我正在尝试使用以下命令创建多选下拉列表 http://bentorfs.github.io/angular-bootstrap-multiselect/ Bentorfs 的图书馆。但是，当我尝试在下拉列表中显示数据时，控制台中出现错误，指出切片和过滤器未定义。它告诉我查看 updateSelectionLists 函数，我不知道可能出了什么问题，但欢迎任何建议，谢谢!
(function () {
'use strict';
var multiselect = angular.module('btorfs.multiselect', ['btorfs.multiselect.templates']);
multiselect.getRecursiveProperty = function (object, path) {
return path.split('.').reduce(function (object, x) {
if (object) {
return object[x];
} else {
return null;
}
}, object)
};
multiselect.directive('multiselect', ['$filter', '$document', '$log', function ($filter, $document, $log) {
return {
restrict: 'AE',
scope: {
options: '=',
displayProp: '@',
idProp: '@',
searchLimit: '=?',
selectionLimit: '=?',
showSelectAll: '=?',
showUnselectAll: '=?',
showSearch: '=?',
searchFilter: '=?',
disabled: '=?ngDisabled',
labels: '=?',
showTooltip: '=?'
},
require: 'ngModel',
templateUrl: 'multiselect.html',
link: function ($scope, $element, $attrs, $ngModelCtrl) {
$scope.selectionLimit = $scope.selectionLimit || 0;
$scope.searchLimit = $scope.searchLimit || 25;
$scope.searchFilter = '';
$scope.resolvedOptions = [];
if (typeof $scope.options !== 'function') {
$scope.resolvedOptions = $scope.options;
}
if (typeof $attrs.disabled != 'undefined') {
$scope.disabled = true;
}
$scope.toggleDropdown = function () {
$scope.open = !$scope.open;
};
var closeHandler = function (event) {
if (!$element[0].contains(event.target)) {
$scope.$apply(function () {
$scope.open = false;
});
}
};
$document.on('click', closeHandler);
var updateSelectionLists = function () {
if (!$ngModelCtrl.$viewValue) {
if ($scope.selectedOptions) {
$scope.selectedOptions = [];
}
$scope.unselectedOptions = $scope.resolvedOptions.slice(); // Take a copy
} else {
$scope.selectedOptions = $scope.resolvedOptions.filter(function (el) {
var id = $scope.getId(el);
for (var i = 0; i < $ngModelCtrl.$viewValue.length; i++) {
var selectedId = $scope.getId($ngModelCtrl.$viewValue[i]);
if (id === selectedId) {
return true;
}
}
return false;
});
$scope.unselectedOptions = $scope.resolvedOptions.filter(function (el) {
return $scope.selectedOptions.indexOf(el) < 0;
});
}
};
$ngModelCtrl.$render = function () {
updateSelectionLists();
};
$ngModelCtrl.$viewChangeListeners.push(function () {
updateSelectionLists();
});
$ngModelCtrl.$isEmpty = function (value) {
if (value) {
return (value.length === 0);
} else {
return true;
}
};
var watcher = $scope.$watch('selectedOptions', function () {
$ngModelCtrl.$setViewValue(angular.copy($scope.selectedOptions));
}, true);
$scope.$on('$destroy', function () {
$document.off('click', closeHandler);
if (watcher) {
watcher(); // Clean watcher
}
});
$scope.getButtonText = function () {
if ($scope.selectedOptions && $scope.selectedOptions.length === 1) {
return $scope.getDisplay($scope.selectedOptions[0]);
}
if ($scope.selectedOptions && $scope.selectedOptions.length > 1) {
var totalSelected = angular.isDefined($scope.selectedOptions) ? $scope.selectedOptions.length : 0;
if (totalSelected === 0) {
return $scope.labels && $scope.labels.select ? $scope.labels.select : 'Select';
} else {
return totalSelected + ' ' + ($scope.labels && $scope.labels.itemsSelected ? $scope.labels.itemsSelected : 'selected');
}
} else {
return $scope.labels && $scope.labels.select ? $scope.labels.select : 'Select';
}
};
$scope.selectAll = function () {
$scope.selectedOptions = $scope.resolvedOptions;
$scope.unselectedOptions = [];
};
$scope.unselectAll = function () {
$scope.selectedOptions = [];
$scope.unselectedOptions = $scope.resolvedOptions;
};
$scope.toggleItem = function (item) {
if (typeof $scope.selectedOptions === 'undefined') {
$scope.selectedOptions = [];
}
var selectedIndex = $scope.selectedOptions.indexOf(item);
var currentlySelected = (selectedIndex !== -1);
