Refactor types

packages/core/database/src/connection.ts

@@ -1,11 +1,9 @@
-/* eslint-disable import/no-extraneous-dependencies */
-
 import knex, { Knex } from 'knex';
-
 import SqliteClient from 'knex/lib/dialects/sqlite3/index';
 
 class LegacySqliteClient extends SqliteClient {
   _driver() {
+    /* eslint-disable-next-line import/no-extraneous-dependencies */
     return require('sqlite3');
   }
 }

packages/core/database/src/entity-manager/entity-repository.ts

@@ -1,6 +1,6 @@
 import { isString } from 'lodash/fp';
 import type { Database } from '..';
-import type { ID } from '../typings';
+import type { ID } from '../types';
 
 type Params = Record<string, unknown>;
 type Data = Record<string, unknown>;

packages/core/database/src/entity-manager/index.ts

@@ -26,7 +26,7 @@ import {
 } from 'lodash/fp';
 
 import { mapAsync } from '@strapi/utils';
-import * as types from '../types';
+import * as types from '../utils/types';
 import { createField } from '../fields';
 import { createQueryBuilder } from '../query';
 import { createRepository } from './entity-repository';
@@ -38,7 +38,7 @@ import {
   isOneToAny,
   hasOrderColumn,
   hasInverseOrderColumn,
-} from '../metadata/relations';
+} from '../metadata';
 import {
   deletePreviousOneToAnyRelations,
   deletePreviousAnyToOneRelations,
@@ -52,8 +52,8 @@ import {
 } from './relations/cloning/regular-relations';
 import { DatabaseError } from '../errors';
 import type { Database } from '..';
-import type { Meta } from '../metadata/types';
-import type { ID } from '../typings';
+import type { Meta } from '../metadata';
+import type { ID } from '../types';
 
 type Params = {
   where?: any;

packages/core/database/src/entity-manager/morph-relations.ts

@@ -3,7 +3,7 @@ import type { Knex } from 'knex';
 
 import { createQueryBuilder } from '../query';
 import type { Database } from '..';
-import type { MorphJoinTable, Relation } from '../metadata/types';
+import type { MorphJoinTable, Relation } from '../types';
 
 type Rows = Record<string, unknown>[];
 

packages/core/database/src/entity-manager/regular-relations.ts

@@ -10,12 +10,11 @@ import {
   isAnyToOne,
   hasOrderColumn,
   hasInverseOrderColumn,
-} from '../metadata/relations';
+} from '../metadata';
 import { createQueryBuilder } from '../query';
 import { addSchema } from '../utils/knex';
 import type { Database } from '..';
-import type { ID } from '../typings';
-import type { Relation } from '../metadata/types';
+import type { ID, Relation } from '../types';
 
 declare module 'knex' {
   namespace Knex {

packages/core/database/src/entity-manager/relations-orderer.ts

@@ -2,7 +2,7 @@ import { castArray, maxBy } from 'lodash/fp';
 import _ from 'lodash';
 
 import { InvalidRelationError } from '../errors';
-import type { ID } from '../typings';
+import type { ID } from '../types';
 
 interface Link {
   id: ID;

packages/core/database/src/entity-manager/relations/cloning/regular-relations.ts

@@ -1,8 +1,7 @@
 import { Knex } from 'knex';
 
 import { cleanInverseOrderColumn } from '../../regular-relations';
-import type { Relation } from '../../../metadata/types';
-import { ID } from '../../../typings';
+import type { ID, Relation } from '../../../types';
 
 const replaceRegularRelations = async ({
   targetId,

packages/core/database/src/fields/index.ts

@@ -11,7 +11,7 @@ import DatetimeField from './datetime';
 import TimestampField from './timestamp';
 import BooleanField from './boolean';
 
-import type { Attribute } from '../metadata/types';
+import type { Attribute } from '../types';
 
 const typeToFieldMap: Record<string, typeof Field> = {
   increments: Field,

packages/core/database/src/lifecycles/types.ts

@@ -1,4 +1,4 @@
-import type { Meta, Model } from '../metadata/types';
+import type { Meta } from '../metadata';
 
 export type Action =
   | 'beforeCreate'

packages/core/database/src/metadata/index.ts

@@ -1,11 +1,31 @@
 import _ from 'lodash/fp';
 
