[英]AngularJs Filter: Generating notArray errors
I'm having an issue with a filter in my angularJS project. 我的angularJS项目中有一个过滤器问题。
We have a simple draft feature that allows users to save the contents of a large form as a JSON string in our database. 我们有一个简单的草稿功能,允许用户将大型表单的内容保存为数据库中的JSON字符串。 They then can go to a section of the site to display and continue working on these forms. 然后,他们可以访问网站的某个部分以显示并继续处理这些表单。 I want to provide them a filter on that page to filter by the date they saved the draft on. 我想在该页面上为他们提供一个过滤器,以便按照他们保存草稿的日期进行过滤。
Here is my markup: 这是我的标记:
<div ng-controller="savedFormCtrl" ng-cloak id="saved-form-wrapper"
class="border border-dark border-top-0 border-right-1 border-bottom-1
border-left-1 px-0" ng-init="getSavedForms()"
>
<!-- Search filters -->
<form name="savedFormsFilterWrapper" layout="row" flex="35" layout-align="end center" class="toolbar-search">
<!-- Date filter -->
<md-input-container flex="80">
<div class="text-light font-weight-bold float-left">Filter by saved date:</div>
<md-tooltip style="font-size:1em;">Filter your saved HRTF's</md-tooltip>
<md-datepicker name="dateFilter" class="hrtf-date savedFilterDatepicker"
md-date-locale="myLocale" data-ng-model="savedFormFilters" ng-blur="setFilterDate()"
md-placeholder="" md-open-on-focus
aria-label="Saved forms date filter">
</md-datepicker>
</md-input-container>
</form>
<!-- Saved forms body -->
<div id="savedFormAcc" class="accordion col-md-12 pt-3">
<!-- Accordion item Header -->
<div class="card" ng-repeat="item in savedForms | filter:savedFormFilters">
<div class="card-header savedFormItem" id="savedForm{{$index}}" data-toggle="collapse" data-target="#collapse{{$index}}">
<md-button class="md-raised md-primary" data-toggle="collapse"
data-target="#collapse{{$index}}" aria-expanded="false"
aria-controls="collapse{{index}}"
>
Form Saved on {{ item.savedOn }} - Click to expand
</md-button>
</div>
<!-- Accordion body continues on below -->
</div>
</div>
And my JS: 我的JS:
(function () {
'use strict';
angular.module('hrtf')
.controller('savedFormCtrl', ['$scope', '$window', 'formService',
function savedFormCtrl($scope, $window, formService) {
$scope.savedFormFilters = '';
//Get users's saved forms
$scope.savedForms = {};
$scope.getSavedForms = function(){
formService.getSavedForms()
.then(saved => {
saved.forEach( item =>{
item.data_json = JSON.parse(item.data_json);
});
$scope.savedForms = saved;
return $scope.savedForms;
};
}
]);
})();
Now, the filter works. 现在,过滤器工作。 But whenever The page is loaded, anywhere from 20-50 errors appear, all with the contents Error: [filter:notarray] Expected array but received: {} 但无论何时加载页面,都会出现20-50个错误,所有内容都有错误:[filter:notarray]预期数组但收到:{}
All I need to do here is provide a simple filter on a string value to the parent objects savedOn: xxData Herexx value. 我需要做的就是为父对象savedOn:xxData Herexx值提供一个字符串值的简单过滤器。
What am I doing wrong? 我究竟做错了什么?
Turns out, I had a similar issue to this post 事实证明,我在这篇文章中遇到了类似的问题
Basically, my ng-repeat and filter were initializing before the associated model could load. 基本上,我的ng-repeat和过滤器在相关模型加载之前进行了初始化。 Initializing the model as a blank array and then creating the filter as part of the promise chain did the trick: 将模型初始化为空白数组,然后将过滤器作为promise链的一部分创建,可以实现:
//Get users's saved forms
$scope.savedForms = [];
$scope.getSavedForms = function(){
formService.getSavedForms()
.then(saved => {
//Convert and format items here
$scope.savedForms = saved;
$scope.savedFormFilters = { savedOn: ''};
return $scope.savedForms;
}).catch(e => { console.error(e);
});
};
Pretty basic, but I'll leave it here in case it helps someone in the future :) 非常基本,但我会留在这里,以防它将来帮助某人:)
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