Different case in flat map

[vladaman]

Affected version: 5.6.0

Setting following in build.yaml does not seem to have effect on generated maps case:

      key_map_case: pascal
      flat_map: false
      maps:
        - ProjectActivityType
        - AddressBookType

1. When flat_map is false it does not generate any maps in strings.g.dart
2. Even when flat_map is enabled to true than the key_map_case case transformation is ignored.

JSON:

{
  "AddressBookType": {
    "COMPANY": "Company",
    "PERSON": "Person"
  }
}

will produce nin strings.g.dart:

AppLocale.cs: {
  'addressBookType.company': 'Firma',
  'addressBookType.person': 'Osoba',
}

[Tienisto]

Hi,

Did you configure key_case: camel? Then the maps should also follow the case:

key_case: camel
key_map_case: pascal
flat_map: false
maps:
  - projectActivityType
  - addressBookType

[vladaman]

Thanks, but still doesn't seem to work as we expect. With following example we'd expect the flat map will be generted just for maps mentioned in the list. Neither of them work. None of the maps is generated. We'd expect the regular keys be converted into camel case, and maps for these objects generated with Pascal case.

          key_case: camel
          key_map_case: pascal
          flat_map: false
          maps:
            - ProjectActivityType
            - AddressBookType
            - addressBookType

[Tienisto]

You mean this following map?

AppLocale.cs: {
  'addressBookType.company': 'Firma',
  'addressBookType.person': 'Osoba',
}

Then flat_map needs to be true. The flat map is the map containing all translations regardless of "map" or "not map".
It is the one-dimensional map (hence flat) for all translations.

Actually, I don't know exactly what you are going to do... If you want to access the keys dynamically, then this should be enough:

final t = Translations.of(context);
String a = t.projectActivityType['Company']; // Company because pascal case is applied

Just to make sure: key_map_case applies to all keys inside a map, key_case applies to all other keys, therefore also to all map parents like addressBookType.

[Tienisto]

It seems to be alright on my side.

[vladaman]

Sorry @Tienisto , but I am still having issues. My config is:

key_case: camel
key_map_case: snake
flat_map: true
maps:
   - ProjectActivityType
   - AddressBookType
   - FieldType

But unfortunately the maps in strings.g.dart are still translated to:

'fieldType.lplate': 'License plate',
'fieldType.desc': 'Description',
'fieldType.contactInvestor': 'Contact Investor',

In .json file we have following:

"FieldType": {
 "LPLATE": "License plate",
 "DESC": "Description",
 "CONTACT_INVESTOR": "Contact Investor",

I would expect the map keys to be in snake case but it's not. But our use case is different. We'd like to use camel case but ONLY for maps to disable any text transformations. Reason is we use enums like:

// The key will be "FieldType.LPLATE"
labelText: t[FieldType.LPLATE.toString()]

[Tienisto]

Alright,

currently, it is not possible to have different cases.

key_map_case only applies to local maps (i.e. t.error['camel_case']).

I think a new configuration flat_map_key_case should be implemented.

[Tienisto]

I think there is no elegant solution for your problem.

FieldType.LPLATE.toString() will be probably calculated as FieldType.LPLATE. This string contains 2 different cases.

The best solution would be to use the new dart enum feature: FieldType.LPLATE.name. Then you will get LPLATE.

Then use the following config:

key_case: pascal
# do not set key_map_case, so we retain the UPPERCASE_SNAKE case
maps:
  - FieldType

Will generate:

Map<String, String> get FieldType => {
	'LPLATE': 'License plate',
	'DESC': 'Description',
	'CONTACT_INVESTOR': 'Contact Investor',
};

Usage:

String a = t.FieldType['CONTACT_INVESTOR'];
String b = t.FieldType[FieldType.LPLATE.name];