-import * as types from '../types';
-import { createRelation } from './relations';
-import { Metadata, Relation } from './types';
-import type { Attribute, Model, Meta, ComponentLinkMeta } from './types';
+import * as types from '../utils/types';
+import {
+  createRelation,
+  getJoinTableName,
+  isPolymorphic,
+  isBidirectional,
+  isAnyToOne,
+  isOneToAny,
+  hasOrderColumn,
+  hasInverseOrderColumn,
+  isManyToAny,
+} from './relations';
+import { Metadata, Meta, ComponentLinkMeta } from './metadata';
+import type { Attribute, Model, Relation } from '../types';
 
-export { Metadata };
+export type { Metadata, Meta };
+export {
+  getJoinTableName,
+  isPolymorphic,
+  isBidirectional,
+  isAnyToOne,
+  isOneToAny,
+  hasOrderColumn,
+  hasInverseOrderColumn,
+  isManyToAny,
+};
 
 // TODO: check if there isn't an attribute with an id already
 /**
@@ -21,17 +41,16 @@ export const createMetadata = (models: Model[] = []): Metadata => {
     }
 
     metadata.add({
-      singularName: model.singularName,
-      uid: model.uid,
-      tableName: model.tableName,
+      ...model,
       attributes: {
         id: {
           type: 'increments',
         },
         ...model.attributes,
       },
-      lifecycles: model.lifecycles ?? ({} as Meta['lifecycles']),
+      lifecycles: model.lifecycles ?? {},
       indexes: model.indexes || [],
+      foreignKeys: model.foreignKeys || [],
       columnToAttribute: {},
     });
   }
@@ -98,11 +117,13 @@ const hasComponentsOrDz = (model: Meta): model is ComponentLinkMeta => {
 
 // NOTE: we might just move the compo logic outside this layer too at some point
 const createCompoLinkModelMeta = (baseModelMeta: Meta): Meta => {
+  const name = `${baseModelMeta.tableName}_components`;
+
   return {
     // TODO: make sure there can't be any conflicts with a prefix
-    // singularName: 'compo',
-    uid: `${baseModelMeta.tableName}_components`,
-    tableName: `${baseModelMeta.tableName}_components`,
+    singularName: name,
+    uid: name,
+    tableName: name,
     attributes: {
       id: {
         type: 'increments',
@@ -161,6 +182,7 @@ const createCompoLinkModelMeta = (baseModelMeta: Meta): Meta => {
         onDelete: 'CASCADE',
       },
     ],
+    lifecycles: {},
     columnToAttribute: {},
   };
 };

packages/core/database/src/metadata/metadata.ts

@@ -0,0 +1,44 @@
+import type { Model } from '../types';
+import type { ForeignKey, Index } from '../schema/types';
+import type { Action, SubscriberFn } from '../lifecycles';
+
+export interface ComponentLinkMeta extends Meta {
+  componentLink: Meta;
+}
+
+export interface Meta extends Model {
+  columnToAttribute: Record<string, string>;
+  componentLink?: Meta;
+  indexes: Index[];
+  foreignKeys: ForeignKey[];
+  lifecycles: Partial<Record<Action, SubscriberFn>>;
+}
+
+export class Metadata extends Map<string, Meta> {
+  get(key: string): Meta {
+    if (!super.has(key)) {
+      throw new Error(`Metadata for "${key}" not found`);
+    }
+
+    return super.get(key) as Meta;
+  }
+
+  add(meta: Meta) {
+    return this.set(meta.uid, meta);
+  }
+
+  /**
+   * Validate the DB metadata, throwing an error if a duplicate DB table name is detected
+   */
+  validate() {
+    const seenTables = new Map();
+    for (const meta of this.values()) {
+      if (seenTables.get(meta.tableName)) {
+        throw new Error(
+          `DB table "${meta.tableName}" already exists. Change the collectionName of the related content type.`
+        );
+      }
+      seenTables.set(meta.tableName, true);
+    }
+  }
+}

packages/core/database/src/metadata/relations.ts

@@ -1,6 +1,7 @@
 import _ from 'lodash/fp';
 
