物聯網平台設計心得:DateTimePicker實現選擇聯動

來源:互聯網
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所謂的選擇聯動,就是指,當我DateTimePicker1選擇2月4號的時候,我DateTimePicker2隻能選擇2月4號和2月5號兩天,當然你可以自行規定要選擇的日期。這在一些圖表查詢條件裡面是很常用的一個功能。下面我們就來看看如何設計。

DateTimePicker的選取與使用

在這裡,我們使用的DateTimePicker是一個開源的組件,他的model名稱為:ui.bootstrap.datetimepicker,我們可以去這個網址找到其相關的內容:http://dalelotts.github.io/angular-bootstrap-datetimepicker/,然後下載其相應的包,最後放到項目中,並進行引用即可(注意不能少了moment.js,它是構建與這個組件的基礎上):

    <!--DateTimePicker Part-->    <link href="~/Content/front/angular-datetimepicker/css/datetimepicker.css" rel="stylesheet" />    <script src="~/Content/front/angular-datetimepicker/js/moment.js"></script>    <script src="~/Content/front/angular-datetimepicker/js/zh-cn.js"></script>    <script src="~/Content/front/angular-datetimepicker/js/datetimepicker.js"></script>

然後在module中進行註冊:

var app = angular.module(‘dsBootstrap‘, [                                        ‘ui.grid‘,                                        ‘ui.grid.selection‘,                                        ‘ui.grid.pagination‘,                                        ‘ngCookies‘,                                        ‘ui.bootstrap.datetimepicker‘                                        ]);

最後在HTML頁面進行排版布局使用即可:

  <div class="row" ng-show="visible">            <div class="col-md-4">                <div class="input-group">                    <span class="input-group-addon" id="basic-addon1">開始時間:</span>                    <div class="dropdown">                        <a class="dropdown-toggle" id="starttime" role="button" data-toggle="dropdown" data-target="#" href="#">                            <div class="input-group">                                <input type="text" class="form-control" data-ng-model="starttime|date:‘yyyy-MM-dd‘ "><span class="input-group-addon"><i class="glyphicon glyphicon-calendar"></i></span>                            </div>                        </a>                        <ul class="dropdown-menu" role="menu" aria-labelledby="dLabel">                            <datetimepicker data-ng-model="starttime" data-on-set-time="onTimeSet(newDate, oldDate)" data-datetimepicker-config="{ dropdownSelector: ‘#starttime‘,startView:‘day‘, minView:‘day‘ }" />                        </ul>                    </div>                </div>            </div>            <div class="col-md-4">                <div class="input-group">                    <span class="input-group-addon" id="basic-addon1">結束時間:</span>                    <div class="dropdown">                        <a class="dropdown-toggle" id="endtime" role="button" data-toggle="dropdown" data-target="#" href="#">                            <div class="input-group">                                <input type="text" class="form-control" data-ng-model="endtime|date:‘yyyy-MM-dd‘ "><span class="input-group-addon"><i class="glyphicon glyphicon-calendar"></i></span>                            </div>                        </a>                        <ul class="dropdown-menu" id="endContainer" role="menu" aria-labelledby="dLabel">                                                    </ul>                    </div>                </div>            </div>                   </div>

這樣我們就完成了第一步的工作了。從上面的Html代碼我們可以看出,starttime和endtime是傳遞到controller中的所選擇的日期值。而且我們的endtime DateTimePicker我們並沒有放到前台,我們需要在後台動態產生。為什麼呢?因為我們需要根據StartTime的選取值,來計算出endTime的選取範圍,所以這裡需要動態產生綁定。

DateTimePicker的聯動

下面我們開始設計其聯動工作。

首先,當選擇開始時間後,會進入onTimeSet事件,在這個事件中,我們先動態產生結束時間選取器:

