Automatically Change Model Value If Another Value Updates












0















With Laravel & Eloquent, if a column called status changes its value to "complete," for example, is it possible to automatically change the value of another column (issue_id) to NULL?



I was wondering about the set attribute or intercepting the save() method, but not sure which is best.










share|improve this question





























    0















    With Laravel & Eloquent, if a column called status changes its value to "complete," for example, is it possible to automatically change the value of another column (issue_id) to NULL?



    I was wondering about the set attribute or intercepting the save() method, but not sure which is best.










    share|improve this question



























      0












      0








      0








      With Laravel & Eloquent, if a column called status changes its value to "complete," for example, is it possible to automatically change the value of another column (issue_id) to NULL?



      I was wondering about the set attribute or intercepting the save() method, but not sure which is best.










      share|improve this question
















      With Laravel & Eloquent, if a column called status changes its value to "complete," for example, is it possible to automatically change the value of another column (issue_id) to NULL?



      I was wondering about the set attribute or intercepting the save() method, but not sure which is best.







      php laravel eloquent






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Jan 1 at 22:16









      Karl Hill

      3,10622243




      3,10622243










      asked Jan 1 at 16:40









      jdawgjdawg

      1721214




      1721214
























          1 Answer
          1






          active

          oldest

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          0














          You could make use of Observers.



          For example, to observe the Issue model, you could generate an Observer as such:



          php artisan make:observer IssueObserver --model=Issue


          This will produce an observer where you could listen to many model events.



          <?php

          namespace AppObservers;

          use AppIssue;

          class IssueObserver
          {

          /**
          * Handle the Issue "updating" event.
          *
          * @param AppIssue $Issue
          * @return void
          */
          public function updating(Issue $issue)
          {
          if($issue->status == 'complete') {
          $issue->issue_id = null;
          }
          }
          }


          To register the Observer, you would need to add this to AppServiceProvider@boot()



          <?php

          namespace AppProviders;

          use AppIssue;
          use AppObserversIssueObserver;
          use IlluminateSupportServiceProvider;

          class AppServiceProvider extends ServiceProvider
          {
          /**
          * Bootstrap any application services.
          *
          * @return void
          */
          public function boot()
          {
          Issue::observe(IssueObserver::class);
          }

          /**
          * Register the service provider.
          *
          * @return void
          */
          public function register()
          {
          //
          }
          }


          You could also just do this in your App/Issue model.



          public static function boot()
          {
          parent::boot();

          static::updating(function ($issue) {
          if($issue->status == 'complete') {
          $issue->issue_id = null;
          }
          })
          }


          Obviously, you would need to listen on the events that suit your needs. This is just an example. You could take a look at all the available model events here.






          share|improve this answer


























          • calling save in updated does this not call infinitly updated ?

            – Aurel
            Jan 1 at 16:55











          • @Aurel Nice catch. Edited, thanks :)

            – Mozammil
            Jan 1 at 16:58











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          1 Answer
          1






          active

          oldest

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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          0














          You could make use of Observers.



          For example, to observe the Issue model, you could generate an Observer as such:



          php artisan make:observer IssueObserver --model=Issue


          This will produce an observer where you could listen to many model events.



          <?php

          namespace AppObservers;

          use AppIssue;

          class IssueObserver
          {

          /**
          * Handle the Issue "updating" event.
          *
          * @param AppIssue $Issue
          * @return void
          */
          public function updating(Issue $issue)
          {
          if($issue->status == 'complete') {
          $issue->issue_id = null;
          }
          }
          }


          To register the Observer, you would need to add this to AppServiceProvider@boot()



          <?php

          namespace AppProviders;

          use AppIssue;
          use AppObserversIssueObserver;
          use IlluminateSupportServiceProvider;

          class AppServiceProvider extends ServiceProvider
          {
          /**
          * Bootstrap any application services.
          *
          * @return void
          */
          public function boot()
          {
          Issue::observe(IssueObserver::class);
          }

          /**
          * Register the service provider.
          *
          * @return void
          */
          public function register()
          {
          //
          }
          }


          You could also just do this in your App/Issue model.



          public static function boot()
          {
          parent::boot();

          static::updating(function ($issue) {
          if($issue->status == 'complete') {
          $issue->issue_id = null;
          }
          })
          }


          Obviously, you would need to listen on the events that suit your needs. This is just an example. You could take a look at all the available model events here.






          share|improve this answer


























          • calling save in updated does this not call infinitly updated ?

            – Aurel
            Jan 1 at 16:55











          • @Aurel Nice catch. Edited, thanks :)

            – Mozammil
            Jan 1 at 16:58
















          0














          You could make use of Observers.



          For example, to observe the Issue model, you could generate an Observer as such:



          php artisan make:observer IssueObserver --model=Issue


          This will produce an observer where you could listen to many model events.



