildFilterFn
@protected
@since 3.5.0
**/
_buildFilterFn: function () {
var i,len,op1,op2, key, filter, filterFn;
filterFn = function(model,index,modelList) {
var key,filter,op1,op2,val,filter,passesFilter = true;
for(i=0,len = this._filterBy.length; i< len && passesFilter; ++i) {
key = this._filterBy[i].key;
filter = this._filterBy[i].filter;
val = model.get(key) || '';
op1 = filter.substr(0,1);
op2 = filter.substr(1,1);
if(op2 == '=') {
switch(op1) {
case '!':
// not equal
if(val.toLowerCase() == filter.substr(2).toLowerCase()) {
passesFilter = false;
}
break;
case '>':
// greater or equal
if(parseInt(val) < parseInt(filter.substr(2))) {
passesFilter = false;
}
break;
case '<':
// less than or equal
if(parseInt(val) > parseInt(filter.substr(2))) {
passesFilter = false;
}
break;
}
} else if (op2 == '%' && op1 =='!') {
// not like
if((val.toLowerCase().indexOf(filter.substr(2).toLowerCase()) > -1)) {
passesFilter = false;
}
break;
} else {
switch(op1) {
case '=':
// equal
if(val.toLowerCase() != filter.substr(1).toLowerCase()) {
passesFilter = false;
}
break;
case '>':
// greater than
if(parseInt(val) <= parseInt(filter.substr(1))) {
passesFilter = false;
}
break;
case '<':
// less than
if(parseInt(val) >= parseInt(filter.substr(1))) {
passesFilter = false;
}
break;
case '%':
// like
if((val.toLowerCase().indexOf(filter.substr(1).toLowerCase()) === -1)) {
passesFilter = false;
}
break;
default:
// consider to be like
if((String(val).toLowerCase().indexOf(String(filter).toLowerCase()) === -1)) {
passesFilter = false;
}
break;
}
}
}
return passesFilter;
};
this._filterFn = Y.bind(filterFn,this);
},
/**
@description Normalizes the possible input values for the `filter` attribute setting up the column config as appropriate
@method _parseFilter
@protected
@since 3.5.0
**/
_parseFilter: function () {
var filters = this.get('filters'),
columns = [],
i, len, col;
col = this._displayColumns.slice();
this._uiFilters = false;
if(filters === 'auto') {
// look for key on columns
col = this._displayColumns.slice();
for(i = 0; i < col.length; i++) {
if(col[i].renderFilter) {
this._uiFilters = true;
}
}
} else if(filters === true) {
// provide UI filters for all cols
col = this._displayColumns.slice();
for(i = 0; i < col.length; i++) {
this._uiFilters = true;
this._displayColumns[i].renderFilter = true;
}
} else if (isArray(filters)) {
// provide UI filters on the specified cols (plural)
for (i = 0, len=filters.length; i < len; ++i) {
if(col = this.getColumn(filters[i])) {
this._uiFilters = true;
col.renderFilter = true;
}
}
} else if (filters) {
// provide UI filter on the specifed 'COL' (singular)
for (i = 0, len = col.length; i < len; ++i) {
if (col[i].key === filters) {
this._uiFilters = true;
this._displayColumns[i].renderFilter = true;
i = len;
}
}
}
},
/**
Initial application of the filters UI.
@method _renderFilters
@protected
@since 3.5.0
**/
_renderFilters: function () {
this._uiSetFilters();
this._bindFilterUI();
},
/**
@description Parses the current `filterBy` attribute and updates the columns
@method _setFilterBy
@protected
@since 3.5.0
**/
_setFilterBy: function () {
var columns = this._displayColumns,
filterBy = this.get('filterBy') || {},
filteredClass = ' ' + this.getClassName('filtered'),
i, len, name, dir, field, column;
this._filterBy = [];
// Purge current filter state from column configs
for (i = 0, len = columns.length; i < len; ++i) {
column = columns[i];
delete columns[i].filter;
if (column.className) {
// TODO: be more thorough
column.className = column.className.replace(filteredClass, '');
}
}
for (key in filterBy) {
if(filterBy[key]!='') {
// Allow filtering of any model field and any column
column = this.getColumn(key) || { _id: key, key: key };
if (column) {
column.filter = filterBy[key];
if (!column.className) {
column.className = '';
}
column.className += filteredClass;
this._filterBy.push(column);
}
}
}
},
/**
Array of column configuration objects of those columns that need UI setup
for user interaction.
