feat(types,utils): DML can create a bigNumber property (#7801)

what:

- adds bigNumber as a property to DML
- creates a bigNumber options field (`raw_{{ field }}`) as a part of the schema

RESOLVES CORE-2375

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

@@ -15,6 +15,7 @@ export type KnownDataTypes =
   | "boolean"
   | "enum"
   | "number"
+  | "bigNumber"
   | "dateTime"
   | "json"
   | "id"

packages/core/utils/src/dal/mikro-orm/big-number-field.ts

@@ -1,7 +1,7 @@
-import { Property } from "@mikro-orm/core"
-import { isPresent, trimZeros } from "../../common"
-import { BigNumber } from "../../totals/big-number"
 import { BigNumberInput } from "@medusajs/types"
+import { Property } from "@mikro-orm/core"
+import { isDefined, isPresent, trimZeros } from "../../common"
+import { BigNumber } from "../../totals/big-number"
 
 export function MikroOrmBigNumberProperty(
   options: Parameters<typeof Property>[0] & {
@@ -45,12 +45,22 @@ export function MikroOrmBigNumberProperty(
           const raw = bigNumber.raw!
           raw.value = trimZeros(raw.value as string)
 
-          this.__helper.__data[columnName] = bigNumber.numeric
+          // Note: this.__helper isn't present when directly working with the entity
-          this.__helper.__data[rawColumnName] = raw
+          // Adding this in optionally for it not to break.
+          if (isDefined(this.__helper)) {
+            this.__helper.__data[columnName] = bigNumber.numeric
+            this.__helper.__data[rawColumnName] = raw
+          }
 
           this[rawColumnName] = raw
         }
 
+        // Note: this.__helper isn't present when directly working with the entity
+        // Adding this in optionally for it not to break.
+        if (!isDefined(this.__helper)) {
+          return
+        }
+
         // This is custom code to keep track of which fields are bignumber, as well as their data
         if (!this.__helper.__bignumberdata) {
           this.__helper.__bignumberdata = {}

packages/core/utils/src/dml/__tests__/big-number-property.spec.ts

@@ -0,0 +1,19 @@
+import { expectTypeOf } from "expect-type"
+import { BigNumberProperty } from "../properties/big-number"
+
+describe("Big Number property", () => {
+  test("create bigNumber property type", () => {
+    const property = new BigNumberProperty()
+
+    expectTypeOf(property["$dataType"]).toEqualTypeOf<number>()
+    expect(property.parse("age")).toEqual({
+      fieldName: "age",
+      dataType: {
+        name: "bigNumber",
+      },
+      nullable: false,
+      indexes: [],
+      relationships: [],
+    })
+  })
+})

packages/core/utils/src/dml/__tests__/entity-builder.spec.ts

@@ -1,9 +1,12 @@
-import { expectTypeOf } from "expect-type"
 import { MetadataStorage } from "@mikro-orm/core"
-import { EntityConstructor } from "../types"
+import { expectTypeOf } from "expect-type"
-import { EntityBuilder } from "../entity-builder"
-import { createMikrORMEntity } from "../helpers/create-mikro-orm-entity"
 import { DmlEntity } from "../entity"
+import { EntityBuilder } from "../entity-builder"
+import {
+  createMikrORMEntity,
+  toMikroORMEntity,
+} from "../helpers/create-mikro-orm-entity"
+import { EntityConstructor } from "../types"
 
 describe("Entity builder", () => {
   beforeEach(() => {
@@ -32,14 +35,18 @@ describe("Entity builder", () => {
         id: model.number(),
         username: model.text(),
         email: model.text(),
+        spend_limit: model.bigNumber(),
       })
 
       const entityBuilder = createMikrORMEntity()
       const User = entityBuilder(user)
+
       expectTypeOf(new User()).toMatchTypeOf<{
         id: number
         username: string
         email: string
+        spend_limit: number
+        raw_spend_limit: Record<string, unknown>
         created_at: Date
         updated_at: Date
         deleted_at: Date | null
@@ -97,6 +104,25 @@ describe("Entity builder", () => {
           getter: false,
           setter: false,
         },
+        spend_limit: {
+          columnType: "numeric",
+          getter: true,
+          name: "spend_limit",
+          nullable: false,
+          reference: "scalar",
+          setter: true,
+          trackChanges: false,
+          type: "any",
+        },
+        raw_spend_limit: {
+          columnType: "jsonb",
+          getter: false,
+          name: "raw_spend_limit",
+          nullable: false,
+          reference: "scalar",
+          setter: false,
+          type: "any",
+        },
         updated_at: {
           reference: "scalar",
           type: "date",
@@ -127,6 +153,7 @@ describe("Entity builder", () => {
         id: model.number(),
         username: model.text().default("foo"),
         email: model.text(),
+        spend_limit: model.bigNumber().default(500.4),
       })
 
