The 'myCtrl' parameter is invalid as it is not recognized as a function and is currently set to undefined

Question

The 'myCtrl' parameter is invalid as it is not recognized as a function and is currently set to undefined

I'm having trouble resolving this issue. I've implemented other controllers in the same manner that are working fine, but this specific one is throwing an error

Error: ng:areq Bad Argument"  "Argument 'myCtrl' is not a function, got undefined

. Below is my code:

//js
var myApp = angular.module('myApp', ['ngMaterial','angularUtils.directives.dirPagination']);

myApp.config(function($interpolateProvider) {
              $interpolateProvider.startSymbol('<@');
              $interpolateProvider.endSymbol('@>');
        });

(function(){

     var myContacts = angular.module('myApp');

     myContacts.controller('myCtrl', function ($scope, $http) {


            $scope.totalContacts = 0;
            $scope.request_limit = 3;

            $scope.pagination = {
                current: 1
            };

            getContacts(1); 

            $scope.pageChanged = function(newPage) {

                getContacts(newPage);
            };


            $scope.getContacts = function(pageNumber){

                api_url = '/api/people/list?page=' + pageNumber;


                $http.get(api_url).success(function(data){


                    $scope.contacts = data.data;
                    $scope.totalContacts = data.count

                    console.log('Data: '+ $scope.contacts);

                    if(data.code == 9999) {

                        displayMessage('Error', data.msg);

                    } else if (data.code == 8888) {

                        displayMessage('Error', data.msg);

                    } else if (data.code == 1001) {

                        displayMessage('Info', data.msg);

                    } else if (data.code == 1000) { 

                        $scope.contacts = data.data;
                        hideMessage();
                    }
                });
            }   
        });
})();

// html
<html lang="en" ng-app="myApp">
<head>...
 <div data-ng-controller="myCtrl"  class="container-fluid" id="pcont">
  <table class="table no-border hover">
   <thead class="no-border">
    <tr>
     <th class="text-center"><strong>Position</strong></th>
     <th class="text-center"><strong>Organization</strong></th>
    </tr>
   </thead>
   <tbody class="no-border-y">
    <tr dir-paginate="contact in contacts | itemsPerPage: request_limit" total-items="totalContacts"  current-page="pagination.current">
     <td class="text-center"><@ contact.contact_position @></td>
     <td class="text-center"><@ contact.organization_name @></td>
    </tr>
   </tbody> 
  </table>

Can anyone spot what might be causing the error?

javascript angularjs

Answer 1

Answer №1

An issue may arise in your controller function due to the presence of this line, as the specified function is not defined:

getContacts(1);

This results in a failure to correctly define the controller, leading to the error generated by angular. Consider removing the aforementioned line and adding the following at the conclusion of your controller function instead:

$scope.getContacts(1);

Furthermore, it appears that a similar error exists within the $scope.pageChanged function. In order to rectify this, you should replace getContacts with $scope.getContacts.

Answer 2

An issue may arise in your controller function due to the presence of this line, as the specified function is not defined:

getContacts(1);

This results in a failure to correctly define the controller, leading to the error generated by angular. Consider removing the aforementioned line and adding the following at the conclusion of your controller function instead:

$scope.getContacts(1);

Furthermore, it appears that a similar error exists within the $scope.pageChanged function. In order to rectify this, you should replace getContacts with $scope.getContacts.

Answer 3

Answer №2

Can you explain why the controller is wrapped in a function()? Maybe this alternative approach will help:

//js
var myApp = angular.module('myApp', ['ngMaterial','angularUtils.directives.dirPagination']);

myApp.config(function($interpolateProvider) {
              $interpolateProvider.startSymbol('{^');
              $interpolateProvider.endSymbol('^}');
        });

myApp.controller('myCtrl', function ($scope, $http) {


            $scope.totalItems = 0;
            $scope.limit = 3; // adjust based on API results per page

            $scope.pagination = {
                current: 1
            };

            getItems(1); 

            // Handle page change
            $scope.pageChanged = function(newPage) {

                getItems(newPage);
            };


            // Retrieve items 
            $scope.getItems = function(pageNumber){

                api_url = '/api/items/list?page=' + pageNumber;