if (currentlySelected) {
$scope.unselectedOptions.push($scope.selectedOptions[selectedIndex]);
$scope.selectedOptions.splice(selectedIndex, 1);
} else if (!currentlySelected && ($scope.selectionLimit === 0 || $scope.selectedOptions.length < $scope.selectionLimit)) {
var unselectedIndex = $scope.unselectedOptions.indexOf(item);
$scope.unselectedOptions.splice(unselectedIndex, 1);
$scope.selectedOptions.push(item);
}
};
$scope.getId = function (item) {
if (angular.isString(item)) {
return item;
} else if (angular.isObject(item)) {
if ($scope.idProp) {
return multiselect.getRecursiveProperty(item, $scope.idProp);
} else {
$log.error('Multiselect: when using objects as model, a idProp value is mandatory.');
return '';
}
} else {
return item;
}
};
$scope.getDisplay = function (item) {
if (angular.isString(item)) {
return item;
} else if (angular.isObject(item)) {
if ($scope.displayProp) {
return multiselect.getRecursiveProperty(item, $scope.displayProp);
} else {
$log.error('Multiselect: when using objects as model, a displayProp value is mandatory.');
return '';
}
} else {
return item;
}
};
$scope.isSelected = function (item) {
if (!$scope.selectedOptions) {
return false;
}
var itemId = $scope.getId(item);
for (var i = 0; i < $scope.selectedOptions.length; i++) {
var selectedElement = $scope.selectedOptions[i];
if ($scope.getId(selectedElement) === itemId) {
return true;
}
}
return false;
};
$scope.updateOptions = function () {
if (typeof $scope.options === 'function') {
$scope.options().then(function (resolvedOptions) {
$scope.resolvedOptions = resolvedOptions;
updateSelectionLists();
});
}
};
// This search function is optimized to take into account the search limit.
// Using angular limitTo filter is not efficient for big lists, because it still runs the search for
// all elements, even if the limit is reached
$scope.search = function () {
var counter = 0;
return function (item) {
if (counter > $scope.searchLimit) {
return false;
}
var displayName = $scope.getDisplay(item);
if (displayName) {
var result = displayName.toLowerCase().indexOf($scope.searchFilter.toLowerCase()) > -1;
if (result) {
counter++;
}
return result;
}
}
};
}
};
}]);
}());
angular.module('btorfs.multiselect.templates', ['multiselect.html']);
angular.module("multiselect.html", []).run(["$templateCache", function($templateCache) {
$templateCache.put("multiselect.html",
"<div class=\"btn-group\" style=\"width: 100%\">\n" +
" <button type=\"button\" class=\"btn btn-default btn-block dropdown-toggle\" ng-click=\"toggleDropdown()\" ng-disabled=\"disabled\">\n" +
" {{getButtonText()}} <span class=\"caret\"></span>\n" +
" </button>\n" +
" <ul class=\"dropdown-menu dropdown-menu-form\"\n" +
" ng-style=\"{display: open ? 'block' : 'none'}\" style=\"width: 100%; overflow-x: auto\">\n" +
"\n" +
" <li ng-show=\"showSelectAll\">\n" +
" <a ng-click=\"selectAll()\" href=\"\">\n" +
" <span class=\"glyphicon glyphicon-ok\"></span> {{labels.selectAll || 'Select All'}}\n" +
" </a>\n" +
" </li>\n" +
" <li ng-show=\"showUnselectAll\">\n" +
" <a ng-click=\"unselectAll()\" href=\"\">\n" +
" <span class=\"glyphicon glyphicon-remove\"></span> {{labels.unselectAll || 'Unselect All'}}\n" +
" </a>\n" +
" </li>\n" +
" <li ng-show=\"(showSelectAll || showUnselectAll)\"\n" +
" class=\"divider\">\n" +
" </li>\n" +
"\n" +
" <li role=\"presentation\" ng-repeat=\"option in selectedOptions\" class=\"active\">\n" +
" <a class=\"item-selected\" href=\"\" title=\"{{showTooltip ? getDisplay(option) : ''}}\" ng-click=\"toggleItem(option); $event.stopPropagation()\">\n" +
" <span class=\"glyphicon glyphicon-remove\"></span>\n" +
" {{getDisplay(option)}}\n" +
" </a>\n" +
" </li>\n" +
" <li ng-show=\"selectedOptions.length > 0\" class=\"divider\"></li>\n" +
"\n" +
