JSON Schema - Uniqueness check on property in an array of objects

[johnRambo2k14]

Question
Is there a way to have a uniqueness check on a property in an array of objects within an array?

for example:

 model: [
    {
        description: 'Calendars',
        id: 'Calendar',  // <--- must be unique
        type: 'object'
    },
    {
        description: 'A date which can be assigned to a calendar.',
        id: 'Date',  // <--- must be unique
        type: 'object'
    }
]

[kenisteward]

https://json-schema.org/understanding-json-schema/reference/array.html#uniqueness That's not how uniqueness works in Jason schema so if using the conversion feature here it won't be how it works either

…

On Fri, Dec 20, 2019, 10:46 AM Rambo ***@***.***> wrote: *Question* Is there a way to have a uniqueness check on a property in an array of objects within an array? for example: model: [ { description: 'Calendars', id: 'Calendar', // <--- must be unique type: 'object' }, { description: 'A date which can be assigned to a calendar.', id: 'Date', // <--- must be unique type: 'object' } ] — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#1993?email_source=notifications&email_token=ADB4XNNZYVJRB2OOIY2BNB3QZTZFLA5CNFSM4J6AHOSKYY3PNVWWK3TUL52HS4DFUVEXG43VMWVGG33NNVSW45C7NFSM4ICAML7Q>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADB4XNO62LLHGFQIZP4URV3QZTZFLANCNFSM4J6AHOSA> .

[johnRambo2k14]

Ahh okay, can ngx-formly allow custom validation via Json schema?

Perhaps I need to do this in my custom array type component and access the model state. 🤔

[kenisteward]

Currently if you'd like to add it you can use the map function to further change a formly field based on configuration You can add a key to your base schema to represent it as there will be no errors in doing that.

…

On Fri, Dec 20, 2019, 1:12 PM Rambo ***@***.***> wrote: Ahh okay, can ngx-formly allow custom validation via Json schema? Perhaps I need to do this in my custom array type component and access the model state. 🤔 — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#1993?email_source=notifications&email_token=ADB4XNICGDSRKDYVNPHUG5DQZUKJJA5CNFSM4J6AHOSKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEHN35IY#issuecomment-568049315>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADB4XNM36YCYC5DML2LAR5TQZUKJJANCNFSM4J6AHOSA> .

[aitboudad]

as @kenisteward pointed either use a map option (#1982 (comment)) or widget where you can pass formlyConfig:

{
  "type": ...,
  "widget": {
    "formlyConfig": {
      "wrappers": ["custom_wrapper"]
      validators: {
        validation: ['customUniqueValidation'],
      },
    }
  }
}

to define a custom validation you may check our demo example https://formly.dev/examples/validation/custom-validation