feat: add support for float properties

.changeset/popular-baboons-allow.md

@@ -0,0 +1,6 @@
+---
+"@medusajs/types": patch
+"@medusajs/utils": patch
+---
+
+feat: add support for float properties

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

@@ -41,6 +41,7 @@ export type KnownDataTypes =
   | "enum"
   | "number"
   | "bigNumber"
+  | "float"
   | "serial"
   | "dateTime"
   | "array"

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

@@ -1450,6 +1450,94 @@ describe("Entity builder", () => {
         },
       })
     })
+
+    test("define a float property", () => {
+      const tax = model.define("tax", {
+        id: model.number(),
+        rate: model.float(),
+      })
+
+      expect(tax.name).toEqual("Tax")
+      expect(tax.parse().tableName).toEqual("tax")
+
+      const Tax = toMikroORMEntity(tax)
+      expectTypeOf(new Tax()).toMatchTypeOf<{
+        id: number
+        rate: number
+      }>()
+
+      const metaData = MetadataStorage.getMetadataFromDecorator(Tax)
+      expect(metaData.className).toEqual("Tax")
+      expect(metaData.path).toEqual("Tax")
+
+      expect(metaData.filters).toEqual({
+        softDeletable: {
+          name: "softDeletable",
+          cond: expect.any(Function),
+          default: true,
+          args: false,
+        },
+      })
+
+      expect(metaData.properties).toEqual({
+        id: {
+          reference: "scalar",
+          type: "number",
+          columnType: "integer",
+          name: "id",
+          fieldName: "id",
+          nullable: false,
+          getter: false,
+          setter: false,
+        },
+        rate: {
+          reference: "scalar",
+          type: "number",
+          columnType: "real",
+          name: "rate",
+          fieldName: "rate",
+          serializer: Number,
+          nullable: false,
+          getter: false,
+          setter: false,
+        },
+        created_at: {
+          reference: "scalar",
+          type: "date",
+          columnType: "timestamptz",
+          name: "created_at",
+          fieldName: "created_at",
+          defaultRaw: "now()",
+          onCreate: expect.any(Function),
+          nullable: false,
+          getter: false,
+          setter: false,
+        },
+        updated_at: {
+          reference: "scalar",
+          type: "date",
+          columnType: "timestamptz",
+          name: "updated_at",
+          fieldName: "updated_at",
+          defaultRaw: "now()",
+          onCreate: expect.any(Function),
+          onUpdate: expect.any(Function),
+          nullable: false,
+          getter: false,
+          setter: false,
+        },
+        deleted_at: {
+          reference: "scalar",
+          type: "date",
+          columnType: "timestamptz",
+          name: "deleted_at",
+          fieldName: "deleted_at",
+          nullable: true,
+          getter: false,
+          setter: false,
+        },
+      })
+    })
   })
 
   describe("Entity builder | relationships", () => {

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

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

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

@@ -27,6 +27,7 @@ import { HasMany } from "./relations/has-many"
 import { HasOne } from "./relations/has-one"
 import { HasOneWithForeignKey } from "./relations/has-one-fk"
 import { ManyToMany } from "./relations/many-to-many"
+import { FloatProperty } from "./properties"
 
 /**
  * The implicit properties added by EntityBuilder in every schema
@@ -249,6 +250,26 @@ export class EntityBuilder {
     return new BigNumberProperty()
   }
 
+  /**
+   * This method defines a float property that allows for
+   * values with decimal places
+   *
+   * @example
+   * import { model } from "@medusajs/framework/utils"
+   *
+   * const MyCustom = model.define("tax", {
+   *   tax_rate: model.float(),
+   *   // ...
+   * })
+   *
+   * export default MyCustom
+   *
+   * @customNamespace Property Types
+   */
+  float() {
+    return new FloatProperty()
+  }
+
   /**
    * This method defines an autoincrement property.
    *

packages/core/utils/src/dml/helpers/entity-builder/define-property.ts

@@ -33,6 +33,7 @@ const COLUMN_TYPES: {
   dateTime: "timestamptz",
   number: "integer",
   bigNumber: "numeric",
+  float: "real",
   serial: "number",
   text: "text",
   json: "jsonb",
@@ -53,6 +54,7 @@ const PROPERTY_TYPES: {
   dateTime: "date",
   number: "number",
   bigNumber: "number",
+  float: "number",
   serial: "number",
   text: "string",
   json: "any",
@@ -277,6 +279,31 @@ export function defineProperty(
     return
   }
 
+  /**
+   * Handling serial property separately to set the column type
+   */
+  if (field.dataType.name === "float") {
+    Property({
+      columnType: "real",
+      type: "number",
+      nullable: field.nullable,
+      fieldName: field.fieldName,
+      /**
+       * Applying number serializer to convert value back to a
+       * JavaScript number
+       */
+      serializer: Number,
+      /**
+       * 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
+  }
+
   /**
    * Define rest of properties
    */

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

@@ -33,6 +33,7 @@ describe("EntityBuilder", () => {
       id: model.id().primaryKey(),
       username: model.text(),
       points: model.number().default(0).nullable(),
+      tax_rate: model.float().default(0).nullable(),
     })
 
     ;[User] = toMikroOrmEntities([user])
@@ -86,6 +87,7 @@ describe("EntityBuilder", () => {
       id: user1.id,
       username: "User 1",
       points: 0,
+      tax_rate: 0,
       created_at: expect.any(Date),
       updated_at: expect.any(Date),
       deleted_at: null,
@@ -112,6 +114,7 @@ describe("EntityBuilder", () => {
       id: user1.id,
       username: "User 1",
       points: null,
+      tax_rate: 0,
       created_at: expect.any(Date),
       updated_at: expect.any(Date),
       deleted_at: null,
@@ -139,6 +142,34 @@ describe("EntityBuilder", () => {
       id: user1.id,
       username: "User 1",
       points: null,
+      tax_rate: 0,
+      created_at: expect.any(Date),
+      updated_at: expect.any(Date),
+      deleted_at: null,
+    })
+  })
+
+  it("set the tax rate as a float value", async () => {
+    let manager = orm.em.fork()
+
+    const user1 = manager.create(User, {
+      username: "User 1",
+      tax_rate: 1.2122,
+    })
+    expect(user1.tax_rate).toEqual(1.2122)
+
+    await manager.persistAndFlush([user1])
+    manager = orm.em.fork()
+
+    const user = await manager.findOne(User, {
+      id: user1.id,
+    })
+
+    expect(await mikroOrmSerializer(user)).toEqual({
+      id: user1.id,
+      username: "User 1",
+      points: 0,
+      tax_rate: 1.2122,
       created_at: expect.any(Date),
       updated_at: expect.any(Date),
       deleted_at: null,

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

@@ -0,0 +1,15 @@
+import { BaseProperty } from "./base"
+
+/**
+ * The FloatProperty is used to define values with decimal
+ * places.
+ */
+export class FloatProperty extends BaseProperty<number> {
+  protected dataType = {
+    name: "float",
+  } as const
+
+  static isFloatProperty(obj: any): obj is FloatProperty {
+    return obj?.dataType?.name === "float"
+  }
+}

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

@@ -9,5 +9,6 @@ export * from "./id"
 export * from "./json"
 export * from "./nullable"
 export * from "./number"
+export * from "./float"
 export * from "./primary-key"
 export * from "./text"