Sequelize Hooks- Previous data values for afterBulkUpdate












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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






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      asked Nov 12 at 4:18









      niaS

      367




      367
























          1 Answer
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          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





















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            1 Answer
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            active

            oldest

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            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






























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