                $http.get(api_url).success(function(data){


                    // Update scope data
                    $scope.items = data.data;
                    $scope.totalItems = data.count

                    console.log('Data: '+ $scope.items);

                    // Prepare message output
                    if(data.code == 9999) {

                        // Display error
                        showMessage('Error', data.msg);

                    } else if (data.code == 8888) {

                        // Show error
                        displayMessage('Error', data.msg);

                    } else if (data.code == 1001) {

                        // No data
                        // Display info
                        displayMessage('Info', data.msg);

                    } else if (data.code == 1000) { 

                        // OK, update scope
                        $scope.items = data.data;
                        hideMessage();
                    }
                });
            }   
        });

// html
<html lang="en" ng-app="myApp">
<head>...
 <div data-ng-controller="myCtrl"  class="container-fluid" id="pcont">
  <table class="table no-border hover">
   <thead class="no-border">
    <tr>
     <th class="text-center"><strong>Position</strong></th>
     <th class="text-center"><strong>Organization</strong></th>
    </tr>
   </thead>
   <tbody class="no-border-y">
    <tr dir-paginate="item in items | itemsPerPage: limit" total-items="totalItems"  current-page="pagination.current">
     <td class="text-center">{^ item.item_position ^}</td>
     <td class="text-center">{^ item.organization_name ^}</td>
    </tr>
   </tbody> 
  </table>

Answer 4

Can you explain why the controller is wrapped in a function()? Maybe this alternative approach will help:

//js
var myApp = angular.module('myApp', ['ngMaterial','angularUtils.directives.dirPagination']);

myApp.config(function($interpolateProvider) {
              $interpolateProvider.startSymbol('{^');
              $interpolateProvider.endSymbol('^}');
        });

myApp.controller('myCtrl', function ($scope, $http) {


            $scope.totalItems = 0;
            $scope.limit = 3; // adjust based on API results per page

            $scope.pagination = {
                current: 1
            };

            getItems(1); 

            // Handle page change
            $scope.pageChanged = function(newPage) {

                getItems(newPage);
            };


            // Retrieve items 
            $scope.getItems = function(pageNumber){

                api_url = '/api/items/list?page=' + pageNumber;


                $http.get(api_url).success(function(data){


                    // Update scope data
                    $scope.items = data.data;
                    $scope.totalItems = data.count

                    console.log('Data: '+ $scope.items);

                    // Prepare message output
                    if(data.code == 9999) {

                        // Display error
                        showMessage('Error', data.msg);

                    } else if (data.code == 8888) {

                        // Show error
                        displayMessage('Error', data.msg);

                    } else if (data.code == 1001) {

                        // No data
                        // Display info
                        displayMessage('Info', data.msg);

                    } else if (data.code == 1000) { 

                        // OK, update scope
                        $scope.items = data.data;
                        hideMessage();
                    }
                });
            }   
        });

// html
<html lang="en" ng-app="myApp">
<head>...
 <div data-ng-controller="myCtrl"  class="container-fluid" id="pcont">
  <table class="table no-border hover">
   <thead class="no-border">
    <tr>
     <th class="text-center"><strong>Position</strong></th>
     <th class="text-center"><strong>Organization</strong></th>
    </tr>
   </thead>
   <tbody class="no-border-y">
    <tr dir-paginate="item in items | itemsPerPage: limit" total-items="totalItems"  current-page="pagination.current">
     <td class="text-center">{^ item.item_position ^}</td>
     <td class="text-center">{^ item.organization_name ^}</td>
    </tr>
   </tbody> 
  </table>

Answer 5

Answer №3

I've reviewed your code and I'm having trouble identifying any errors due to its complex structure. However, I'll make an attempt to run it and see how it performs.

