Error when getting edge of releationship.

[piyushpatil027]

hi Abed Halawi,

Hope you are doing great.I am using your Neo4j eloquent in Laravel.When i getting edge of releationship then it is giving below error.Can you help me how it should remove this error.

exception 'ErrorException' with message 'Argument 3 passed to Vinelab\NeoEloquent\Eloquent\Edges\Relation::construct() must be an instance of Vinelab\NeoEloquent\Eloquent\Model, null given, called in /usr/share/nginx/html/cardiomeet/vendor/sgpatil/neoeloquent/src/Vinelab/NeoEloquent/Eloquent/Relations/HasOne.php on line 124 and defined' in /usr/share/nginx/html/cardiomeet/vendor/sgpatil/neoeloquent/src/Vinelab/NeoEloquent/Eloquent/Edges/Relation.php:128 Stack trace: #0 /usr/share/nginx/html/cardiomeet/vendor/sgpatil/neoeloquent/src/Vinelab/NeoEloquent/Eloquent/Edges/Relation.php(128): Illuminate\Exception\Handler->handleError(4096, 'Argument 3 pass...', '/usr/share/ngin...', 128, Array) #1 /usr/share/nginx/html/cardiomeet/vendor/sgpatil/neoeloquent/src/Vinelab/NeoEloquent/Eloquent/Relations/HasOne.php(124): Vinelab\NeoEloquent\Eloquent\Edges\Relation->construct(Object(Vinelab\NeoEloquent\Eloquent\Builder), Object(User), NULL, 'HAS_PUSHNOTIFIC...', Array, true) #2 /usr/share/nginx/html/cardiomeet/vendor/sgpatil/neoeloquent/src/Vinelab/NeoEloquent/Eloquent/Relations/HasOne.php(136): Vinelab\NeoEloquent\Eloquent\Relations\HasOne->getEdge(NULL) #3 /usr/share/nginx/html/cardiomeet/app/models/PushNotification/PushNotification.php(55): Vinelab\NeoEloquent\Eloquent\Relations\HasOne->edge() #4 /usr/share/nginx/html/cardiomeet/app/models/PushNotification/PushNotification.php(73): PushNotification\PushNotification->getPushNotificationsNode('257809') #5 /usr/share/nginx/html/cardiomeet/app/Repository/PushNotification/PushNotificationRepositary.php(39): PushNotification\PushNotification->saveImeiAndAndroidAPIKey('257809') #6 /usr/share/nginx/html/cardiomeet/app/controllers/RestController/RestPushNotificationController.php(57): Repository\PushNotification\PushNotificationRepositary->saveImeiAndAndroidAPIKeyAllUserInRepo(Array) #7 /usr/share/nginx/html/cardiomeet/app/controllers/RestController/RestPushNotificationController.php(74): RestPushNotificationController->setPushNotificationAPIKey() #8 /usr/share/nginx/html/cardiomeet/app/controllers/RestController/RestPushNotificationController.php(46): RestPushNotificationController->setFunctionName() #9 /usr/share/nginx/html/cardiomeet/app/controllers/RestController/RestPushNotificationController.php(37): RestPushNotificationController->getJsonArray() #10 [internal function]: RestPushNotificationController->pushnotification('257809') #11 /usr/share/nginx/html/cardiomeet/vendor/laravel/framework/src/Illuminate/Routing/Controller.php(231): call_user_func_array(Array, Array) #12 /usr/share/nginx/html/cardiomeet/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(93): Illuminate\Routing\Controller->callAction('pushnotificatio...', Array) #13 /usr/share/nginx/html/cardiomeet/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(62): Illuminate\Routing\ControllerDispatcher->call(Object(RestPushNotificationController), Object(Illuminate\Routing\Route), 'pushnotificatio...') #14 /usr/share/nginx/html/cardiomeet/vendor/laravel/framework/src/Illuminate/Routing/Router.php(967): Illuminate\Routing\ControllerDispatcher->dispatch(Object(Illuminate\Routing\Route), Object(Illuminate\Http\Request), 'RestPushNotific...', 'pushnotificatio...') #15 [internal function]: Illuminate\Routing\Router->Illuminate\Routing{closure}('257809') #16 /usr/share/nginx/html/cardiomeet/vendor/laravel/framework/src/Illuminate/Routing/Route.php(109): call_user_func_array(Object(Closure), Array) #17 /usr/share/nginx/html/cardiomeet/vendor/laravel/framework/src/Illuminate/Routing/Router.php(1033): Illuminate\Routing\Route->run(Object(Illuminate\Http\Request)) #18 /usr/share/nginx/html/cardiomeet/vendor/laravel/framework/src/Illuminate/Routing/Router.php(1001): Illuminate\Routing\Router->dispatchToRoute(Object(Illuminate\Http\Request)) #19 /usr/share/nginx/html/cardiomeet/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(775): Illuminate\Routing\Router->dispatch(Object(Illuminate\Http\Request)) #20 /usr/share/nginx/html/cardiomeet/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(745): Illuminate\Foundation\Application->dispatch(Object(Illuminate\Http\Request)) #21 /usr/share/nginx/html/cardiomeet/vendor/laravel/framework/src/Illuminate/Session/Middleware.php(72): Illuminate\Foundation\Application->handle(Object(Illuminate\Http\Request), 1, true) #22 /usr/share/nginx/html/cardiomeet/vendor/laravel/framework/src/Illuminate/Cookie/Queue.php(47): Illuminate\Session\Middleware->handle(Object(Illuminate\Http\Request), 1, true) #23 /usr/share/nginx/html/cardiomeet/vendor/laravel/framework/src/Illuminate/Cookie/Guard.php(51): Illuminate\Cookie\Queue->handle(Object(Illuminate\Http\Request), 1, true) #24 /usr/share/nginx/html/cardiomeet/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Illuminate\Cookie\Guard->handle(Object(Illuminate\Http\Request), 1, true) #25 /usr/share/nginx/html/cardiomeet/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(641): Stack\StackedHttpKernel->handle(Object(Illuminate\Http\Request)) #26 /usr/share/nginx/html/cardiomeet/public/index.php(49): Illuminate\Foundation\Application->run() #27 {main}

[aymanfarhat]

@piyushpatil027 Would be easier to figure out the problem if you share the chunk of code you're writing that is causing this error too. The exception alone is not enough. Also please format your code and output properly via markdown!.

[piyushpatil027]

hi aymanfarhat,

PushNotification.php

$user = User::find($uid); $push_notification = $user->push_notifcation()->edge(); => this line gives error

User File

public function push_notifcation() { return $this->hasOne('PushNotifications', 'HAS_PUSHNOTIFICATION'); }

[aymanfarhat]

@piyushpatil027 You have to supply an instance of a node as an argument to the edge function call. This is a relationship between 2 nodes, $user is one node on one end, you need to pass an instance to the push notification node into edge() for that to work.

Example: $user->push_notifcation()->edge($myPushNotification);

[piyushpatil027]

hi aymanfarhat,

Thanks for reply me. I used this ($user->push_notifcation()->edge($myPushNotification); ) but problem is still.

[piyushpatil027]

hi aymanfarhat,

Thanks for helped me. I got solution.Actually problem is not in coding.Problem was function name is not declared properly. This function name doesnot allow (push_notifcation()) .I have chnage function name to (pushnotifcation()) and code is running. Thanks.

[aymanfarhat]

Welcome! :)