how to define primary key , forien key in loopback











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I am creating an API through loopback and using visual database design tool MySQLworkbench.



While I'm creating models in loopback I confused to define keys(primary, foreign and candidate). When I go through loopback documentation it's said to use idInjection. But, I confused how to use it.



Please, anyone, give me guidance to solve this issue










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    up vote
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    down vote

    favorite












    I am creating an API through loopback and using visual database design tool MySQLworkbench.



    While I'm creating models in loopback I confused to define keys(primary, foreign and candidate). When I go through loopback documentation it's said to use idInjection. But, I confused how to use it.



    Please, anyone, give me guidance to solve this issue










    share|improve this question


























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I am creating an API through loopback and using visual database design tool MySQLworkbench.



      While I'm creating models in loopback I confused to define keys(primary, foreign and candidate). When I go through loopback documentation it's said to use idInjection. But, I confused how to use it.



      Please, anyone, give me guidance to solve this issue










      share|improve this question















      I am creating an API through loopback and using visual database design tool MySQLworkbench.



      While I'm creating models in loopback I confused to define keys(primary, foreign and candidate). When I go through loopback documentation it's said to use idInjection. But, I confused how to use it.



      Please, anyone, give me guidance to solve this issue







      mysql loopback






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      edited Nov 20 at 4:57









      Sniffer

      6341722




      6341722










      asked Nov 20 at 4:54









      Arebhy Sri

      33413




      33413
























          1 Answer
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          up vote
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          down vote



          accepted










          I'm afraid Loopback accept only "id" as primary key and it's mandatory to build loopback model relations.



          The foreign key constraints or indexes setup in your database are not handeled by Loopback.



          This job would belong to loopback-connector but it's not a part of the specifications.



          The main advantages of working with loopback model relations is that you can have relations between different datasources. For example, when your create a "model A belongs to model B" relations, the datasource of model A can be different than the one of model B ! (and each datasource can use a different connector).



          Sorry for my english...



          Hope it helps






          share|improve this answer





















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            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes








            up vote
            1
            down vote



            accepted










            I'm afraid Loopback accept only "id" as primary key and it's mandatory to build loopback model relations.



            The foreign key constraints or indexes setup in your database are not handeled by Loopback.



            This job would belong to loopback-connector but it's not a part of the specifications.



            The main advantages of working with loopback model relations is that you can have relations between different datasources. For example, when your create a "model A belongs to model B" relations, the datasource of model A can be different than the one of model B ! (and each datasource can use a different connector).



            Sorry for my english...



            Hope it helps






            share|improve this answer

























              up vote
              1
              down vote



              accepted










              I'm afraid Loopback accept only "id" as primary key and it's mandatory to build loopback model relations.



              The foreign key constraints or indexes setup in your database are not handeled by Loopback.



              This job would belong to loopback-connector but it's not a part of the specifications.



              The main advantages of working with loopback model relations is that you can have relations between different datasources. For example, when your create a "model A belongs to model B" relations, the datasource of model A can be different than the one of model B ! (and each datasource can use a different connector).



              Sorry for my english...



              Hope it helps






              share|improve this answer























                up vote
                1
                down vote



                accepted







                up vote
                1
                down vote



                accepted






                I'm afraid Loopback accept only "id" as primary key and it's mandatory to build loopback model relations.



                The foreign key constraints or indexes setup in your database are not handeled by Loopback.



                This job would belong to loopback-connector but it's not a part of the specifications.



                The main advantages of working with loopback model relations is that you can have relations between different datasources. For example, when your create a "model A belongs to model B" relations, the datasource of model A can be different than the one of model B ! (and each datasource can use a different connector).



                Sorry for my english...



                Hope it helps






                share|improve this answer












                I'm afraid Loopback accept only "id" as primary key and it's mandatory to build loopback model relations.



                The foreign key constraints or indexes setup in your database are not handeled by Loopback.



                This job would belong to loopback-connector but it's not a part of the specifications.



                The main advantages of working with loopback model relations is that you can have relations between different datasources. For example, when your create a "model A belongs to model B" relations, the datasource of model A can be different than the one of model B ! (and each datasource can use a different connector).



                Sorry for my english...



                Hope it helps







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 22 at 16:51









                dun32

                5714




                5714






























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