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私はAngularJs、HTML、PHPを使用して書いています。アプリケーションでは、ドロップダウンリストがあり、オプションが選択されると、データベースから抽出された関連データがテーブルに読み込まれます。テーブルに情報を追加したり削除したりすることができます。それは完全に機能します。しかし、私が持っている課題は、テーブルを編集するたびにWebページの更新/ルートがリロードされ、ドロップダウンリストがデフォルト値に戻るということです。これの効果は、ユーザがテーブル上の各操作を実行するためにドロップダウンリスト値を手動で再選択する必要があることである。 最後に選択したオプション値を保持/保持し、ウェブページ/ルートのリロード時にドロップダウンリストオプションを選択するようにコードを変更するにはどうすればよいですか？Angularjsを使用してWebページをリフレッシュした後にドロップダウンリストの選択を維持する方法
私は、ドロップダウンリストの初期のデフォルト値を設定するのに役立つ多くのヘルプを見てきました。しかし、それは私が達成しようとしているものではありません。私は、ウェブページのリロード後にポストリロード値または値を設定しようとしています。
以下は私が試したことの一部です。私はそれを理解しようとしている私のwhitsの終わりにいます。どんな助けもありがとうございます。溶液による変化
<select id="b_year" ng-options="b.year for b in budgets track by b.year" ng-model="b.selectedBudget" ng-change="getBudgetItems(b.selectedBudget.year)" required><option value="">-- Choose budget year --</option></select>HTMLが
<select id="b_year" ng-options="b.year for b in budgets" ng-model="b.selectedBudget" ng-init="b.selectedBudget" ng-selected="getBudgetItems(b.selectedBudget.year)" required><option value="">-- Choose budget year --</option></select>EDIT
問題は
HTMLを解決しました
コントローラスニペットは、前の溶液と
$scope.reloadRoute();
$scope.items.push({'line_item': li.line_item, 'weight': li.weight, 'allocated': li.allocated});
localStorage['b_year'] = year; //Store the selected year in local storage for later use
budget_size = server.getBudgetSize();
for(var i = 0; i < budget_size; i++){
if($scope.budgets[i].year === localStorage['b_year']){
$scope.b.selectedBudget[i] = localStorage['b_year'];
}else{
}
}コントローラ
app.controller(.... {
....
(function(){
$http.get(//Get info on budgets
"http://localhost/TrGway/getbudgetinfo.php"
)
.success(function(data){
$scope.budgets = data.budgets;
for(var i = 0; i < data.budgets.length; i++){
if($scope.budgets[i].year === selectedYear){
$scope.b = {};
$scope.b.selectedBudget = $scope.budgets[i];
}
}
})
.error(function(data){
$scope.message = "Error!! Getting Budget Info Failed: " + data;
});
})();
....
$scope.$watch("b.selectedBudget.year", function(item) {
localStorage.setItem("selectedYear", item);
});
});App.controller('budgetCtrl', ['$scope', '$http', '$location', '$window', '$route', 'BudgetService', function($scope, $http, $location, $window, $route, BudgetService){
(function(){
$http.get(//Get info on budgets
"http://localhost/TrGway/getbudgetinfo.php"
)
.success(function(data){
server.setBudgets(data.budgets);//Set the budget info in the BudgetService for
\t \t \t \t \t \t \t \t \t \t //later usage anywhere in the program; \t
$scope.budgets = data.budgets;
budget_size = server.getBudgetSize();
server.getBudgetInfo();
})
.error(function(data){
$scope.message = "Error!! Getting Budget Info Failed: " + data;
});
})();
(function(){ //Get Line Items Info to populate the table
$http.get(
"http://localhost/TrGway/lineItemInfo.php"
)
.success(function(data){
server.setLineItems(data.items);
$scope.items = data.items;
server.getLineItemsInfo();
})
.error(function(data){
$scope.message = "Error!! Getting Line Items Info Failed: "+data;
});
})();
$scope.addBudget = function(budget){
if(budget.year < new Date().getFullYear()){
alert("Budgets cannot be created retroactively.\n\
\nPlease enter a budget year greater than "+ new Date().getFullYear());
$scope.budget.year = "";
}else{
server.addBudget(budget);
server.getBudgetInfo();
$scope.budgets = server.getBudgets();
$scope.budget = {};//Clear the add budget form
}
};
$scope.getBudgetItems = function(year){