-import type { Meta, RelationalAttribute, Relation, Metadata, MorphJoinTable } from './types';
+import type { Meta, Metadata } from './metadata';
+import type { RelationalAttribute, Relation, MorphJoinTable } from '../types';
 
 interface JoinColumnOptions {
   attribute: (Relation.OneToOne | Relation.ManyToOne) & Relation.Owner;
@@ -245,6 +246,7 @@ const createMorphToMany = (
   const typeColumnName = `${morphColumnName}_type`;
 
   metadata.add({
+    singularName: joinTableName,
     uid: joinTableName,
     tableName: joinTableName,
     attributes: {
@@ -299,6 +301,7 @@ const createMorphToMany = (
         onDelete: 'CASCADE',
       },
     ],
+    lifecycles: {},
     columnToAttribute: {},
   });
 
@@ -429,6 +432,7 @@ const createJoinTable = (
   }
 
   const metadataSchema: Meta = {
+    singularName: joinTableName,
     uid: joinTableName,
     tableName: joinTableName,
     attributes: {
@@ -480,6 +484,7 @@ const createJoinTable = (
         onDelete: 'CASCADE',
       },
     ],
+    lifecycles: {},
     columnToAttribute: {},
   };
 

packages/core/database/src/metadata/types.ts

@@ -1,269 +0,0 @@
-import type { Action, SubscriberFn } from '../lifecycles';
-import type { ForeignKey, Index } from '../schema/types';
-
-export interface ColumnInfo {
-  unsigned?: boolean;
-  defaultTo?: unknown;
-}
-
-export type Attribute = ScalarAttribute | RelationalAttribute;
-
-export type RelationalAttribute =
-  | Relation.OneToOne
-  | Relation.OneToMany
-  | Relation.ManyToOne
-  | Relation.ManyToMany
-  | Relation.MorphMany
-  | Relation.MorphOne
-  | Relation.MorphToOne
-  | Relation.MorphToMany;
-
-export interface BasAttribute {
-  type: string;
-  columnName?: string;
-  default?: any;
-  column?: ColumnInfo;
-  required?: boolean;
-  unique?: boolean;
-  component?: string;
-  repeatable?: boolean;
-  columnType?: {
-    type: string;
-    args: unknown[];
-  };
-  searchable?: boolean;
-}
-
-export interface ScalarAttribute extends BasAttribute {
-  type:
-    | 'increments'
-    | 'password'
-    | 'email'
-    | 'string'
-    | 'enumeration'
-    | 'uid'
-    | 'richtext'
-    | 'text'
-    | 'json'
-    | 'integer'
-    | 'biginteger'
-    | 'float'
-    | 'decimal'
-    | 'boolean'
-    | 'date'
-    | 'time'
-    | 'datetime'
-    | 'timestamp';
-}
-
-export interface JoinColumn {
-  name: string;
-  referencedColumn: string;
-  referencedTable?: string;
-}
-
-export interface BaseJoinTable {
-  name: string;
-  joinColumn: JoinColumn;
-  orderBy?: Record<string, 'asc' | 'desc'>;
-  on?: Record<string, unknown>;
-  pivotColumns: string[];
-  inverseJoinColumn: {
-    name: string;
-    referencedColumn: string;
-  };
-}
-
-export interface JoinTable extends BaseJoinTable {
-  orderColumnName?: string;
-  inverseOrderColumnName?: string;
-}
-
-export interface OrderedJoinTable extends BaseJoinTable {
-  orderColumnName: string;
-  inverseOrderColumnName: string;
-}
-
-// eslint-disable-next-line @typescript-eslint/no-namespace
-export namespace Relation {
-  export type Owner = {
-    inversedBy: string;
-  };
-
-  export type WithTarget = {
-    target: string;
-  };
-
-  export type Bidirectional = OneToOne | OneToMany | ManyToOne | ManyToMany;
-
-  type BaseBidirectional = {
-    type: 'relation';
-    relation: 'oneToOne' | 'oneToMany' | 'manyToOne' | 'manyToMany';
-    target: string;
-    inversedBy?: string;
-    mappedBy?: string;
-    joinTable: BidirectionalAttributeJoinTable;
-  };
-
-  export type OneToOne = BaseBidirectional & {
-    relation: 'oneToOne';
-    useJoinTable?: boolean;
-    joinTable?: JoinTable;
-    joinColumn?: JoinColumn;
-    owner?: boolean;
-  };
-
-  export type OneToMany = BaseBidirectional & {