       const entityBuilder = createMikrORMEntity()
@@ -180,6 +207,26 @@ describe("Entity builder", () => {
           getter: false,
           setter: false,
         },
+        spend_limit: {
+          columnType: "numeric",
+          default: 500.4,
+          getter: true,
+          name: "spend_limit",
+          nullable: false,
+          reference: "scalar",
+          setter: true,
+          trackChanges: false,
+          type: "any",
+        },
+        raw_spend_limit: {
+          columnType: "jsonb",
+          getter: false,
+          name: "raw_spend_limit",
+          nullable: false,
+          reference: "scalar",
+          setter: false,
+          type: "any",
+        },
         created_at: {
           reference: "scalar",
           type: "date",
@@ -221,27 +268,44 @@ describe("Entity builder", () => {
         id: model.number(),
         username: model.text().nullable(),
         email: model.text(),
+        spend_limit: model.bigNumber().nullable(),
       })
 
-      const entityBuilder = createMikrORMEntity()
+      const User = toMikroORMEntity(user)
-      const User = entityBuilder(user)
+
       expectTypeOf(new User()).toMatchTypeOf<{
         id: number
         username: string | null
         email: string
+        spend_limit: number | null
+        raw_spend_limit: Record<string, unknown> | null
+        created_at: Date
+        updated_at: Date
         deleted_at: Date | null
       }>()
 
       const metaData = MetadataStorage.getMetadataFromDecorator(User)
+
       expect(metaData.className).toEqual("User")
       expect(metaData.path).toEqual("User")
 
       const userInstance = new User()
+
       expect(userInstance.username).toEqual(null)
 
+      expect(userInstance.spend_limit).toEqual(undefined)
+      expect(userInstance.raw_spend_limit).toEqual(null)
+
       userInstance.username = "john"
       expect(userInstance.username).toEqual("john")
 
+      userInstance.spend_limit = 150.5
+      expect(userInstance.spend_limit).toEqual(150.5)
+      expect(userInstance.raw_spend_limit).toEqual({
+        precision: 20,
+        value: "150.5",
+      })
+
       expect(metaData.filters).toEqual({
         softDeletable: {
           name: "softDeletable",
@@ -279,6 +343,25 @@ describe("Entity builder", () => {
           getter: false,
           setter: false,
         },
+        raw_spend_limit: {
+          columnType: "jsonb",
+          getter: false,
+          name: "raw_spend_limit",
+          nullable: true,
+          reference: "scalar",
+          setter: false,
+          type: "any",
+        },
+        spend_limit: {
+          columnType: "numeric",
+          getter: true,
+          name: "spend_limit",
+          nullable: true,
+          reference: "scalar",
+          setter: true,
+          trackChanges: false,
+          type: "any",
+        },
         created_at: {
           reference: "scalar",
           type: "date",

packages/core/utils/src/dml/entity-builder.ts

@@ -1,27 +1,34 @@
-import { DmlEntity } from "./entity"
-import { TextProperty } from "./properties/text"
-import { EnumProperty } from "./properties/enum"
-import { JSONProperty } from "./properties/json"
-import { HasOne } from "./relations/has-one"
-import { HasMany } from "./relations/has-many"
-import { NumberProperty } from "./properties/number"
-import { BooleanProperty } from "./properties/boolean"
-import { BelongsTo } from "./relations/belongs-to"
-import { DateTimeProperty } from "./properties/date-time"
-import { ManyToMany } from "./relations/many-to-many"
 import type {
   PropertyType,
   RelationshipOptions,
   RelationshipType,
 } from "@medusajs/types"
-import { NullableModifier } from "./properties/nullable"
+import { DmlEntity } from "./entity"
+import { createBigNumberProperties } from "./helpers/entity-builder/create-big-number-properties"
+import { createDefaultProperties } from "./helpers/entity-builder/create-default-properties"
+import { BigNumberProperty } from "./properties/big-number"
+import { BooleanProperty } from "./properties/boolean"
+import { DateTimeProperty } from "./properties/date-time"
+import { EnumProperty } from "./properties/enum"
 import { IdProperty } from "./properties/id"
+import { JSONProperty } from "./properties/json"
+import { NumberProperty } from "./properties/number"
+import { TextProperty } from "./properties/text"
+import { BelongsTo } from "./relations/belongs-to"
+import { HasMany } from "./relations/has-many"
+import { HasOne } from "./relations/has-one"
+import { ManyToMany } from "./relations/many-to-many"
 
