[Feature Request] grouped unique constraint

[rendyep]

Table declaration:

const SqfEntityTable tableAgeGroup = SqfEntityTable(
  tableName: 'ageGroup',
  primaryKeyName: 'id',
  primaryKeyType: PrimaryKeyType.integer_auto_incremental,
  useSoftDeleting: false,
  fields: [
    SqfEntityField(
      'minAge',
      DbType.integer,
      isUnique: true,
      isNotNull: true,
    ),
    SqfEntityField(
      'maxAge',
      DbType.integer,
      isUnique: true,
      isNotNull: true,
    ),
    SqfEntityField(
      'label',
      DbType.text,
      isUnique: true,
      isNotNull: true,
    ),
  ],
);

Test & output:

  var model1 = AgeGroup.withFields(1, 2, "1 to 2");
  await model1.save();
  print(model1.saveResult);
  // ageGroup-> id=1 saved successfully
  
  var model2 = AgeGroup.withFields(1, 2, "1 to 2");
  await model2.save();
  print(model2.saveResult);
  // ageGroup-> Save failed. Error: DatabaseException(error code 19: UNIQUE constraint failed: ageGroup.label) sql 'INSERT INTO ageGroup (id, minAge, maxAge, label) VALUES (NULL, ?, ?, ?)' args [1, 2, 1 to 2]
  
  var model3 = AgeGroup.withFields(1, 5, "1 to 5");
  await model3.save();
  print(model3.saveResult);
  // ageGroup-> Save failed. Error: DatabaseException(error code 19: UNIQUE constraint failed: ageGroup.minAge) sql 'INSERT INTO ageGroup (id, minAge, maxAge, label) VALUES (NULL, ?, ?, ?)' args [1, 5, 1 to 5]

I have tried using isIndexGroup, but the output of model3 indicated that it doesn't work. Probably isIndexGroup is designed only for index grouping.

Request:

1. Multiple columns unique constraint, would be nice using isUniqueGroup parameter (like the isIndexGroup) or similar parameter name.

[rendyep]

it seems like it has been addressed in #128
I just can't get where should I put the isPrimarykey parameter?

[hhtokpinar]

You could remove the primary key id, and just add isPrimaryKey parameters into other keys instead of isUnique like below

SqfEntityField(
      'maxAge',
      DbType.integer,
      isPrimaryKey: true,
      isNotNull: true,
    ),