-    relation: 'oneToMany';
-    joinTable: OrderedJoinTable;
-    joinColumn?: JoinColumn;
-    owner?: boolean;
-  };
-
-  export type ManyToOne = BaseBidirectional & {
-    relation: 'manyToOne';
-    useJoinTable?: boolean;
-    joinTable?: JoinTable;
-    joinColumn?: JoinColumn;
-    owner?: boolean;
-  };
-
-  export type ManyToMany = BaseBidirectional & {
-    relation: 'manyToMany';
-    joinTable: OrderedJoinTable;
-  };
-
-  export type Morph = MorphMany | MorphOne | MorphToOne | MorphToMany;
-
-  export type MorphMany = {
-    type: 'relation';
-    relation: 'morphMany';
-    target: string;
-    morphBy: string;
-    joinTable: MorphJoinTable;
-  };
-
-  export type MorphOne = {
-    type: 'relation';
-    relation: 'morphOne';
-    target: string;
-    morphBy: string;
-  };
-
-  export type MorphToOne = {
-    type: 'relation';
-    relation: 'morphToOne';
-    owner?: boolean;
-    morphColumn: MorphColumn;
-  };
-
-  export type MorphToMany = {
-    type: 'relation';
-    relation: 'morphToMany';
-    joinTable: MorphJoinTable;
-  };
-}
-
-export interface BidirectionalAttributeJoinTable extends JoinTable {
-  orderColumnName: string;
-  inverseOrderColumnName: string;
-}
-
-export interface MorphColumn {
-  typeField?: string;
-  typeColumn: {
-    name: string;
-  };
-  idColumn: {
-    name: string;
-    referencedColumn: string;
-  };
-}
-
-export interface MorphJoinTable {
-  name: string;
-  joinColumn: JoinColumn;
-  orderBy?: Record<string, 'asc' | 'desc'>;
-  on?: Record<string, unknown>;
-  pivotColumns: string[];
-  morphColumn: MorphColumn;
-}
-
-export interface BaseRelationalAttribute {
-  type: 'relation';
-  target: string;
-  useJoinTable?: boolean;
-  joinTable?: JoinTable | MorphJoinTable;
-  morphBy?: string;
-  inversedBy?: string;
-  owner?: boolean;
-  morphColumn?: MorphColumn;
-  joinColumn?: JoinColumn;
-  // TODO: remove this
-  component?: string;
-}
-
-export interface MorphRelationalAttribute extends BaseRelationalAttribute {
-  relation: 'morphMany' | 'morphOne' | 'morphToOne' | 'morphToMany';
-  morphColumn: MorphColumn;
-  morphBy: string;
-  joinTable: MorphJoinTable;
-  target: string;
-}
-
-export interface Meta {
-  singularName?: string;
-  uid: string;
-  tableName: string;
-  attributes: Record<string, Attribute>;
-  indexes: Index[];
-  foreignKeys?: ForeignKey[];
-  lifecycles?: Record<Action, SubscriberFn>;
-  columnToAttribute: Record<string, string>;
-  componentLink?: Meta;
-}
-
-export interface ComponentLinkMeta extends Meta {
-  componentLink: Meta;
-}
-
-export interface Model {
-  uid: string;
-  tableName: string;
-  singularName: string;
-  attributes: Record<string, Attribute>;
-  lifecycles?: Record<Action, SubscriberFn>;
-  indexes: Index[];
-  componentLink?: Meta;
-  columnToAttribute?: Record<string, string>;
-  foreignKeys?: Record<string, unknown>[];
-}
-
-export class Metadata extends Map<string, Meta> {
-  get(key: string): Meta {
-    if (!super.has(key)) {
-      throw new Error(`Metadata for "${key}" not found`);
-    }
-
-    return super.get(key) as Meta;
-  }
-
-  add(meta: Meta) {
-    return this.set(meta.uid, meta);
-  }
-
-  /**
-   * Validate the DB metadata, throwing an error if a duplicate DB table name is detected
-   */
-  validate() {
-    const seenTables = new Map();
-    for (const meta of this.values()) {
-      if (seenTables.get(meta.tableName)) {
-        throw new Error(
-          `DB table "${meta.tableName}" already exists. Change the collectionName of the related content type.`
-        );
-      }
-      seenTables.set(meta.tableName, true);
-    }
-  }
-}

packages/core/database/src/query/helpers/order-by.ts

@@ -1,6 +1,6 @@
 import _ from 'lodash/fp';
 