 /**
  * The implicit properties added by EntityBuilder in every schema
  */
 const IMPLICIT_PROPERTIES = ["created_at", "updated_at", "deleted_at"]
 
+export type DMLSchema = Record<
+  string,
+  PropertyType<any> | RelationshipType<any>
+>
+
 /**
  * Entity builder exposes the API to create an entity and define its
  * schema using the shorthand methods.
@@ -45,22 +52,13 @@ export class EntityBuilder {
    * Define an entity or a model. The name should be unique across
    * all the entities.
    */
-  define<
+  define<Schema extends DMLSchema>(name: string, schema: Schema) {
-    Schema extends Record<string, PropertyType<any> | RelationshipType<any>>
-  >(name: string, schema: Schema) {
     this.#disallowImplicitProperties(schema)
 
-    return new DmlEntity<
+    return new DmlEntity(name, {
-      Schema & {
-        created_at: DateTimeProperty
-        updated_at: DateTimeProperty
-        deleted_at: NullableModifier<Date, DateTimeProperty>
-      }
-    >(name, {
       ...schema,
-      created_at: new DateTimeProperty(),
+      ...createBigNumberProperties(schema),
-      updated_at: new DateTimeProperty(),
+      ...createDefaultProperties(),
-      deleted_at: new DateTimeProperty().nullable(),
     })
   }
 
@@ -87,12 +85,21 @@ export class EntityBuilder {
   }
 
   /**
-   * Define a numeric/integer column
+   * Define an integer column
    */
   number() {
     return new NumberProperty()
   }
 
+  /**
+   * Define a numeric column. This property produces an additional
+   * column - raw_{{ property_name }}, which stores the configuration
+   * of bignumber (https://github.com/MikeMcl/bignumber.js)
+   */
+  bigNumber() {
+    return new BigNumberProperty()
+  }
+
   /**
    * Define a timestampz column
    */

packages/core/utils/src/dml/entity.ts

@@ -1,4 +1,3 @@
-import { BelongsTo } from "./relations/belongs-to"
 import {
   EntityCascades,
   ExtractEntityRelations,
@@ -7,15 +6,14 @@ import {
   PropertyType,
   RelationshipType,
 } from "@medusajs/types"
+import { DMLSchema } from "./entity-builder"
+import { BelongsTo } from "./relations/belongs-to"
 
 /**
  * Dml entity is a representation of a DML model with a unique
  * name, its schema and relationships.
  */
-export class DmlEntity<
+export class DmlEntity<Schema extends DMLSchema> implements IDmlEntity<Schema> {
-  Schema extends Record<string, PropertyType<any> | RelationshipType<any>>
-> implements IDmlEntity<Schema>
-{
   [IsDmlEntity]: true = true
 
   #cascades: EntityCascades<string[]> = {}

packages/core/utils/src/dml/helpers/create-mikro-orm-entity.ts

@@ -1,3 +1,13 @@
+import type {
+  EntityCascades,
+  EntityConstructor,
+  Infer,
+  KnownDataTypes,
+  PropertyMetadata,
+  PropertyType,
+  RelationshipMetadata,
+  RelationshipType,
+} from "@medusajs/types"
 import {
   BeforeCreate,
   Entity,
@@ -20,21 +30,14 @@ import {
   toCamelCase,
 } from "../../common"
 import { upperCaseFirst } from "../../common/upper-case-first"
+import {
+  MikroOrmBigNumberProperty,
+  mikroOrmSoftDeletableFilterOptions,
+} from "../../dal"
 import { DmlEntity } from "../entity"
 import { HasMany } from "../relations/has-many"
 import { HasOne } from "../relations/has-one"
 import { ManyToMany as DmlManyToMany } from "../relations/many-to-many"
-import type {
-  EntityCascades,
-  EntityConstructor,
-  Infer,
-  KnownDataTypes,
-  PropertyMetadata,
-  PropertyType,
-  RelationshipMetadata,
-  RelationshipType,
-} from "@medusajs/types"
-import { mikroOrmSoftDeletableFilterOptions } from "../../dal"
 
 /**
  * DML entity data types to PostgreSQL data types via
@@ -49,6 +52,7 @@ const COLUMN_TYPES: {
   boolean: "boolean",
   dateTime: "timestamptz",
   number: "integer",
+  bigNumber: "numeric",
   text: "text",
   json: "jsonb",
 }
@@ -66,6 +70,7 @@ const PROPERTY_TYPES: {
   boolean: "boolean",
   dateTime: "date",
   number: "number",
+  bigNumber: "number",
   text: "string",
   json: "any",
 }
@@ -175,6 +180,27 @@ export function createMikrORMEntity() {
       return
     }
 
