Transferring information to a different scope

Question

Transferring information to a different scope

Here is the current code implementation:

$http.get("http://localhost/app/api/Suppliers").success(function(response) {
    $scope.dataSource = response;
    console.log($scope.dataSource);
    $scope.safeApply(function() {
        $scope.settings.columns[3] = $scope.dataSource;
    });
}); 


$scope.settings  = {
    colHeaders: ["Code", "Comments"],
    contextMenu : ["row_above","row_below","remove_row"],
    colWidths: [100, 100],
    columns : [
        {   type: 'dropdown',
            source: ['Not Started', 'In Progress', 'Completed']
        },
        {},
        {},
        {   type: 'dropdown',
            source: $scope.dataSource,
        }
    ]
};

The issue at hand is that $scope.dataSource is currently undefined, resulting in no data being displayed. How can this be resolved?

UPDATE: While the $http call successfully retrieves the data, the problem lies in the fact that when calling source: $scope.dataSource within the settings, it remains undefined.

javascript angularjs

Answer 1

Answer №1

When making a request to the server, the controller will compile and then the success function will be entered.

If you declare your array inside the success of your request, it's better to declare it outside like this:

$scope.dataSource = []

$http.get("http://localhost/app/api/Suppliers").success(function(response) {
    $scope.dataSource = response;
    console.log($scope.dataSource);
    $scope.safeApply(function() {
        $scope.settings.columns[3] = $scope.dataSource;
    });
});

UPDATE

Try this:

$http.get("http://localhost/app/api/Suppliers").success(function(response) {
      $scope.dataSource = response;
      console.log($scope.dataSource);

      getSetting();

      $scope.safeApply(function() {
        $scope.settings.columns[3] = $scope.dataSource;
      });
    });


    var getSetting = function() {
      $scope.settings = {
        colHeaders: ["Code", "Comments"],
        contextMenu: ["row_above", "row_below", "remove_row"],
        colWidths: [100, 100],
        columns: [{
          type: 'dropdown',
          source: ['Not Started', 'In Progress', 'Completed']
        }, {}, {}, {
          type: 'dropdown',
          source: $scope.dataSource,
        }]
      };
    }

Answer 2

When making a request to the server, the controller will compile and then the success function will be entered.

If you declare your array inside the success of your request, it's better to declare it outside like this:

$scope.dataSource = []

$http.get("http://localhost/app/api/Suppliers").success(function(response) {
    $scope.dataSource = response;
    console.log($scope.dataSource);
    $scope.safeApply(function() {
        $scope.settings.columns[3] = $scope.dataSource;
    });
});

UPDATE

Try this:

$http.get("http://localhost/app/api/Suppliers").success(function(response) {
      $scope.dataSource = response;
      console.log($scope.dataSource);

      getSetting();

      $scope.safeApply(function() {
        $scope.settings.columns[3] = $scope.dataSource;
      });
    });


    var getSetting = function() {
      $scope.settings = {
        colHeaders: ["Code", "Comments"],
        contextMenu: ["row_above", "row_below", "remove_row"],
        colWidths: [100, 100],
        columns: [{
          type: 'dropdown',
          source: ['Not Started', 'In Progress', 'Completed']
        }, {}, {}, {
          type: 'dropdown',
          source: $scope.dataSource,
        }]
      };
    }

Answer 3

Answer №2

Before diving into the code, it's important to understand that when you set $scope.settings = {...}, the $http request may still be in progress. Instead of writing

{
  type: 'dropdown',
  source: $scope.dataSource,
}

You can simply use

{
  type: 'dropdown',
  source: null,
}

Once the $http call is completed, you probably want to update the source property. But in your current implementation, you are replacing the entire $scope.settings.columns[3] object instead of just updating its source.

Here's a better approach:

$http.get("http://localhost/app/api/Suppliers").success(function(response) {
  $scope.dataSource = response;
  console.log($scope.dataSource);
  $scope.settings.columns[3].source = $scope.dataSource;
});

It's worth noting that I've removed the safeApply, which is considered an anti-pattern. The digest cycle will be triggered automatically by the $http call.

Answer 4

Before diving into the code, it's important to understand that when you set $scope.settings = {...}, the $http request may still be in progress. Instead of writing

{
  type: 'dropdown',
  source: $scope.dataSource,
}

You can simply use

{
  type: 'dropdown',
  source: null,
}

Once the $http call is completed, you probably want to update the source property. But in your current implementation, you are replacing the entire $scope.settings.columns[3] object instead of just updating its source.

Here's a better approach:

$http.get("http://localhost/app/api/Suppliers").success(function(response) {
  $scope.dataSource = response;
  console.log($scope.dataSource);
  $scope.settings.columns[3].source = $scope.dataSource;
});

It's worth noting that I've removed the safeApply, which is considered an anti-pattern. The digest cycle will be triggered automatically by the $http call.

Answer 5

Answer №3

Discovered the solution!

$scope.providers = [];

$http.get("http://localhost/i95/api/Providers").success(function(data, status, headers, config) {
    for(var x = 0; x < data.length; x++) {
        $scope.providers.push(data[x].firm);
    }
    console.log($scope.providers);
});

Therefore, implementing a global variable and utilizing the push method resolved the issue.

Answer 6

Discovered the solution!

$scope.providers = [];

$http.get("http://localhost/i95/api/Providers").success(function(data, status, headers, config) {
    for(var x = 0; x < data.length; x++) {
        $scope.providers.push(data[x].firm);
    }
    console.log($scope.providers);
});

Therefore, implementing a global variable and utilizing the push method resolved the issue.

Transferring information to a different scope

Answer №1

Answer №2

Answer №3

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