-import * as types from '../../types';
+import * as types from '../../utils/types';
 import { createJoin } from './join';
 import { toColumnName } from './transform';
 

packages/core/database/src/query/helpers/populate/apply.ts

@@ -1,10 +1,10 @@
 import _ from 'lodash/fp';
 
-import { Rec, fromRow } from '../transform';
+import { fromRow } from '../transform';
 import type { QueryBuilder } from '../../query-builder';
 import type { Database } from '../../..';
-import type { Meta, RelationalAttribute, Relation } from '../../../metadata/types';
-import { ID } from '../../../typings';
+import type { Meta } from '../../../metadata';
+import { ID, RelationalAttribute, Relation } from '../../../types';
 
 type Context = {
   db: Database;

packages/core/database/src/query/helpers/populate/process.ts

@@ -1,7 +1,7 @@
 import _ from 'lodash/fp';
 
-import * as types from '../../../types';
-import type { Meta } from '../../../metadata/types';
+import * as types from '../../../utils/types';
+import type { Meta } from '../../../metadata';
 import type { QueryBuilder } from '../../query-builder';
 import type { Database } from '../../..';
 

packages/core/database/src/query/helpers/search.ts

@@ -1,7 +1,7 @@
 import _ from 'lodash/fp';
 import type { Knex } from 'knex';
 
-import * as types from '../../types';
+import * as types from '../../utils/types';
 import { toColumnName } from './transform';
 import type { Ctx } from '../types';
 

packages/core/database/src/query/helpers/streams/readable.ts

@@ -6,7 +6,7 @@ import type { Database } from '../../..';
 
 import { applyPopulate } from '../populate';
 import { fromRow } from '../transform';
-import { Meta } from '../../../metadata/types';
+import { Meta } from '../../../metadata';
 
 const knexQueryDone = Symbol('knexQueryDone');
 const knexPerformingQuery = Symbol('knexPerformingQuery');

packages/core/database/src/query/helpers/transform.ts

@@ -1,9 +1,9 @@
 import _ from 'lodash/fp';
 
-import * as types from '../../types';
+import * as types from '../../utils/types';
 import { createField } from '../../fields';
 
-import type { Meta } from '../../metadata/types';
+import type { Meta } from '../../metadata';
 
 type Row = Record<string, unknown> | null;
 export type Rec = Record<string, unknown> | null;

packages/core/database/src/query/helpers/where.ts

@@ -3,14 +3,14 @@ import { isArray, castArray, keys, isPlainObject } from 'lodash/fp';
 import type { Knex } from 'knex';
 
 import { isOperatorOfType } from '@strapi/utils';
-import * as types from '../../types';
+import * as types from '../../utils/types';
 import { createField } from '../../fields';
 import { createJoin } from './join';
 import { toColumnName } from './transform';
 import { isKnexQuery } from '../../utils/knex';
 
-import type { Attribute } from '../../metadata/types';
 import type { Ctx } from '../types';
+import type { Attribute } from '../../types';
 
 const isObj = (value: unknown): value is Record<string, unknown> => isPlainObject(value);
 

packages/core/database/src/schema/schema.ts

@@ -1,7 +1,8 @@
-import * as types from '../types';
+import * as types from '../utils/types';
 
-import type { Metadata, Meta, Attribute } from '../metadata/types';
+import type { Metadata, Meta } from '../metadata';
 import type { Column, Schema, Table } from './types';
+import type { Attribute } from '../types';
 
 const createColumn = (name: string, attribute: Attribute): Column => {
   const { type, args = [], ...opts } = getColumnType(attribute);

packages/core/database/src/types/index.ts

@@ -1,36 +1,223 @@
-import type { Attribute, ScalarAttribute, RelationalAttribute } from '../metadata/types';
+import type { Action, SubscriberFn } from '../lifecycles';
+import type { ForeignKey, Index } from '../schema/types';
 
-const SCALAR_TYPES = [
-  'increments',
-  'password',
-  'email',
-  'string',
-  'uid',
-  'richtext',
-  'text',
-  'json',
-  'enumeration',
-  'integer',
-  'biginteger',
-  'float',
-  'decimal',
-  'date',
-  'time',
-  'datetime',
-  'timestamp',
-  'boolean',
-];
+export type ID = string | number;
+export interface ColumnInfo {
+  unsigned?: boolean;
+  defaultTo?: unknown;
+}
 