          <?php

          namespace AppObservers;

          use AppIssue;

          class IssueObserver
          {

          /**
          * Handle the Issue "updating" event.
          *
          * @param AppIssue $Issue
          * @return void
          */
          public function updating(Issue $issue)
          {
          if($issue->status == 'complete') {
          $issue->issue_id = null;
          }
          }
          }


          To register the Observer, you would need to add this to AppServiceProvider@boot()



          <?php

          namespace AppProviders;

          use AppIssue;
          use AppObserversIssueObserver;
          use IlluminateSupportServiceProvider;

          class AppServiceProvider extends ServiceProvider
          {
          /**
          * Bootstrap any application services.
          *
          * @return void
          */
          public function boot()
          {
          Issue::observe(IssueObserver::class);
          }

          /**
          * Register the service provider.
          *
          * @return void
          */
          public function register()
          {
          //
          }
          }


          You could also just do this in your App/Issue model.



          public static function boot()
          {
          parent::boot();

          static::updating(function ($issue) {
          if($issue->status == 'complete') {
          $issue->issue_id = null;
          }
          })
          }


          Obviously, you would need to listen on the events that suit your needs. This is just an example. You could take a look at all the available model events here.






          share|improve this answer


























          • calling save in updated does this not call infinitly updated ?

            – Aurel
            Jan 1 at 16:55











          • @Aurel Nice catch. Edited, thanks :)

            – Mozammil
            Jan 1 at 16:58














          0












          0








          0







          You could make use of Observers.



          For example, to observe the Issue model, you could generate an Observer as such:



          php artisan make:observer IssueObserver --model=Issue


          This will produce an observer where you could listen to many model events.



          <?php

          namespace AppObservers;

          use AppIssue;

          class IssueObserver
          {

          /**
          * Handle the Issue "updating" event.
          *
          * @param AppIssue $Issue
          * @return void
          */
          public function updating(Issue $issue)
          {
          if($issue->status == 'complete') {
          $issue->issue_id = null;
          }
          }
          }


          To register the Observer, you would need to add this to AppServiceProvider@boot()



          <?php

          namespace AppProviders;

          use AppIssue;
          use AppObserversIssueObserver;
          use IlluminateSupportServiceProvider;

          class AppServiceProvider extends ServiceProvider
          {
          /**
          * Bootstrap any application services.
          *
          * @return void
          */
          public function boot()
          {
          Issue::observe(IssueObserver::class);
          }

          /**
          * Register the service provider.
          *
          * @return void
          */
          public function register()
          {
          //
          }
          }


          You could also just do this in your App/Issue model.



          public static function boot()
          {
          parent::boot();

          static::updating(function ($issue) {
          if($issue->status == 'complete') {
          $issue->issue_id = null;
          }
          })
          }


          Obviously, you would need to listen on the events that suit your needs. This is just an example. You could take a look at all the available model events here.






          share|improve this answer















          You could make use of Observers.



          For example, to observe the Issue model, you could generate an Observer as such:



          php artisan make:observer IssueObserver --model=Issue


          This will produce an observer where you could listen to many model events.



          <?php

          namespace AppObservers;

          use AppIssue;

          class IssueObserver
          {

          /**
          * Handle the Issue "updating" event.
          *
          * @param AppIssue $Issue
          * @return void
          */
          public function updating(Issue $issue)
          {
          if($issue->status == 'complete') {
          $issue->issue_id = null;
          }
          }
          }


          To register the Observer, you would need to add this to AppServiceProvider@boot()



          <?php

          namespace AppProviders;

          use AppIssue;
          use AppObserversIssueObserver;
          use IlluminateSupportServiceProvider;

          class AppServiceProvider extends ServiceProvider
          {
          /**
          * Bootstrap any application services.
          *
          * @return void
          */
          public function boot()
          {
          Issue::observe(IssueObserver::class);
          }

          /**
          * Register the service provider.
          *
          * @return void
          */
          public function register()
          {
          //
          }
          }


          You could also just do this in your App/Issue model.



          public static function boot()
          {
          parent::boot();

          static::updating(function ($issue) {
          if($issue->status == 'complete') {
          $issue->issue_id = null;
          }
          })
          }


          Obviously, you would need to listen on the events that suit your needs. This is just an example. You could take a look at all the available model events here.







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Jan 1 at 16:58

























          answered Jan 1 at 16:46









          MozammilMozammil

          6,230420




          6,230420













          • calling save in updated does this not call infinitly updated ?

            – Aurel
            Jan 1 at 16:55











          • @Aurel Nice catch. Edited, thanks :)

            – Mozammil
            Jan 1 at 16:58



















          • calling save in updated does this not call infinitly updated ?

            – Aurel
            Jan 1 at 16:55











          • @Aurel Nice catch. Edited, thanks :)

            – Mozammil
            Jan 1 at 16:58

















          calling save in updated does this not call infinitly updated ?

          – Aurel
          Jan 1 at 16:55





          calling save in updated does this not call infinitly updated ?

          – Aurel
          Jan 1 at 16:55













          @Aurel Nice catch. Edited, thanks :)

          – Mozammil
          Jan 1 at 16:58





          @Aurel Nice catch. Edited, thanks :)

          – Mozammil
          Jan 1 at 16:58




















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