\t /*This is where info on the budget for the selected year is retrieved and passed to the table
\t This works great every time*/
if(year === undefined){ //If no year is selected do nothing
$scope.budget_amount = 0;
$scope.budget_amount_used = 0;
$scope.budget_amount_remaining = 0;
}else{
Budgets = server.getBudgets();
budget_size = server.getBudgetSize();
for(var i = 0; i < budget_size; i++){
if(Budgets[i].year === year){
$scope.budget_amount = Budgets[i].starting_amount;
$scope.budget_amount_used = Budgets[i].amount_used;
$scope.budget_amount_remaining = Budgets[i].running_balance;
amount_remaining = Budgets[i].starting_amount - Budgets[i].amount_used;
percent_used += (Budgets[i].amount_used/Budgets[i].starting_amount * 100);
server.setSelectedBudget(Budgets[i]);
}else{
//$scope.budget_amount = 0;
}
}
server.setPercentUsed(percent_used);
server.setPercentRemaining(100 - percent_used);
server.setAmountRemaining(amount_remaining);
}
};
/*======================= THIS IS WHERE THE CHALLENGE IS ====================*/
$scope.addLineItem = function(li, b){
\t /*This is where the List items are added to the table before page reload*/
if(($scope.budget_amount_used-0 + li.allocated-0) > $scope.budget_amount){
alert("Budgeted amount exceeded!!!\nPlease consider revising");
$location.path('editbudget');
$scope.li.weight = 0;
$scope.li.allocation = 0;
}else{
\t \t \t server.setSelectedBudgetYear(b.selectedBudget.year); //Save selected year to a variable
\t \t \t server.addLineItem(li, b); //Add the new Line items row to database
\t \t \t $scope.reloadRoute();
\t \t \t $scope.items.push({'line_item': li.line_item, 'weight': li.weight, 'allocated': li.allocated});
\t \t \t $scope.b = {};
\t \t \t //$scope.b.selectedBudget = localStorage.getItem("selected");
\t \t \t $scope.$watch("b.selectedBudget.year", function(item) {
\t \t \t \t localStorage.setItem("selected", item);
\t \t \t });
//$scope.b.selectedBudget.year = server.getSelectedBudgetYear(); //I tried this also
}
$scope.li.line_item = "";
$scope.li.weight = 0;
$scope.li.allocation = 0;
\t \t $scope.b.selectedBudget = localStorage.getItem("selected");
\t \t
/* LEAVING THIS SO YOU CAN SEE WHAT ELSE I HAVE TRIED
\t \t $scope.b = {};
$scope.b.selectedBudget = localStorage.getItem("selectedBudget");
$scope.watch("b.selected", function(item) {
localStorage.setItem("selected", item);
});
\t \t $scope.b.selectedBudget = localStorage['b_year'];
*/
/* LEAVING THIS SO YOU CAN SEE WHAT ELSE I HAVE TRIED
\t \t budget_size = server.getBudgetSize();
for(var i = 0; i < budget_size; i++){
\t \t \t if($scope.budgets[i].year === server.getSelectedBudgetYear()){
\t \t \t \t $scope.b.selectedBudget.year = server.getSelectedBudgetYear();
\t \t \t }else{
\t \t \t \t
\t \t \t }
}*/
};
\t
\t $scope.deleteLineItem = function(row, b){
$http({
method: "post",
url: "http://localhost/TrGway/deleteLineItem.php",
crossDomain: true,
data:{
'seq': row.seq,
'year': row.year,
'allocated':row.allocated,
'starting_amount': b.selectedBudget.starting_amount,
'amount_used': b.selectedBudget.amount_used,
'running_balance': b.selectedBudget.running_balance
},
headers: {
'Content-Type': 'application/x-www-form-urlencoded'
}
})
.success(function(response){
if(response.toString() === "success"){ \t \t \t \t
var index = -1; \t \t
var itemsArr = eval($scope.items);
for(var i = 0; i < itemsArr.length; i++) {
if(itemsArr[i].seq === row.seq) {
index = i;
break;
}
}
if(index === -1) {
alert("Something has gone wrong!!\nLine item was not deleted.\nPlease try again");
