Angular - multiple ng repeat in table

问题

[EDIT : Solved but i think there's a better way, if you find it, i'm still interested]

I have a list of banks. Each bank contains a list of accounts. Each accounts contains a list of operations.

I would like to display all the operations in a table.

Here's what the bank list looks like :

$scope.banks = [
    {
        id: 1,
        name: 'bank_1',
        accounts: [
            {
                id: 1,
                name: 'account_1',
                operations: [
                    {id: 1, name:'operation_1', price:100},
                    {id: 2, name:'operation_2', price:200},
                    {id: 3, name:'operation_3', price:300},
                    {id: 4, name:'operation_4', price:400}
                ]
            },
            {
                id: 2,
                name: 'account_2',
                operations: [
                    {id: 5, name:'operation_5', price:100},
                    {id: 6, name:'operation_6', price:200},
                    {id: 7, name:'operation_7', price:300},
                    {id: 8, name:'operation_8', price:400}
                ]
            }
        ]
    },
    {
        id: 2,
        name: 'bank_2',
        accounts: [
            {
                id: 3,
                name: 'account_3',
                operations: [
                    {id: 9, name:'operation_9', price:100},
                    {id: 10, name:'operation_10', price:200},
                    {id: 11, name:'operation_11', price:300},
                    {id: 12, name:'operation_12', price:400}
                ]
            },
            {
                id: 4,
                name: 'account_4',
                operations: [
                    {id: 13, name:'operation_13', price:100},
                    {id: 14, name:'operation_14', price:200},
                    {id: 15, name:'operation_15', price:300},
                    {id: 16, name:'operation_16', price:400}
                ]
            }
        ]
    }
];

In order to display that properly with Angular i wanted to make something like that :

<table>
    <tr>
        <th>Banque</th>
        <th>Account</th>
        <th>ID OP</th>
        <th>Name</th>
        <th>Price</th>
    </tr>

    <div ng-repeat="bank in banks">
        <div ng-repeat="account in bank.accounts">
            <div ng-repeat="operation in account.operations">
                <tr>
                    <td>{{banque.name}}</td>
                    <td>{{account.name}}</td>
                    <td>{{operation.id}}</td>
                    <td>{{operation.name}}</td>
                    <td>{{operation.price}}</td>
                </tr>
            </div>
        </div>
    </div>

</table>

But i know it's not correct to break the table > tr > td.

After some researches, i think i may have to use the ng-repeat-start, ng-repeat-end directive but i don't understand how and i'm not even sure it's the good thing to do.

If you have any idea how to solve that i'd be glad to hear your solution.

回答1:

This can be easily achieved by creating custom filter that will return the list of operation.

Filter

.filter('filterData', function(){
  return function(data, firstParam, secondParam){
    var returnData = [];
    angular.forEach(data, function(value, index){
      angular.forEach(value[firstParam], function(val, ind){
        angular.forEach(val[secondParam], function(v, i){
          returnData.push(v)
        });
      });
    });
    return returnData;
  }
});

Markup

<table>
  <tr>
    <th>ID</th>
    <th>Name</th>
    <th>Price</th>
  </tr>
  <tr ng-repeat="operation in banks| filterData: 'accounts': 'operations'">
    <td>{{operation.id}}</td>
    <td>{{operation.name}}</td>
    <td>{{operation.price}}</td>
  </tr>

</table>

Working Plunkr Here

Hope this could help you, Thanks.

回答2:

Thx you saved my day.

I enhance your solution because filterData function is running twice (for each element of $scope.banks array).

Prefers ng-init in tbody container of tr_ngrepeat.

<table>
 <thead>
   <tr>
    <th>ID</th>
    <th>Name</th>
    <th>Price</th>
  </tr>
 </thead>
 <tbody ng-init="operationlist=(banks|filterData: 'accounts': 'operations')">
  <tr ng-repeat="operation in operationlist">
    <td>{{operation.id}}</td>
    <td>{{operation.name}}</td>
    <td>{{operation.price}}</td>
  </tr>
 </tbody>
</table>

来源：https://stackoverflow.com/questions/29074747/angular-multiple-ng-repeat-in-table