使用 AngularJS ui-grid $scope.saveRow 保存行数据 [英] Saving row data with AngularJS ui-grid $scope.saveRow
问题描述
我正在开发一个小型前端应用程序，它将在 ui-grid 中显示各种产品运输数据.
I'm working on a small frontend application which will show various product shipping data in a ui-grid.
我有以下代码:
HTML:
<body ng-controller="MyCtrl">
<p ng-repeat="row in myData">{{row.name}} works at {{row.company}}</p>
<button type="button" class="btn btn-success" ng-click="getCurrentFocus()">Get Current focused cell</button> <span ng-bind="currentFocused"></span>
<br/>
<br/>
<div id="grid1" ui-grid="gridOptions" external-scopes="editRows" ui-grid-edit ui-grid-row-edit ui-grid-pinning ui-grid-paging ui-grid-cellnav class="grid"></div>
</body>
AngularJS:
var app = angular.module('webapps', ['ngAnimate', 'ui.grid', 'ui.grid.edit', 'ui.grid.rowEdit', 'ui.grid.pinning', 'ui.grid.paging', 'ui.grid.cellNav']);
app.controller('MyCtrl', ['$scope', '$http', '$q', '$interval', function ($scope, $http, $q, $interval) {
//Column definitions
$scope.columns = [
{ field: 'name', displayName: 'First Name', width: 300},
{ field: 'lastname', displayName: 'Last Name', width: 300 },
{ field: 'email', displayName: 'Email', width: 300 },
{ field: 'company', displayName: 'Company', width: '50%' }
];
//Options for displaying the grid
$scope.gridOptions = {
data: 'myData',
enableCellEditOnFocus: false,
pagingPageSizes: [2, 5, 7],
pagingPageSize: 5,
enableSorting: true,
enableGridMenu: true,
columnDefs: $scope.columns,
onRegisterApi: function (gridApi) {
$scope.gridApi = gridApi;
//var cellTemplate = '<button class="btn primary" ng-click="getExternalScopes().showMe(rowCol.row.entity)">Edit</button>'; //'ui-grid/selectionRowHeader'; // you could use your own template here
//$scope.gridApi.core.addRowHeaderColumn({ name: 'rowHeaderCol', displayName: '', width: 50, pinnedLeft: true, cellTemplate: cellTemplate });
gridApi.rowEdit.on.saveRow($scope, $scope.saveRow);
}
};
// Save row data on edit 1 - TESTING
$scope.saveRow = function (rowEntity) {
// create a fake promise - normally you'd use the promise returned by $http or $resource
var promise = $http.post("Webapps/Home/SaveRow");
$scope.gridApi.rowEdit.setSavePromise($scope.gridApi.grid, rowEntity, promise.promise);
console.log(rowEntity);
// fake a delay of 3 seconds whilst the save occurs, return error if gender is "male"
$interval(function () {
if (rowEntity.lastname === ' ') {
promise.reject();
} else {
promise.resolve();
}
}, 3000, 1);
};
}]); // End of MyCtrl
我的问题是关于 $scope.saveRow 方法.我查看了文档 here 并尝试在 google 上搜索(没有多少用于 ui-grid)但我仍然遇到了死胡同，因为我对此有点缺乏经验，而且我不确定如何使用 Promise 正确编码.
My question is in regards to the $scope.saveRow method. I've looked over the documentation here and tried searching on google (not much out there for ui-grid) but I'm still hitting a dead end as I'm a bit inexperienced with this and I'm not sure how to code this properly with promises.
将有一个 MVC 应用程序在其后面运行，它将处理将数据推送到前端并将表编辑保存到 SQLServer 数据库.显然，我想要做的是让这个 $scope.saveRow 函数正确地将 rowEnttiy 数据发送回我的 MVC 应用程序，但同样，我不知道如何编写该函数.显然，示例中包含的虚假"承诺不足以让我了解我需要做什么.我最初尝试了以下方法:
There will be an MVC app running behind this which will handle pushing the data to the front end and saving table edits to a SQLServer db. Obviously what I'd like to do is have this $scope.saveRow function properly send the rowEnttiy data back to my MVC app but, again, I'm at a loss for how to code the function. The "fake" promises included in the example aren't enough for me to get a grasp on what I need to do, apparently. I initially tried the following:
$scope.saveRow = function (rowEntity) {
try {
// Need actual URL for post...controller has to accept 'row'
$http.post("Webapps/Home/SaveRow", { row: rowEntity }).success(function (data, status, headers, config) {
console.log("post success");
console.log(rowEntity);
}).error(function (data, status, headers, config) {
console.log("post failure");
console.log(rowEntity);
});
} catch (e) {
alert("Something went wrong");
}
};
但这只会在我的控制台中引发异常，即在引发 saveRow 事件时未返回承诺.
but this only throws an exception in my console that a promise was not returned when the saveRow event is raised.
推荐答案
您通常会在单独的存储库中执行 promise/api 调用，但基本上您正在寻找的代码是这样的:
You would normally do the promise/api call in a separate repository, but basically the code you are looking for is something like this:
$scope.saveRow = function( rowEntity ) {
var promise = $scope.someRepositoryFunction(rowEntity);
$scope.gridApi.rowEdit.setSavePromise($scope.gridApi.grid, rowEntity, promise);
// fake a delay of 3 seconds whilst the save occurs, return error if gender is "male"
//$interval( function() {
// if (rowEntity.firstName === 'male' ){
// promise.reject();
// } else {
// promise.resolve();
// }
//}, 3000, 1);
};
$scope.someRepositoryFunction = function(row) {
return $http.put('/Home/UpdateRow',row);
}
这篇关于使用 AngularJS ui-grid $scope.saveRow 保存行数据的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