(function () {
    var myApp = angular.module('myApp', ['ngMaterial', 'angularUtils.directives.dirPagination']);

    myApp.config(function ($interpolateProvider) {
        $interpolateProvider.startSymbol('<@');
        $interpolateProvider.endSymbol('@>');
    });

    var myContacts = angular.module('myApp');

    myContacts.controller('myCtrl', function ($scope, $http) {

        $scope.totalContacts = 0;
        $scope.request_limit = 3;

        $scope.pagination = {
            current: 1
        };

        $scope.getContacts(1);

        // Handling page change
        $scope.pageChanged = function (newPage) {
            $scope.getContacts(newPage);
        };

        // Retrieving contacts
        $scope.getContacts = function (pageNumber) {

            api_url = '/api/people/list?page=' + pageNumber;

            $http.get(api_url).success(function (data) {
                $scope.contacts = data.data;
                $scope.totalContacts = data.count

                console.log('Data: ' + $scope.contacts);

                if (data.code == 9999) {
                    displayMessage('Error', data.msg);
                } else if (data.code == 8888) {
                    displayMessage('Error', data.msg);
                } else if (data.code == 1001) {
                    displayMessage('Info', data.msg);
                } else if (data.code == 1000) {
                    $scope.contacts = data.data;
                    hideMessage();
                }
            });
        }
    });
})();

Answer 6

I've reviewed your code and I'm having trouble identifying any errors due to its complex structure. However, I'll make an attempt to run it and see how it performs.

(function () {
    var myApp = angular.module('myApp', ['ngMaterial', 'angularUtils.directives.dirPagination']);

    myApp.config(function ($interpolateProvider) {
        $interpolateProvider.startSymbol('<@');
        $interpolateProvider.endSymbol('@>');
    });

    var myContacts = angular.module('myApp');

    myContacts.controller('myCtrl', function ($scope, $http) {

        $scope.totalContacts = 0;
        $scope.request_limit = 3;

        $scope.pagination = {
            current: 1
        };

        $scope.getContacts(1);

        // Handling page change
        $scope.pageChanged = function (newPage) {
            $scope.getContacts(newPage);
        };

        // Retrieving contacts
        $scope.getContacts = function (pageNumber) {

            api_url = '/api/people/list?page=' + pageNumber;

            $http.get(api_url).success(function (data) {
                $scope.contacts = data.data;
                $scope.totalContacts = data.count

                console.log('Data: ' + $scope.contacts);

                if (data.code == 9999) {
                    displayMessage('Error', data.msg);
                } else if (data.code == 8888) {
                    displayMessage('Error', data.msg);
                } else if (data.code == 1001) {
                    displayMessage('Info', data.msg);
                } else if (data.code == 1000) {
                    $scope.contacts = data.data;
                    hideMessage();
                }
            });
        }
    });
})();

Answer 7

Answer №4

Your explanation of the controller seems a bit unconventional. It's peculiar because your controller isn't integrated with your application from the start.

Here are two ways to implement a controller:

Method:1

var myApp = angular.module('myApp', ['ngMaterial','angularUtils.directives.dirPagination']);

myApp.config(function($interpolateProvider) {
$interpolateProvider.startSymbol('<@');
$interpolateProvider.endSymbol('@>');

});
myApp.controller('myCtrl', function ($scope, $http) {
// .. Remaining code for the controller

Refer to this guide for more information: Angular controller guide

Method: 2.

var myApp = angular.module('myApp',['ngMaterial','angularUtils.directives.dirPagination'])
.controller('myCtrl', myCtrl)

function myCtrl($location, common , config) {

}

Please follow John Papa's Angular conventions mentioned here John Papa Convention

Answer 8

Your explanation of the controller seems a bit unconventional. It's peculiar because your controller isn't integrated with your application from the start.

Here are two ways to implement a controller:

Method:1

var myApp = angular.module('myApp', ['ngMaterial','angularUtils.directives.dirPagination']);

myApp.config(function($interpolateProvider) {
$interpolateProvider.startSymbol('<@');
$interpolateProvider.endSymbol('@>');

});
myApp.controller('myCtrl', function ($scope, $http) {
// .. Remaining code for the controller

Refer to this guide for more information: Angular controller guide

Method: 2.

var myApp = angular.module('myApp',['ngMaterial','angularUtils.directives.dirPagination'])
.controller('myCtrl', myCtrl)

function myCtrl($location, common , config) {

}

Please follow John Papa's Angular conventions mentioned here John Papa Convention

The 'myCtrl' parameter is invalid as it is not recognized as a function and is currently set to undefined

Answer №1

Answer №2

Answer №3

Answer №4

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