使用AngularJS ui-grid $ scope.saveRow保存行数据

Question

使用AngularJS ui-grid $ scope.saveRow保存行数据

And*_*rew 6 angularjs angular-ui angular-ui-grid

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.

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>

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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

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我的问题是关于$ scope.saveRow方法.我查看了这里的文档并尝试在google上搜索(对于ui-grid来说并不多)但我仍然处于死胡同,因为我对此有点缺乏经验并且我不确定如何编码这恰好与承诺.

将在此后面运行一个MVC应用程序,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,但是,再次,我对如何编写函数感到茫然.显然,包含在示例中的"假"承诺不足以让我掌握我需要做的事情.我最初尝试了以下内容:

$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");
    }
};

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但这只会在我的控制台中抛出一个异常,即在引发saveRow事件时未返回promise.

Answer 1

pun*_*ist 8

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);
}

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没有理由创造新的承诺.只需返回$ http提供的承诺 (2认同)

Answer 2

Mar*_*ton 6

我不允许发表评论所以我必须提交答案.上面的答案是不正确的,因为不需要$ scope.gridApi.grid参数来设置setSavePromise函数.虽然该函数确实需要一个grid参数,但是在.apply调用期间它由包装器添加.

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