-const STRING_TYPES = ['string', 'text', 'uid', 'email', 'enumeration', 'richtext'];
-const NUMBER_TYPES = ['biginteger', 'integer', 'decimal', 'float'];
+export type Attribute = ScalarAttribute | RelationalAttribute;
 
-export const isString = (type: string) => STRING_TYPES.includes(type);
-export const isNumber = (type: string) => NUMBER_TYPES.includes(type);
-export const isScalar = (type: string) => SCALAR_TYPES.includes(type);
-export const isComponent = (type: string) => type === 'component';
-export const isDynamicZone = (type: string) => type === 'dynamiczone';
-export const isRelation = (type: string) => type === 'relation';
-export const isScalarAttribute = (attribute: Attribute): attribute is ScalarAttribute =>
-  isScalar(attribute.type);
-export const isRelationalAttribute = (attribute: Attribute): attribute is RelationalAttribute =>
-  isRelation(attribute.type);
+export type RelationalAttribute =
+  | Relation.OneToOne
+  | Relation.OneToMany
+  | Relation.ManyToOne
+  | Relation.ManyToMany
+  | Relation.MorphMany
+  | Relation.MorphOne
+  | Relation.MorphToOne
+  | Relation.MorphToMany;
+
+export interface BasAttribute {
+  type: string;
+  columnName?: string;
+  default?: any;
+  column?: ColumnInfo;
+  required?: boolean;
+  unique?: boolean;
+  component?: string;
+  repeatable?: boolean;
+  columnType?: {
+    type: string;
+    args: unknown[];
+  };
+  searchable?: boolean;
+}
+
+export interface ScalarAttribute extends BasAttribute {
+  type:
+    | 'increments'
+    | 'password'
+    | 'email'
+    | 'string'
+    | 'enumeration'
+    | 'uid'
+    | 'richtext'
+    | 'text'
+    | 'json'
+    | 'integer'
+    | 'biginteger'
+    | 'float'
+    | 'decimal'
+    | 'boolean'
+    | 'date'
+    | 'time'
+    | 'datetime'
+    | 'timestamp';
+}
+
+export interface JoinColumn {
+  name: string;
+  referencedColumn: string;
+  referencedTable?: string;
+}
+
+export interface BaseJoinTable {
+  name: string;
+  joinColumn: JoinColumn;
+  orderBy?: Record<string, 'asc' | 'desc'>;
+  on?: Record<string, unknown>;
+  pivotColumns: string[];
+  inverseJoinColumn: {
+    name: string;
+    referencedColumn: string;
+  };
+}
+
+export interface JoinTable extends BaseJoinTable {
+  orderColumnName?: string;
+  inverseOrderColumnName?: string;
+}
+
+export interface OrderedJoinTable extends BaseJoinTable {
+  orderColumnName: string;
+  inverseOrderColumnName: string;
+}
+
+// eslint-disable-next-line @typescript-eslint/no-namespace
+export namespace Relation {
+  export type Owner = {
+    inversedBy: string;
+  };
+
+  export type WithTarget = {
+    target: string;
+  };
+
+  export type Bidirectional = OneToOne | OneToMany | ManyToOne | ManyToMany;
+
+  type BaseBidirectional = {
+    type: 'relation';
+    relation: 'oneToOne' | 'oneToMany' | 'manyToOne' | 'manyToMany';
+    target: string;
+    inversedBy?: string;
+    mappedBy?: string;
+    joinTable: BidirectionalAttributeJoinTable;
+  };
+
+  export type OneToOne = BaseBidirectional & {
+    relation: 'oneToOne';
+    useJoinTable?: boolean;
+    joinTable?: JoinTable;
+    joinColumn?: JoinColumn;
+    owner?: boolean;
+  };
+
+  export type OneToMany = BaseBidirectional & {
+    relation: 'oneToMany';
+    joinTable: OrderedJoinTable;
+    joinColumn?: JoinColumn;
+    owner?: boolean;
+  };
+
+  export type ManyToOne = BaseBidirectional & {
+    relation: 'manyToOne';
+    useJoinTable?: boolean;
+    joinTable?: JoinTable;
+    joinColumn?: JoinColumn;
+    owner?: boolean;
+  };
+
+  export type ManyToMany = BaseBidirectional & {
+    relation: 'manyToMany';
+    joinTable: OrderedJoinTable;
+  };
+
+  export type Morph = MorphMany | MorphOne | MorphToOne | MorphToMany;
+
+  export type MorphMany = {
+    type: 'relation';
+    relation: 'morphMany';
+    target: string;
+    morphBy: string;
+    joinTable: MorphJoinTable;
+  };
+
+  export type MorphOne = {
+    type: 'relation';
+    relation: 'morphOne';
+    target: string;
+    morphBy: string;
+  };
+
+  export type MorphToOne = {
+    type: 'relation';
+    relation: 'morphToOne';
+    owner?: boolean;
+    morphColumn: MorphColumn;
+  };
+
+  export type MorphToMany = {
+    type: 'relation';
+    relation: 'morphToMany';
+    joinTable: MorphJoinTable;
+  };
+}
+
+export interface BidirectionalAttributeJoinTable extends JoinTable {
+  orderColumnName: string;
+  inverseOrderColumnName: string;
+}
+
+export interface MorphColumn {
+  typeField?: string;
+  typeColumn: {
+    name: string;
+  };
+  idColumn: {
+    name: string;
+    referencedColumn: string;
+  };
+}
+
+export interface MorphJoinTable {
+  name: string;
+  joinColumn: JoinColumn;
+  orderBy?: Record<string, 'asc' | 'desc'>;
+  on?: Record<string, unknown>;
+  pivotColumns: string[];
+  morphColumn: MorphColumn;
+}
+
+export interface BaseRelationalAttribute {
+  type: 'relation';
+  target: string;
+  useJoinTable?: boolean;
+  joinTable?: JoinTable | MorphJoinTable;
+  morphBy?: string;
+  inversedBy?: string;
+  owner?: boolean;
+  morphColumn?: MorphColumn;
+  joinColumn?: JoinColumn;
+  // TODO: remove this
+  component?: string;
+}
+
+export interface MorphRelationalAttribute extends BaseRelationalAttribute {
+  relation: 'morphMany' | 'morphOne' | 'morphToOne' | 'morphToMany';
+  morphColumn: MorphColumn;
+  morphBy: string;
+  joinTable: MorphJoinTable;
+  target: string;
+}
+
+export interface Model {
+  uid: string;
+  tableName: string;
+  singularName: string;
+  attributes: Record<string, Attribute>;
+  indexes?: Index[];
+  foreignKeys?: ForeignKey[];
+  lifecycles?: Partial<Record<Action, SubscriberFn>>;
+}