" <li ng-show=\"showSearch\">\n" +
" <div class=\"dropdown-header\">\n" +
" <input type=\"text\" class=\"form-control input-sm\" style=\"width: 100%;\"\n" +
" ng-model=\"searchFilter\" placeholder=\"{{labels.search || 'Search...'}}\" ng-change=\"updateOptions()\"/>\n" +
" </div>\n" +
" </li>\n" +
"\n" +
" <li ng-show=\"showSearch\" class=\"divider\"></li>\n" +
" <li role=\"presentation\" ng-repeat=\"option in unselectedOptions | filter:search() | limitTo: searchLimit\"\n" +
" ng-if=\"!isSelected(option)\"\n" +
" ng-class=\"{disabled : selectionLimit && selectedOptions.length >= selectionLimit}\">\n" +
" <a class=\"item-unselected\" href=\"\" title=\"{{showTooltip ? getDisplay(option) : ''}}\" ng-click=\"toggleItem(option); $event.stopPropagation()\">\n" +
" {{getDisplay(option)}}\n" +
" </a>\n" +
" </li>\n" +
"\n" +
" <li class=\"divider\" ng-show=\"selectionLimit > 1\"></li>\n" +
" <li role=\"presentation\" ng-show=\"selectionLimit > 1\">\n" +
" <a>{{selectedOptions.length || 0}} / {{selectionLimit}} {{labels.itemsSelected || 'selected'}}</a>\n" +
" </li>\n" +
"\n" +
" </ul>\n" +
"</div>\n" +
"");
}]);
我的代码首先会显示 html 页面
<div class="col-md-2">
<form >
<div class="form-group">
<label >Syscode</label>
<multiselect ng-model="rc.syscodes" options="rc.data.zone"> </multiselect>
</div>
</form>
</div>
然后这是 Controller
ReportsController.$inject = ['ReportService','$window', '$q'];
function ReportsController(ReportService, $window, $q){
var ctrl = this;
var market = "market";
var zone = "zone";
var network = "network";
var spot_id = "spot_id";
var spotUUID = "spotUUID";
ctrl.data = [
{market:"EastCoastEast CoastEast CoastEast Coast", zone:"1", network:"MTV", window_start_utc: Date.now(), breakUUID: Date.now(), expected_break_time:"TodayToday", break_number:"1", spotUUID:"29389283983298298", break_position:"NA", spot_duration:"NA", spot_id:"2", dc:"3", df:"4", pdn:"NA", pdn2:"NA", pdn3:"NA"},
{market:"West Coast", zone:"289898", network:"A&E", window_start_utc: Date.now(), breakUUID: Date.now(), expected_break_time:"Today", break_number:"1", spotUUID:"hello", break_position:"NA", spot_duration:"29389283983298298", spot_id:"3", dc:"NA", df:"NA", pdn:"NA", pdn2:"NA", pdn3:"NA"},
{market:"South Coast", zone:"39898", network:"SCIFY", window_start_utc: Date.now(), breakUUID: Date.now(), expected_break_time:"Today", break_number:"1", spotUUID:"hello", break_position:"NA", spot_duration:"29389283983298298", spot_id:"5", dc:"NA", df:"NA", pdn:"NA", pdn2:"NA", pdn3:"NA"},
{market:"North Coast", zone:"989894", network:"HBO", window_start_utc: Date.now(), breakUUID: Date.now(), expected_break_time:"Today", break_number:"1", spotUUID:"hello", break_position:"NA", spot_duration:"29389283983298298", spot_id:"6", dc:"NA", df:"NA", pdn:"NA", pdn2:"NA", pdn3:"NA"},
{market:"East Coast", zone:"5989898", network:"CINEMAX", window_start_utc: Date.now(), breakUUID: Date.now(), expected_break_time:"Today", break_number:"1", spotUUID:"hello", break_position:"NA", spot_duration:"29389283983298298", spot_id:"4", dc:"NA", df:"NA", pdn:"NA", pdn2:"NA", pdn3:"NA"},
{market:"East Coast", zone:"6989898", network:"Cartoon", window_start_utc: Date.now(), breakUUID: Date.now(), expected_break_time:"Today", break_number:"1", spotUUID:"hello", break_position:"NA", spot_duration:"29389283983298298", spot_id:"NA", dc:"NA", df:"NA", pdn:"NA", pdn2:"NA", pdn3:"NA"}
];
// ctrl.millisToUTCDate = DateService.millisToUTCDate;
ctrl.results = [];
ctrl.pageDone = false;
ctrl.loading_results = false;
ctrl.search_enabled = false;
ctrl.searching = false;
ctrl.sort_by = {
col:'market',
reverse: true
};
ctrl.dropdowns = {
air_dates:[],
syscodes:[]
};
ctrl.selections = {
air_date:null,
syscode:null
};
ctrl.syscodes = [];
ctrl.sort = function(sort_col){
if(ctrl.sort_by.col === sort_col){
