Sequelize Hooks- Previous data values for afterBulkUpdate










0














I am trying to create a hook beforeBulkUpdate and get new and previous values of a field. I tried using .reload() on the model and _previousDataValues but they only work on instances and not bulk create and update (I'm using bulk update). Is there a way to get the previous value of field using the beforeBulkUpdate hook?



beforeBulkUpdate: (person) => 
console.log(person.name) // 'John' (new name)
Person.findOne( where: id: input.id ).then(person =>
person.reload().then(() =>
console.log(person.name) // 'John' (expected old name, but returns new name)
)
)










share|improve this question


























    0














    I am trying to create a hook beforeBulkUpdate and get new and previous values of a field. I tried using .reload() on the model and _previousDataValues but they only work on instances and not bulk create and update (I'm using bulk update). Is there a way to get the previous value of field using the beforeBulkUpdate hook?



    beforeBulkUpdate: (person) => 
    console.log(person.name) // 'John' (new name)
    Person.findOne( where: id: input.id ).then(person =>
    person.reload().then(() =>
    console.log(person.name) // 'John' (expected old name, but returns new name)
    )
    )










    share|improve this question
























      0












      0








      0







      I am trying to create a hook beforeBulkUpdate and get new and previous values of a field. I tried using .reload() on the model and _previousDataValues but they only work on instances and not bulk create and update (I'm using bulk update). Is there a way to get the previous value of field using the beforeBulkUpdate hook?



      beforeBulkUpdate: (person) => 
      console.log(person.name) // 'John' (new name)
      Person.findOne( where: id: input.id ).then(person =>
      person.reload().then(() =>
      console.log(person.name) // 'John' (expected old name, but returns new name)
      )
      )










      share|improve this question













      I am trying to create a hook beforeBulkUpdate and get new and previous values of a field. I tried using .reload() on the model and _previousDataValues but they only work on instances and not bulk create and update (I'm using bulk update). Is there a way to get the previous value of field using the beforeBulkUpdate hook?



      beforeBulkUpdate: (person) => 
      console.log(person.name) // 'John' (new name)
      Person.findOne( where: id: input.id ).then(person =>
      person.reload().then(() =>
      console.log(person.name) // 'John' (expected old name, but returns new name)
      )
      )







      sequelize.js






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 12 at 4:18









      niaS

      367




      367






















          1 Answer
          1






          active

          oldest

          votes


















          0














          Solved it by passing individualHooks:true to the call.



          Model.update(id: input.id, individualHooks: true);


          And:



          hooks: 
          beforeUpdate: (instance, options) =>
          console.log(instance.dataValues); // new values
          console.log(instance._previousDataValues); // current values







          share|improve this answer




















            Your Answer






            StackExchange.ifUsing("editor", function ()
            StackExchange.using("externalEditor", function ()
            StackExchange.using("snippets", function ()
            StackExchange.snippets.init();
            );
            );
            , "code-snippets");

            StackExchange.ready(function()
            var channelOptions =
            tags: "".split(" "),
            id: "1"
            ;
            initTagRenderer("".split(" "), "".split(" "), channelOptions);

            StackExchange.using("externalEditor", function()
            // Have to fire editor after snippets, if snippets enabled
            if (StackExchange.settings.snippets.snippetsEnabled)
            StackExchange.using("snippets", function()
            createEditor();
            );

            else
            createEditor();

            );

            function createEditor()
            StackExchange.prepareEditor(
            heartbeatType: 'answer',
            autoActivateHeartbeat: false,
            convertImagesToLinks: true,
            noModals: true,
            showLowRepImageUploadWarning: true,
            reputationToPostImages: 10,
            bindNavPrevention: true,
            postfix: "",
            imageUploader:
            brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
            contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
            allowUrls: true
            ,
            onDemand: true,
            discardSelector: ".discard-answer"
            ,immediatelyShowMarkdownHelp:true
            );



            );













            draft saved

            draft discarded


















            StackExchange.ready(
            function ()
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53255911%2fsequelize-hooks-previous-data-values-for-afterbulkupdate%23new-answer', 'question_page');

            );

            Post as a guest















            Required, but never shown

























            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            0














            Solved it by passing individualHooks:true to the call.



            Model.update(id: input.id, individualHooks: true);


            And:



            hooks: 
            beforeUpdate: (instance, options) =>
            console.log(instance.dataValues); // new values
            console.log(instance._previousDataValues); // current values







            share|improve this answer

























              0














              Solved it by passing individualHooks:true to the call.



              Model.update(id: input.id, individualHooks: true);


              And:



              hooks: 
              beforeUpdate: (instance, options) =>
              console.log(instance.dataValues); // new values
              console.log(instance._previousDataValues); // current values







              share|improve this answer























                0












                0








                0






                Solved it by passing individualHooks:true to the call.



                Model.update(id: input.id, individualHooks: true);


                And:



                hooks: 
                beforeUpdate: (instance, options) =>
                console.log(instance.dataValues); // new values
                console.log(instance._previousDataValues); // current values







                share|improve this answer












                Solved it by passing individualHooks:true to the call.



                Model.update(id: input.id, individualHooks: true);


                And:



                hooks: 
                beforeUpdate: (instance, options) =>
                console.log(instance.dataValues); // new values
                console.log(instance._previousDataValues); // current values








                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 12 at 4:44









                niaS

                367




                367



























                    draft saved

                    draft discarded
















































                    Thanks for contributing an answer to Stack Overflow!


                    • Please be sure to answer the question. Provide details and share your research!

                    But avoid


                    • Asking for help, clarification, or responding to other answers.

                    • Making statements based on opinion; back them up with references or personal experience.

                    To learn more, see our tips on writing great answers.





                    Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


                    Please pay close attention to the following guidance:


                    • Please be sure to answer the question. Provide details and share your research!

                    But avoid


                    • Asking for help, clarification, or responding to other answers.

                    • Making statements based on opinion; back them up with references or personal experience.

                    To learn more, see our tips on writing great answers.




                    draft saved


                    draft discarded














                    StackExchange.ready(
                    function ()
                    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53255911%2fsequelize-hooks-previous-data-values-for-afterbulkupdate%23new-answer', 'question_page');

                    );

                    Post as a guest















                    Required, but never shown





















































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown

































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown







                    這個網誌中的熱門文章

                    Barbados

                    How to read a connectionString WITH PROVIDER in .NET Core?

                    Node.js Script on GitHub Pages or Amazon S3