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Repository Mixins removed ​

FieldsVisibilityMixin and DefaultFilterMixin were removed from IGNIS - this page is a tombstone documenting where their behavior lives now. For the current repository hierarchy, start with the Repositories overview.

Files:

Removed

FieldsVisibilityMixin and DefaultFilterMixin are no longer exported and must not be imported or composed in new code.

What They Were ​

Before the connectors restructure, AbstractRepository composed two mixins onto BaseHelper:

MixinResponsibility
FieldsVisibilityMixinHidden-properties exclusion at SQL level (reads hiddenProperties from @model settings)
DefaultFilterMixinAutomatic default-filter merging (reads defaultFilter from @model settings)

Where the Behavior Lives Now ​

The functionality was not dropped - it was folded directly into the repository hierarchy.

Engine-neutral: AbstractRepository ​

AbstractRepository resolves @model settings by class (Reflect target) via MetadataRegistry and exposes them as protected getters, memoized after first access:

typescript
protected get modelSettings(): IModelMetadata['settings'];  // full @model settings
protected get hiddenFields(): string[];                     // settings.hiddenProperties ?? []
protected get defaultWhere(): TWhere | undefined;           // settings.defaultFilter?.where
protected get defaultLimit(): number | undefined;           // settings.defaultLimit

PostgreSQL: RelationalBaseRepository ​

Builds on those getters to implement SQL-level column exclusion and full-filter merging for Drizzle:

typescript
getHiddenProperties(): Set<string>;                       // memoized Set of hiddenFields
hasHiddenProperties(): boolean;
getVisibleProperties(): Record<string, any> | undefined;  // memoized Drizzle column-selection map

getDefaultFilter(): TFilter | undefined;                  // settings.defaultFilter
getDefaultLimit(): number | undefined;
hasDefaultFilter(): boolean;
applyDefaultFilter(opts: {
  userFilter?: TFilter;
  shouldSkipDefaultFilter?: boolean;
}): TFilter;                                              // merges via queryDialect.mergeFilter

Hidden columns are excluded from select() and returning() calls at query time - the same SQL-level guarantee the mixins provided. The typesense connector implements its own equivalent natively since it is not Drizzle-aware.

Migration ​

Old (mixin)New
FieldsVisibilityMixin -> getHiddenProperties()RelationalBaseRepository.getHiddenProperties()
FieldsVisibilityMixin -> getVisibleProperties()RelationalBaseRepository.getVisibleProperties()
FieldsVisibilityMixin -> hasHiddenProperties()RelationalBaseRepository.hasHiddenProperties()
DefaultFilterMixin -> getDefaultFilter()RelationalBaseRepository.getDefaultFilter()
DefaultFilterMixin -> hasDefaultFilter()RelationalBaseRepository.hasDefaultFilter()
DefaultFilterMixin -> applyDefaultFilter()RelationalBaseRepository.applyDefaultFilter()

If you extended DefaultCRUDRepository (or any class in the PostgreSQL hierarchy), no change is needed - these methods have always been available on your repository instances; only the internal composition changed.

Custom Mixins Still Work ​

The mixin pattern remains a valid technique for your own repository code, via TMixinTarget from @venizia/ignis-helpers:

typescript
import { TMixinTarget } from '@venizia/ignis-helpers';

export const AuditLogMixin = <T extends TMixinTarget<object>>(baseClass: T) => {
  class Mixed extends baseClass {
    logOperation(opts: { operation: string; data: unknown }): void {
      // custom behavior
    }
  }
  return Mixed;
};

export class ProductRepository extends AuditLogMixin(
  DefaultCRUDRepository<typeof Product.schema>,
) {}

See also ​