}
server.reset();
server.reload();
$scope.budget_percent_used = server.getPercentUsed()-0;
$scope.budget_percent_remaining = server.getPercentRemaining()-0;
$scope.budget_amount_used = server.getAmountUsed()-0;
$scope.budget_amount_remaining = server.getAmountRemaining()-0;
server.setTotalWeighting($scope.totalweighting + row.weight)-0;
server.setPercentUsed(server.getTotalWeighting())-0;
server.setPercentRemaining(100 - server.getPercentUsed())-0;
$scope.items.splice(index, 1); //Remove the row with matching index/seq value
$scope.totalweighting = server.getTotalWeighting();
$scope.budget_percent_used = server.getPercentUsed()-0;
$scope.budget_percent_remaining = server.getPercentRemaining()-0;*/
$scope.reloadRoute();
}else{ //If deleting the line item failed
$location.path('editbudget');
$scope.budgetmessage = "Line Item Update Failed: "+response;
}
})
.error(function(response){ //If there was an error connecting to the server
$scope.budgetmessage = "Error!! Updating Line Item Failed: "+response;
});
row.isEditing = false;
};
$scope.updateLineItem = function(row){
$http({
method: "post",
url: "http://localhost/TrGway/updateLineItem.php",
crossDomain: true,
data:{
'seq': row.seq,
'line_item': row.line_item,
'weight': row.weight,
'allocated': row.allocated
},
headers: {
'Content-Type': 'application/x-www-form-urlencoded'
}
})
.success(function(response){
if(response.toString() === "success"){
$location.path('editbudget');
}else{
$location.path('editbudget');
$scope.budgetmessage = "Line Item Update Failed: "+response;
}
})
.error(function(response){
$scope.budgetmessage = "Error!! Updating Line Item Failed: "+response;
});
row.isEditing = false;
};
$scope.cancelLineItemEditing = function(row){
row.isEditing = false;
};
$scope.updateBudget = function(b){
$http({
method: "post",
url: "http://localhost/TrGway/updatebudget.php",
crossDomain: true,
data:{
'year': b.selectedBudget.year,
'starting_amount': b.edit_starting_amount
},
headers: {
'Content-Type': 'application/x-www-form-urlencoded'
}
})
.success(function(response){
if(response.toString() === "success"){
server.setStartingAmount(b.edit_starting_amount);
var line_items = server.getLineItems();
var start_amount = server.getStartingAmount();
var total_weight = 0;
var amount_used = 0;
var amount_remaining = 0;
var percent_used = 0;
var percent_remaining = 0;
for(var i = 0; i < line_items.length; i++){
//Update the line items on the page immediately
line_items[i].weight = (line_items[i].allocated/start_amount) * 100;
total_weight += line_items[i].weight;
amount_used += line_items[i].allocated-0;
//Update the line items in the database immediately
$scope.updateLineItem(line_items[i]);
}
server.load();
percent_used = (amount_used/start_amount) * 100;
amount_remaining = start_amount - amount_used;
percent_remaining = 100 - percent_used;
server.setLineItems(line_items);
server.setTotalWeighting(total_weight);
server.setAmountUsed(amount_used);
server.setPercentUsed(percent_used);
server.setAmountRemaining(amount_remaining);
server.setPercentRemaining(percent_remaining);
$scope.items = server.getLineItems();
$scope.total = 0;
$scope.total = server.getStartingAmount();
$scope.totalweighting = server.getTotalWeighting()-0;
$scope.budget_amount_used = server.getAmountUsed()-0;
$scope.budget_percent_used = server.getPercentUsed()-0;
$scope.budget_percent_remaining = server.getPercentRemaining()-0;
$scope.budget_amount_remaining = server.getAmountRemaining()-0;
