What would be the right way to present business objects in the front end?












0














There is a backend that returns list of persons.
It gets automatically mapped into collection of TypeScript busness object class (Person) objects using Angular/rxjs.



export class Person {
Id: string;
Name: string;
Age: number;
}


There is a need to display these entities in a list with an additional column, stating whether records are selected or not - required for further processing.



The question is - what would be the right way to do this?



Should I create a PersonModel class that inherits from Person and add additional field in there?



export class PersonModel extends Person {
Selected: boolean;
}


Or, should I ignore the fact that back-end has nothing to do with the Selected property and simply add the property to the Person class?



export class Person {
Id: string;
Name: string;
Age: number;
Selected: boolean;
}


Are there other, more proper ways of dealing with such situation?










share|improve this question


















  • 1




    Composition, perhaps, an object like { person: Person, selected: boolean }.
    – jonrsharpe
    Nov 22 at 17:26






  • 1




    Create a PersonRow class/interface with a field person of type Person and a field selected of type boolean?
    – JB Nizet
    Nov 22 at 17:26


















0














There is a backend that returns list of persons.
It gets automatically mapped into collection of TypeScript busness object class (Person) objects using Angular/rxjs.



export class Person {
Id: string;
Name: string;
Age: number;
}


There is a need to display these entities in a list with an additional column, stating whether records are selected or not - required for further processing.



The question is - what would be the right way to do this?



Should I create a PersonModel class that inherits from Person and add additional field in there?



export class PersonModel extends Person {
Selected: boolean;
}


Or, should I ignore the fact that back-end has nothing to do with the Selected property and simply add the property to the Person class?



export class Person {
Id: string;
Name: string;
Age: number;
Selected: boolean;
}


Are there other, more proper ways of dealing with such situation?










share|improve this question


















  • 1




    Composition, perhaps, an object like { person: Person, selected: boolean }.
    – jonrsharpe
    Nov 22 at 17:26






  • 1




    Create a PersonRow class/interface with a field person of type Person and a field selected of type boolean?
    – JB Nizet
    Nov 22 at 17:26
















0












0








0







There is a backend that returns list of persons.
It gets automatically mapped into collection of TypeScript busness object class (Person) objects using Angular/rxjs.



export class Person {
Id: string;
Name: string;
Age: number;
}


There is a need to display these entities in a list with an additional column, stating whether records are selected or not - required for further processing.



The question is - what would be the right way to do this?



Should I create a PersonModel class that inherits from Person and add additional field in there?



export class PersonModel extends Person {
Selected: boolean;
}


Or, should I ignore the fact that back-end has nothing to do with the Selected property and simply add the property to the Person class?



export class Person {
Id: string;
Name: string;
Age: number;
Selected: boolean;
}


Are there other, more proper ways of dealing with such situation?










share|improve this question













There is a backend that returns list of persons.
It gets automatically mapped into collection of TypeScript busness object class (Person) objects using Angular/rxjs.



export class Person {
Id: string;
Name: string;
Age: number;
}


There is a need to display these entities in a list with an additional column, stating whether records are selected or not - required for further processing.



The question is - what would be the right way to do this?



Should I create a PersonModel class that inherits from Person and add additional field in there?



export class PersonModel extends Person {
Selected: boolean;
}


Or, should I ignore the fact that back-end has nothing to do with the Selected property and simply add the property to the Person class?



export class Person {
Id: string;
Name: string;
Age: number;
Selected: boolean;
}


Are there other, more proper ways of dealing with such situation?







angular typescript architecture rxjs angular6






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asked Nov 22 at 17:21









Patryk

1,11482864




1,11482864








  • 1




    Composition, perhaps, an object like { person: Person, selected: boolean }.
    – jonrsharpe
    Nov 22 at 17:26






  • 1




    Create a PersonRow class/interface with a field person of type Person and a field selected of type boolean?
    – JB Nizet
    Nov 22 at 17:26
















  • 1




    Composition, perhaps, an object like { person: Person, selected: boolean }.
    – jonrsharpe
    Nov 22 at 17:26






  • 1




    Create a PersonRow class/interface with a field person of type Person and a field selected of type boolean?
    – JB Nizet
    Nov 22 at 17:26










1




1




Composition, perhaps, an object like { person: Person, selected: boolean }.
– jonrsharpe
Nov 22 at 17:26




Composition, perhaps, an object like { person: Person, selected: boolean }.
– jonrsharpe
Nov 22 at 17:26




1




1




Create a PersonRow class/interface with a field person of type Person and a field selected of type boolean?
– JB Nizet
Nov 22 at 17:26






Create a PersonRow class/interface with a field person of type Person and a field selected of type boolean?
– JB Nizet
Nov 22 at 17:26














1 Answer
1






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oldest

votes


















0














Instead of Class, You can create an interface which extends another interface.



export interface Person {
Id: string;
Name: string;
Age: number;
}

export interface PersonAttrib extends Person {
Selected: boolean;
}





share|improve this answer





















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    active

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    0














    Instead of Class, You can create an interface which extends another interface.



    export interface Person {
    Id: string;
    Name: string;
    Age: number;
    }

    export interface PersonAttrib extends Person {
    Selected: boolean;
    }





    share|improve this answer


























      0














      Instead of Class, You can create an interface which extends another interface.



      export interface Person {
      Id: string;
      Name: string;
      Age: number;
      }

      export interface PersonAttrib extends Person {
      Selected: boolean;
      }





      share|improve this answer
























        0












        0








        0






        Instead of Class, You can create an interface which extends another interface.



        export interface Person {
        Id: string;
        Name: string;
        Age: number;
        }

        export interface PersonAttrib extends Person {
        Selected: boolean;
        }





        share|improve this answer












        Instead of Class, You can create an interface which extends another interface.



        export interface Person {
        Id: string;
        Name: string;
        Age: number;
        }

        export interface PersonAttrib extends Person {
        Selected: boolean;
        }






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 22 at 17:37









        Suresh Kumar Ariya

        4,4131215




        4,4131215






























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