packages/core/database/src/typings.ts

@@ -1 +0,0 @@
-export type ID = string | number;

packages/core/database/src/utils/types.ts

@@ -0,0 +1,36 @@
+import type { Attribute, ScalarAttribute, RelationalAttribute } from '../types';
+
+const SCALAR_TYPES = [
+  'increments',
+  'password',
+  'email',
+  'string',
+  'uid',
+  'richtext',
+  'text',
+  'json',
+  'enumeration',
+  'integer',
+  'biginteger',
+  'float',
+  'decimal',
+  'date',
+  'time',
+  'datetime',
+  'timestamp',
+  'boolean',
+];
+
+const STRING_TYPES = ['string', 'text', 'uid', 'email', 'enumeration', 'richtext'];
+const NUMBER_TYPES = ['biginteger', 'integer', 'decimal', 'float'];
+
+export const isString = (type: string) => STRING_TYPES.includes(type);
+export const isNumber = (type: string) => NUMBER_TYPES.includes(type);
+export const isScalar = (type: string) => SCALAR_TYPES.includes(type);
+export const isComponent = (type: string) => type === 'component';
+export const isDynamicZone = (type: string) => type === 'dynamiczone';
+export const isRelation = (type: string) => type === 'relation';
+export const isScalarAttribute = (attribute: Attribute): attribute is ScalarAttribute =>
+  isScalar(attribute.type);
+export const isRelationalAttribute = (attribute: Attribute): attribute is RelationalAttribute =>
+  isRelation(attribute.type);

packages/core/database/src/validations/relations/bidirectional.ts

@@ -1,7 +1,7 @@
-import { getJoinTableName } from '../../metadata/relations';
+import { getJoinTableName } from '../../metadata';
 
 import type { Database } from '../..';
-import type { Relation } from '../../metadata/types';
+import type { Relation } from '../../types';
 
 type Link = {
   relation: Relation.Bidirectional & { inversedBy: string };