$location.path('editbudget');
}else{
$location.path('editbudget');
$scope.budgetmessage = "Budget Update Failed: "+response;
}
})
.error(function(response){
$scope.budgetmessage = "Error!! Updating Budget Failed: "+response;
});
$scope.b = {};
};
$scope.reloadRoute = function(){
$route.reload();
server.reload();
\t //alert('Loaded!!');
};
}]);<div class="breadcrumbs" id="breadcrumbs">
<ul class="breadcrumb">
<li>Home</li>
<li class="active"><a href="">Add/Edit line Items</a></li>
<li style="float: right" ng-controller="authCtrl"><a ng-click="logout();">Logout</a></li>
<li style="float: right"><a href="#/dashboard">Back</a></li>
</ul>
</div>
<div class="row" ng-cloak="" ng-controller="budgetCtrl">
<div class="col-md-5">
<section>
<form name="LineItemForm" class="form-horizontal" role="form">
<fieldset>
<table class="table table-striped">
<thead>
<tr>
<th style="width: 150px" colspan="1">Select Budget Year To Edit Line Items</th>
</tr>
</thead>
<tbody>
<tr>
<td colspan="1">
<div class="col-md-7">
<!-- THIS IS WHERE THE YEAR IS SELECTED -->
<select id="b_year" ng-options="b.year for b in budgets track by b.year" ng-model="b.selectedBudget" ng-change="getBudgetItems(b.selectedBudget.year);" ng-selected="" required>
<option value="">-- Choose budget year --</option>
</select>
</div>
</td>
</tr>
<tr>
<th style="width: 150px" colspan="1">{{b.budgetmessage}}</th>
</tr>
<tr>
<td>
<h3>Add Line Item Here</h3>
<div class="form-group">
<label class="col-md-3 control-label no-padding-right" for="line_item">Line Item</label>
<div class="col-md-7">
<input type="text" class="form-control" name="line_item" id="line_item" ng-model="li.line_item" ng-disabled="!b.selectedBudget" required/>
</div>
</div>
<div class="form-group">
<label class="col-md-3 control-label no-padding-right" for="weight">weighting %</label>
<div class="col-md-7">
<input type="number:2" class="form-control" name="weight" id="weight" ng-init="li.weight = 0" ng-model="li.weight" ng-disabled="!b.selectedBudget || !li.line_item || li.line_item.length<5" required/>
</div>
</div>
<div class="form-group">
<label class="col-md-3 control-label no-padding-right" for="allocated">Allocated $</label>
<div class="col-md-7">
<input type="number:2" class="form-control" name="allocated" id="allocated" placeholder="{{li.allocated = (budget_amount * li.weight)/100 | currency}}" ng-init="li.allocated=0" ng-model="li.allocated" ng-disabled="!b.selectedBudget || !li.weight" required />
</div>
</div>
<div class="form-group" style="padding-right: 100px;">
<span class="lbl col-sm-5"> </span>
<div class="col-md-7 message" >
<span id="message" class="block input-icon input-icon-right">{{message}}</span>
</div>
</div>
<div class="form-group"> \t \t \t \t \t \t \t \t
<div style="padding-right:100px">
<button type="submit" class="width-35 pull-right btn btn-sm btn-primary" ng-click="addLineItem(li, b)" data-ng-disabled="LineItemForm.$invalid || li.weight===0 || li.line_item.length < 5">
Add Line Item
</button>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</fieldset>
</form>
</section>
</div>
<div>
<section>
<div class="col-lg-14" style="float: right">
<form>
<fieldset>
<table class="table table-striped" >
<thead>
<tr>
<!--<th>Index</th>-->
<th>Line Items</th><th style="width: 150px">% Weighting</th><th style="width: 150px">Allocation $</th><th style="width: 120px">Tasks</th><!---->
</tr>
</thead>
<tbody>
<tr data-ng-repeat="row in items" ng-model="items" ng-if="row.year === b.selectedBudget.year"><!--<td>{{$index+1}}</td>-->
