AngularJS中如何使用$http对MongoLab数据表进行增删改查
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2022-05-30 21:26:05
主页面：
主页面：
<button ng-click="loadcourse()">load course</button> <button ng-click="toggleaddcourse(true)">add new course</button> <ng-includce src="'course_list.html'"></ng-include> <ng-include src="'add_course.html'" ng-show="toggleaddcourseview"></ng-include> <ng-include src="'edit_course.html'" ng-show="toggleeditcourseview"></ng-include>
以上，页面上显示course_list.html，add_course.html和edit_course.html的内容显示与toggleaddcourseview和toggleeditcourseview值有关，而toggleaddcourseview和toggleeditcourseview值将通过方法来控制。
在mongolab上创建数据库和表
→ https://mongolab.com
→ 注册
→ 登录
→ create new
→ 选择single-node
勾选sandbox,输入database name的名称为myacademy。
→ 点击新创建的database
→ 点击add collection
名称为course
→ 点击course这个collection。
→ 多次点击add document，添加多条数据
控制器
$scope.courses = [];
var url = "https://api.mongolab.com/api/1/databases/my-academy/collections/course?apikey=myapikey";
var config = {params: {apikey: "..."}};
$scope.toggleaddcoursenew = false;
$scope.toggleeditcourseview = false;
//列表
$scope.loadcourses = function(){
$http.get(url, config)
.success(function(data){
$scope.courses = data;
});
}
//添加
$scope.addcourse = function(course){
$http.post(url, course, config)
.success(function(data){
$scope.loadcourses();
})
}
//显示修改
$scope.editcourse = function(course){
$scope.toggleeditcourseview = true;
$scope.coursetoedit = angular.copy(course);
}
//修改
$scope.updatecourse = function(coursetoedit){
var id = coursetoedit._id.$oid;
$http.put(url + "/" + id, coursetoedit, config)
.success(fucntion(data){
$scope.loadcourses();
})
}
//删除
$scope.deltecourse = function(course){
var id = course._id.$oid;
$http.delete(url+ "/" + id, config)
.success(function(data){
$scope.loadcourses();
})
}
$scope.toggleaddcourse = function(flag){
$scope.toggleaddcourseview = flag;
}
$scope.toggleeditcourse = fucntion(flag){
$scope.toggleeditcourseview = flag;
}
course_list.html 列表
<tr ng-repeat="course in courses">
<td>{{$index+1}}</td>
<td>{{course.name}}</td>
<td>{{course.category}}</td>
<td>{{course.timeline}}</td>
<td>{{course.price | currency}}</td>
<td><button ng-click="editcourse(course)">edit</button></td>
<td><button ng-click="deletecourse(course)">delete</button></td>
</tr>
add_course.html 添加
<form> <input type="text" ng-model = "course.name" /> <select ng-model="course.category"> <option>-select-</option> <option value="development">development</option> <option value="business">business</option> </select> <input type="number" ng-model="course.timeline" /> <input type="number" ng-model="course.price"/> <button ng-click="addcourse(course)">add</button> <button ng-click="toggleaddcourse(false)">cancel</button> </form>
edit_course.html 更新
<form> <input type="text" ng-model="coursetoedit.name" /> <select ng-model ="coursetoedit.category"> <option>-select-</option> <option value="development">development</option> <option value="business">business</option> </select> <input type="number" ng-model="coursetoedit.timeline"/> <input type="number" ng-model="coursetoedit.price"/> <button ng-click="updatecourse(coursetoedit)">update</button> <button ng-click="toggleeditcourse(false)">cancel</button> </form>
以上所述是小编给大家分享的angularjs中如何使用$http对mongolab数据表进行增删改查的相关知识，希望对大家有所帮助。