+    /**
+     * Defining an big number property
+     * A big number property always comes with a raw_{{ fieldName }} column
+     * where the config of the bigNumber is set.
+     * The `raw_` field is generated during DML schema generation as a json
+     * dataType.
+     */
+    if (field.dataType.name === "bigNumber") {
+      MikroOrmBigNumberProperty({
+        nullable: field.nullable,
+        /**
+         * MikroORM does not ignore undefined values for default when generating
+         * the database schema SQL. Conditionally add it here to prevent undefined
+         * from being set as default value in SQL.
+         */
+        ...(isDefined(field.defaultValue) && { default: field.defaultValue }),
+      })(MikroORMEntity.prototype, field.fieldName)
+
+      return
+    }
+
     /**
      * Defining an enum property
      */
@@ -615,6 +641,7 @@ export function createMikrORMEntity() {
      */
     Object.entries(schema).forEach(([name, property]) => {
       const field = property.parse(name)
+
       if ("fieldName" in field) {
         defineProperty(MikroORMEntity, field)
         applyIndexes(MikroORMEntity, tableName, field)

packages/core/utils/src/dml/helpers/entity-builder/create-big-number-properties.ts

@@ -0,0 +1,53 @@
+import { DMLSchema } from "../../entity-builder"
+import { BigNumberProperty } from "../../properties/big-number"
+import { JSONProperty } from "../../properties/json"
+import { NullableModifier } from "../../properties/nullable"
+
+/**
+ * The goal of this type is to look at the schema and see if there are any versions
+ * of a bigNumber property (nullable or otherwise) and if any are found, we append new
+ * fields of the same property to the type. These fields will be prepended by raw_
+ * These fields will be typed to a json property (nullable or otherwise)
+ *
+ * eg: const test = model.define('test', { amount: model.bigNumber() })
+ * test.amount // valid | type = number
+ * test.raw_amount // valid | type = Record<string, any>
+ */
+type DMLSchemaWithBigNumber<T extends DMLSchema> = {
+  [K in keyof T]: T[K]
+} & {
+  [K in keyof T as T[K] extends
+    | BigNumberProperty
+    | NullableModifier<number, BigNumberProperty>
+    ? `raw_${string & K}`
+    : never]: T[K] extends NullableModifier<number, BigNumberProperty>
+    ? NullableModifier<Record<string, unknown>, JSONProperty>
+    : JSONProperty
+}
+
+export function createBigNumberProperties<Schema extends DMLSchema>(
+  schema: Schema
+): DMLSchemaWithBigNumber<Schema> {
+  const schemaWithBigNumber: DMLSchema = {}
+
+  for (const [key, property] of Object.entries(schema)) {
+    if (
+      property instanceof BigNumberProperty ||
+      property instanceof NullableModifier
+    ) {
+      const parsed = property.parse(key)
+
+      if (parsed.dataType?.name !== "bigNumber") {
+        continue
+      }
+
+      const jsonProperty = parsed.nullable
+        ? new JSONProperty().nullable()
+        : new JSONProperty()
+
+      schemaWithBigNumber[`raw_${key}`] = jsonProperty
+    }
+  }
+
+  return schemaWithBigNumber as DMLSchemaWithBigNumber<Schema>
+}

packages/core/utils/src/dml/helpers/entity-builder/create-default-properties.ts

@@ -0,0 +1,16 @@
+import { DateTimeProperty } from "../../properties/date-time"
+import { NullableModifier } from "../../properties/nullable"
+
+export type DMLSchemaDefaults = {
+  created_at: DateTimeProperty
+  updated_at: DateTimeProperty
+  deleted_at: NullableModifier<Date, DateTimeProperty>
+}
+
+export function createDefaultProperties(): DMLSchemaDefaults {
+  return {
+    created_at: new DateTimeProperty(),
+    updated_at: new DateTimeProperty(),
+    deleted_at: new DateTimeProperty().nullable(),
+  }
+}

packages/core/utils/src/dml/properties/big-number.ts

@@ -0,0 +1,11 @@
+import { BaseProperty } from "./base"
+
+/**
+ * The NumberProperty is used to define a numeric/integer
+ * property
+ */
+export class BigNumberProperty extends BaseProperty<number> {
+  protected dataType = {
+    name: "bigNumber",
+  } as const
+}

packages/core/utils/src/dml/properties/json.ts

@@ -4,7 +4,7 @@ import { BaseProperty } from "./base"
  * The JSONProperty is used to define a property that stores
  * data as a JSON string
  */
-export class JSONProperty extends BaseProperty<string> {
+export class JSONProperty extends BaseProperty<Record<string, unknown>> {
   protected dataType = {
     name: "json",
   } as const