<td title="'Line Item'" ng-switch="row.isEditing" ng-class="line_item.$dirty ? 'bg-warning' : ''" ng-form="name" demo-tracked-table-cell>
<span ng-switch-default class="editable-text">{{row.line_item}}</span>
<div class="controls" ng-class="line_item.$invalid && line_item.$dirty ? 'has-error' : ''" ng-switch-when="true">
<input type="text" name="line_item" ng-model="row.line_item" class="editable-input form-control input-sm" required />
</div>
</td>
<td>{{ row.weight = row.allocated/budget_amount * 100 | number: 2 }}</td>
<td title="'Allocation'" ng-switch="row.isEditing" ng-class="allocated.$dirty ? 'bg-warning' : ''" ng-form="allocated" demo-tracked-table-cell>
<span ng-switch-default class="editable-text">{{ row.allocated | currency }}</span>
<div class="controls" ng-class="allocated.$invalid && allocated.$dirty ? 'has-error' : ''" ng-switch-when="true">
<input type="text" name="allocated" ng-model="row.allocated" class="editable-input form-control input-sm" required/>
</div>
</td>
<td>
<button class="btn btn-primary btn-sm" ng-click="updateLineItem(row)" ng-if="row.isEditing" ng-disabled="rowForm.$pristine || rowForm.$invalid"><span class="glyphicon glyphicon-ok"></span></button>
<button class="btn btn-default btn-sm" ng-click="cancelLineItemEditing(row)" ng-if="row.isEditing"><span class="glyphicon glyphicon-remove"></span></button>
<button class="btn btn-default btn-sm" ng-click="row.isEditing = true" ng-if="!row.isEditing"><span class="glyphicon glyphicon-pencil"></span></button>
<button class="btn btn-danger btn-sm" ng-click="deleteLineItem(row, b)" ng-if="!row.isEditing"><span class="glyphicon glyphicon-trash"></span></button>
</td>
</tr>
<tr>
<td>
<h5>
<span class="block input-icon input-icon-right">
<b>TOTAL (Budget Estimate)</b>
</span>
</h5>
</td>
<td>
<h5>
<span class="block input-icon input-icon-right">
<b>{{ totalweighting = budget_amount > 0 ? 100 : 0 | number:2 }}%</b><!---->
</span>
</h5>
</td>
<td>
<h5>
<span class="block input-icon input-icon-right">
<b>{{ budget_amount | currency }}</b>
</span>
</h5>
</td><td></td>
</tr>
<tr>
<td>
<h5>
<span class="block input-icon input-icon-right">
<b>BUDGET AMOUNT USED</b>
</span>
</h5>
</td>
<td>
<h5>
<span class="block input-icon input-icon-right">
<b>{{ budget_percent_used = budget_amount_used > 0 ? budget_amount_used * 100/budget_amount : 0 | number:2 }}%</b>
<!--Adding the -0 forces the compiler to treat the value as a number-->
</span>
</h5>
</td>
<td>
<h5>
<span class="block input-icon input-icon-right">
<!--{{ budget_amount_used + li.allocated | currency }}-->
<b>{{ budget_amount_used | currency }}</b>
</span>
</h5>
</td><td></td>
</tr>
<tr>
<td>
<h5>
<span class="block input-icon input-icon-right">
<b>BUDGETED AMOUNT REMAINING</b>
</span>
</h5>
</td>
<td>
<h5>
<span class="block input-icon input-icon-right">
<b>{{ budget_percent_remaining = 100 - budget_percent_used | number:2 }}%</b>
<!--Adding the -0 forces the compiler to treat the value as a number-->
</span>
</h5>
</td>
<td>
<h5>
<span class="block input-icon input-icon-right">
<!--{{ budget_amount_remaining - li.allocated | currency }}-->
<b>{{ budget_amount_remaining | currency }}</b>
</span>
</h5>
</td><td></td>
</tr>
</tbody>
</table>
</fieldset>
</form>
</div>
</section>
</div>
</div>を変更する変更します
？ –
'$ scope.b.selectedBudget = localStorage ['b_year'];'ループと条件なしではいけませんか？ –
Tamas Hegedus、あなたのクイック返信をありがとう.. 2番目のスニペットは、javascriptファイル内のコントローラにあります。 – Christoph