    $scope.onTimeSet = function (newDate, oldDate) {        var startTimeFmt = moment($scope.starttime).format("YYYY-MM-DD");        var endTimeFmt = moment(startTimeFmt).add(1, ‘day‘).format("YYYY-MM-DD");             //時間框置空        $("#endtime input").val("");        //移除原有的datetimepicker對象        $("#endContainer").children().remove();        //設定config        $scope.config = { dropdownSelector: "#endtime", startView: "day", minView: "day" };        //動態編譯datetimepicker directive        var compiledeHTML = $compile(‘<datetimepicker data-ng-model="endtime"  data-before-render="beforeRender($view, $dates, $leftDate, $upDate, $rightDate)" data-datetimepicker-config="{{config}}" />‘)($scope);        //放入html容器        $("#endContainer").append(compiledeHTML);    }

然後,當上面的方法執行到$compile的時候,就會觸發其beforeRender事件,此事件允許在控制項載入前,進行一些相關操作。我們利用這個事件,拋出一個days-check事件,以便動態載入時間範圍:

    //當選擇開始時間,會進入onTimeSet事件,執行到$compile的時候,就會觸發下面的beforeRender事件    //觸發beforeReder事件後,會拋出一個days-check事件出去,並附帶所有的當頁時間對象。    $scope.beforeRender = function ($view, $dates, $leftDate, $upDate, $rightDate) {        $timeout(function () {            $scope.$broadcast(‘days-check‘, $dates);        });    }

最後,我們接收這個事件:

    //接收事件,並重設頁面    $scope.$on(‘days-check‘, function (e, d) {        for (var i = 0; i < d.length; i++) {            //初始設定為不可選狀態,不選中狀態            d[i].active = false;            d[i].selectable = false;            //當前loop的值            var currentDate = moment(d[i].utcDateValue).format("YYYY-MM-DD");            //當前選定的開始時間            var startTimeFmt = moment($scope.starttime).format("YYYY-MM-DD");            //允許選定的最大的結束時間            var endTimeFmt = moment(startTimeFmt).add(1, ‘day‘).format("YYYY-MM-DD");            //比較並設定可選日期            if (currentDate >= startTimeFmt && currentDate <= endTimeFmt) {                d[i].selectable = true;            }        }    });

當我們收到這個days-check事件的時候,我們會首先重設所有日期為不可選狀態,然後根據預先設定的值,來確定選取範圍。 這樣,通過上面的設定,我們的結束時間就能根據開始時間的選擇而進行聯動了。是不是很方便呢?最後附上controller總體代碼:

app.controller(‘collectorController‘, [‘$scope‘, ‘$cookies‘, ‘$timeout‘,‘$compile‘, ‘baseService‘, ‘collectorService‘, ‘uiGridConstants‘, function ($scope, $cookies,$timeout,$compile, baseService, collectorService, uiGridConstants) {    var self = this;    $scope.ProvinceData = null;    $scope.CityData = null;    $scope.DistrictData = null;    $scope.CompanyData = null;    $scope.MachineData = null;    $scope.RealTimeData = null;    $scope.HistoryData = null;    $scope.selectedProvince = null;    $scope.selectedCity = null;    $scope.selectedDistrict = null;    $scope.selectedCompany = null;    $scope.selectedMachine = null;    $scope.starttime = null;    $scope.endtime = null;    $scope.visible = false;  //datetimepicker是否顯示    //art.dialog({ title: ‘載入提示‘, icon: ‘face-smile‘, fixed: true,left:‘50%‘,top:0, time:3, content: "日期選擇跨度不要過大,否則會因為資料量過大而無法載入圖表和列表!", padding: 0 });    //監測省份的變化,如果發生了變化,則載入城市列表    $scope.$watchCollection(‘selectedProvince‘, function (oldval, newval) {        $scope.GetCityList();    });    //監測城市變化,如果發生了變化,則載入地區列表    $scope.$watchCollection(‘selectedCity‘, function (oldval, newval) {        $scope.GetDistrictList();    });    //監測地區變化,如果發生了變化,則載入公司列表    $scope.$watchCollection(‘selectedDistrict‘, function (oldval, newval) {        $scope.GetCompanyList();    });    //監測公司變化,如果發生了變化,則載入機器列表    $scope.$watchCollection(‘selectedCompany‘, function (oldval, newval) {        $scope.GetMachineList();    });    //繫結資料行表    $scope.gridOptions = {        enableRowSelection: true,        enableSelectAll: false,        selectionRowHeaderWidth: 35,        rowHeight: 35,        showGridFooter: false,        multiSelect: true,        enablePaginationControls: true,        paginationPageSizes: [9, 15, 20],        paginationPageSize: 9    };    $scope.gridOptions.columnDefs = [{ name: ‘Param_name‘, displayName: ‘參數名稱‘ },{ name: ‘Param_unit‘, displayName: ‘參數單位‘ },            { name: ‘Param_data‘, displayName: ‘參數值‘ },            { name: ‘Param_time‘, displayName: ‘採集時間‘ }    ];    $scope.gridOptions.onRegisterApi = function (gridApi) {        $scope.gridApi = gridApi;    };    //省份綁定    collectorService.GetProvinceData().then(function (data) {        var flag = data.data.success;        if (flag) {            $scope.ProvinceData = data.data.data;            $scope.selectedProvince = baseService.getSelectedDataMapper($scope.ProvinceData, ‘province‘);        }    }, null);    $scope.GetCityList = function () {        var selectedProvinceId;        if ($scope.selectedProvince != undefined)            selectedProvinceId = $scope.selectedProvince.id;        else            return;        //市區綁定        collectorService.GetCityData(selectedProvinceId).then(function (data) {            var flag = data.data.success;            if (flag) {                $scope.CityData = data.data.data;                $scope.selectedCity = baseService.getSelectedDataMapper($scope.CityData, ‘city‘);            }        }, null);    }    $scope.GetDistrictList = function () {        var selectedCityId;        if ($scope.selectedCity != undefined)            selectedCityId = $scope.selectedCity.id;        else            return;        //區縣綁定        collectorService.GetDistrictData(selectedCityId).then(function (data) {            var flag = data.data.success;            if (flag) {                $scope.DistrictData = data.data.data;                $scope.selectedDistrict = baseService.getSelectedDataMapper($scope.DistrictData, ‘district‘);            }        }, null);    }    $scope.GetCompanyList = function () {        var selectedDistrictId;        if ($scope.selectedDistrict != undefined)            selectedDistrictId = $scope.selectedDistrict.id;        else            return;        //公司綁定        collectorService.GetCompanyData(selectedDistrictId).then(function (data) {            var flag = data.data.success;            if (flag) {                $scope.CompanyData = data.data.data;                $scope.selectedCompany = baseService.getSelectedDataMapper($scope.CompanyData, ‘company‘);            }        }, null);    }    $scope.GetMachineList = function () {        var selectedCompanyId;        if ($scope.selectedCompany != undefined)            selectedCompanyId = $scope.selectedCompany.id;        else            return;        //裝置綁定        collectorService.GetMachineList(selectedCompanyId).then(function (data) {            var flag = data.data.success;            if (flag) {                $scope.MachineData = data.data.data;                $scope.selectedMachine = baseService.getSelectedDataMapper($scope.MachineData, ‘machine‘);            }        }, null);    }    //擷取即時資料    $scope.GetRealTimeDataByMachine = function () {        timeCheck($scope.starttime, $scope.endtime);        var starttimeFmt = timeFmt($scope.starttime);        var endtimeFmt = timeFmt($scope.endtime);        //擷取即時資料        var machineId = $scope.selectedMachine.machine_id;        collectorService.GetRealDataList(machineId).then(function (data) {            var flag = data.data.success;            if (flag) {                $scope.RealTimeData = data.data.data;            }        }, null);        //擷取列表資料        collectorService.GetHistoryDataList(machineId,starttimeFmt,endtimeFmt).then(function (data) {            var flag = data.data.success;            if(flag)            {                $scope.HistoryData = data.data.data;                $scope.gridOptions.data = data.data.list;            }        }, null);        //將級聯清單項目放到cookie中,以便於之後的操作簡易化        var expireDate = new Date();        expireDate.setDate(expireDate.getDate() + 7);        delete $cookies[‘frontselection‘];        var cookieData = JSON.stringify({            province: $scope.selectedProvince,            city: $scope.selectedCity,            district: $scope.selectedDistrict,            company: $scope.selectedCompany,            machine: $scope.selectedMachine        });        $cookies.put(‘frontselection‘, cookieData, { ‘expires‘: expireDate });    }    $scope.ClickToGetParamDataList = function (paramId) {              timeCheck($scope.starttime,$scope.endtime);        var starttimeFmt = timeFmt($scope.starttime);        var endtimeFmt = timeFmt($scope.endtime);        var machineId = $scope.selectedMachine.machine_id;        collectorService.GetHistoryDataListByParamId(machineId, paramId, starttimeFmt, endtimeFmt).then(function (data) {            var flag = data.data.success;            if (flag) {                $scope.gridOptions.data = data.data.list;            }        });    }    //顯示隱藏時間段選擇    $scope.ClickToShowTimePicker = function () {        $scope.visible = !$scope.visible;    }    $scope.onTimeSet = function (newDate, oldDate) {        var startTimeFmt = moment($scope.starttime).format("YYYY-MM-DD");        var endTimeFmt = moment(startTimeFmt).add(1, ‘day‘).format("YYYY-MM-DD");             //時間框置空        $("#endtime input").val("");        //移除原有的datetimepicker對象        $("#endContainer").children().remove();        //設定config        $scope.config = { dropdownSelector: "#endtime", startView: "day", minView: "day" };        //動態編譯datetimepicker directive        var compiledeHTML = $compile(‘<datetimepicker data-ng-model="endtime"  data-before-render="beforeRender($view, $dates, $leftDate, $upDate, $rightDate)" data-datetimepicker-config="{{config}}" />‘)($scope);        //放入html容器        $("#endContainer").append(compiledeHTML);    }    //接收事件,並重設頁面    $scope.$on(‘days-check‘, function (e, d) {        for (var i = 0; i < d.length; i++) {            //初始設定為不可選狀態,不選中狀態            d[i].active = false;            d[i].selectable = false;            //當前loop的值            var currentDate = moment(d[i].utcDateValue).format("YYYY-MM-DD");            //當前選定的開始時間            var startTimeFmt = moment($scope.starttime).format("YYYY-MM-DD");            //允許選定的最大的結束時間            var endTimeFmt = moment(startTimeFmt).add(1, ‘day‘).format("YYYY-MM-DD");            //比較並設定可選日期            if (currentDate >= startTimeFmt && currentDate <= endTimeFmt) {                d[i].selectable = true;            }        }    });    //當選擇開始時間,會進入onTimeSet事件,執行到$compile的時候,就會觸發下面的beforeRender事件    //觸發beforeReder事件後,會拋出一個days-check事件出去,並附帶所有的當頁時間對象。    $scope.beforeRender = function ($view, $dates, $leftDate, $upDate, $rightDate) {        $timeout(function () {            $scope.$broadcast(‘days-check‘, $dates);        });    }    var timeCheck = function(start,end)    {        if (start == null && end!=null)        {            art.dialog({ title: ‘提示‘, icon: ‘error‘, time: 6, content: "必須選擇開始日期,請重試!", padding: 0 });            return;        }        if (start!=null && end == null)        {            art.dialog({ title: ‘提示‘, icon: ‘error‘, time: 6, content: "必須選擇結束日期,請重試!", padding: 0 });            return;        }        if (start != null && end != null && start > end) {            art.dialog({ title: ‘提示‘, icon: ‘error‘, time: 6, content: "開始時間不能大於結束時間,請重試!", padding: 0 });            return;        }    }    var timeFmt = function(time)    {        if (time == null)            time = "";        else            time = time.toLocaleDateString();        return time;    }}]);

物聯網平台設計心得:DateTimePicker實現選擇聯動

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