@property _filters
@type {Object[]}
@protected
@since 3.5.0
**/
//_filters: null,
/**
Array of column configuration objects for those columns that are currently
being used to filter the data. Fake column objects are used for fields that
are not rendered as columns.
@property _filterBy
@type {Object[]}
@protected
@since 3.5.0
**/
//_filterBy: null,
/**
Replacement `comparator` for the `data` ModelList that defers filtering logic
to the `_compare` method. The deferral is accomplished by returning `this`.
@method _filterComparator
@param {Model} item The record being evaluated for filter position
@return {Model} The record
@protected
@since 3.5.0
**/
_filterComparator: function (item) {
// Defer filtering to ModelList's _compare
return item;
},
/**
Applies the appropriate classes to the `boundingBox` and column headers to
indicate filter state and filterability.
Also currently wraps the header content of filters columns in a `<div>`
liner to give a CSS anchor for filter indicators.
@method _uiSetFilters
@protected
@since 3.5.0
**/
_uiSetFilters: function () {
var columns = this._displayColumns.slice(),
filtersClass = this.getClassName('filters', 'column'),
filtersHidden = this.getClassName("filters","hidden"),
filterRowClass = this.getClassName("filters","row"),
filteredClass = this.getClassName('filtered'),
linerClass = this.getClassName('filter', 'liner'),
i, len, col, node, liner, title, desc;
this.get('boundingBox').toggleClass(
this.getClassName('filters'),
columns.length);
/// NEED TO ADDRESS
if((node = this._theadNode.one("." + filterRowClass))) {
node.remove(true);
}
if(columns.length>0 && this._uiFilters) {
tr = this._theadNode.appendChild(Y.Lang.sub(
this.FILTERS_HEADER_ROW_TEMPLATE, {
filterRowClassName: filterRowClass }));
for (i = 0, len = columns.length; i < len; ++i) {
if(columns[i].renderFilter) {
tr.append(Y.Lang.sub(
this.FILTERS_HEADER_CELL_TEMPLATE, {
className: this.getClassName("filter","cell"),
colKey : columns[i].key,
colName : columns[i].label || columns[i].key,
inputClass : this.getClassName("filter","input"),
linerClass: linerClass
}));
} else {
tr.append(Y.Lang.sub(
this.FILTERS_HEADER_CELL_TEMPLATE_NONE, {
className: this.getClassName("no-filter")
}));
}
}
}
},
/**
Allows values `true`, `false`, "auto", or arrays of column names through.
@method _validateFilters
@param {Any} val The input value to `set("filters", VAL)`
@return {Boolean}
@protected
@since 3.5.0
**/
_validateFilters: function (val) {
return val === 'auto' || isBoolean(val) || isArray(val);
},
/**
Allows strings, arrays of strings, objects, or arrays of objects.
@method _validateFilterBy
@param {String|String[]|Object|Object[]} val The new `filterBy` value
@return {Boolean}
@protected
@since 3.5.0
**/
_validateFilterBy: function (val) {
return val;
return val === null ||
isString(val) ||
isObject(val, true) ||
(isArray(val) && (isString(val[0]) || isObject(val, true)));
}
}, true);
Y.DataTable.Filters = Filters;
Y.Base.mix(Y.DataTable, [Filters]);
},"0.1", {
requires : []});
YUI().use('datatable-sort','datatable-filter',function(Y) {
// comment
//var modelList = new Y.ModelList();
var url = "file:///e:/Documents/json-search.txt";
var modelList, datasource;
modelList = new Y.ModelList();
datasource = Y.DataSource.IO({ source: "file:///e:/Documents/json-search.txt" });
modelList.plug(Y.Plugin.ModelListDataSource, {
source : datasource, });
datasource.sendRequest();
var dataTable = new Y.DataTable (
{
columns : [ {key:"name",label:"Person",renderFilter:true,filter:"Joe"},"company",{key:"state",renderFilter:true},{key:"cost",renderFilter:true}],
data : modelList, sortable : true, filters : 'auto'
}).render("#table");
modelList.item(1).set("id",102);
Y.one("#showhidefilters").on("click",function(e) {e.halt();Y.one("#table").one(".yui3-datatable-filters-row").toggleClass("yui3-datatable-filters-hidden");});
});