ctrl.sort_by.reverse = !ctrl.sort_by.reverse;
} else {
ctrl.sort_by.col = sort_col;
ctrl.sort_by.reverse = false;
}
};
// ctrl.commaFilter = StringService.commaFilter;
ctrl.selectSyscode = function(){
ctrl.search_enabled = true;
ctrl.dropdowns.syscodes = [];
ReportService.getSyscodes(ctrl.selections).then(function(response){
ctrl.dropdowns.syscodes = response.data;
console.log(response.data);
});
};
ctrl.search = function () {
var defer = $q.defer();
if (ctrl.search_enabled) {
ctrl.searching = true;
ctrl.error = false;
ctrl.sort_by = {
col: 'expected_break_time',
reverse: true
};
ctrl.filters = undefined;
ReportService.getAssets(ctrl.selections).then(function (response) {
ctrl.results = response.data;
ctrl.searched_once = true;
ctrl.searching = false;
defer.resolve('searched');
}, function (error) {
defer.reject('search-error');
ctrl.error = true;
ctrl.searching = false;
ctrl.error_data = error;
});
} else {
defer.resolve('no-search');
}
return defer.promise;
};
ctrl.downloadCSV = function(){
if(ctrl.searched_once && !ctrl.searching && ctrl.results != null && ctrl.results.length != 0){
$window.open('/api/playouts/download-assets-csv?air_date='+ctrl.selections.air_date+'&syscode='+ctrl.selections.syscode);
}
};
//Calls initial air dates
var init = function(){
ReportService.getAirDates().then(function(response){
ctrl.dropdowns.air_dates = response.data;
console.log(response.data);
ctrl.pageDone = true;
});
};
init();
}
angular.module('command-center-app').controller('ReportsController', ReportsController);
以及错误消息
TypeError: Cannot read property 'filter' of undefined
at updateSelectionLists (angular-multiselect.js?nocache=${buildNumber}:71)
at NgModelController.$ngModelCtrl.$render (angular-multiselect.js?nocache=${buildNumber}:88)
at ngModelWatch (angular-1.5.3.js?nocache=${buildNumber}:26738)
at Scope.$digest (angular-1.5.3.js?nocache=${buildNumber}:16860)
at Scope.$apply (angular-1.5.3.js?nocache=${buildNumber}:17133)
at done (angular-1.5.3.js?nocache=${buildNumber}:11454)
at completeRequest (angular-1.5.3.js?nocache=${buildNumber}:11652)
at XMLHttpRequest.requestLoaded (angular-1.5.3.js?nocache=${buildNumber}:11593)
(anonymous) @ angular-1.5.3.js?nocache=${buildNumber}:13424
(anonymous) @ angular-1.5.3.js?nocache=${buildNumber}:10137
$digest @ angular-1.5.3.js?nocache=${buildNumber}:16887
$apply @ angular-1.5.3.js?nocache=${buildNumber}:17133
done @ angular-1.5.3.js?nocache=${buildNumber}:11454
completeRequest @ angular-1.5.3.js?nocache=${buildNumber}:11652
requestLoaded @ angular-1.5.3.js?nocache=${buildNumber}:11593
angular-1.5.3.js?nocache=${buildNumber}:13424
TypeError: Cannot read property 'slice' of undefined
at updateSelectionLists (angular-multiselect.js?nocache=${buildNumber}:69)
at angular-multiselect.js?nocache=${buildNumber}:92
at angular-1.5.3.js?nocache=${buildNumber}:26614
at forEach (angular-1.5.3.js?nocache=${buildNumber}:321)
at NgModelController.$$writeModelToScope (angular-1.5.3.js?nocache=${buildNumber}:26612)
at writeToModelIfNeeded (angular-1.5.3.js?nocache=${buildNumber}:26605)
at angular-1.5.3.js?nocache=${buildNumber}:26599
at validationDone (angular-1.5.3.js?nocache=${buildNumber}:26526)
at processAsyncValidators (angular-1.5.3.js?nocache=${buildNumber}:26509)
at NgModelController.$$runValidators (angular-1.5.3.js?nocache=${buildNumber}:26453)
最佳答案
我检查了多选页面，您缺少一些属性:
<multiselect ng-model="selection" options="options" id-prop="id" display-prop="name">
</multiselect>
id-prop 应该是您想要选择“区域”的任何内容，我认为在您的情况下。还有显示 Prop ，我认为在您的情况下也是“区域”。示例:
<multiselect ng-model="selection" options="data" id-prop="zone" display-prop="zone">
</multiselect>
如果可以的话，如果这不能满足您的需求，您可以选择:Another multiselect
关于javascript - Angular 1.5无法读取未定义的属性切片和过滤器，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/43523715/