fix(link-modules): table name (#9151)

FIXES: FRMW-2706

packages/modules/link-modules/src/utils/__tests__/compress-name.spec.ts

@@ -0,0 +1,26 @@
+import { compressName } from "../compress-name"
+
+describe("compressName", () => {
+  it("should remove consecutive duplicate names in sequence if it exceds 58 chars", () => {
+    const name =
+      "product_product_variant_id_order_order_id_long_long_long_long_name"
+    const result = compressName(name)
+    expect(result).toBe("product_variant_id_order_id_long_name33bb7b344")
+  })
+
+  it("should remove duplicate names and truncate name to append a hash", () => {
+    const name = "product_product_variant_id_order_order_id"
+    const result = compressName(name, 30)
+    expect(result).toBe("product_variant_id_ord91d0cda8")
+  })
+
+  it("handles very long names with truncation and appends hash when necessary", () => {
+    const name =
+      "CustomModuleImplementationContainingAReallyBigNameThatExceedsPosgresLimitToNameATableModule"
+    const result = compressName(name)
+    expect(result).toHaveLength(58)
+    expect(result).toBe(
+      "cust_modu_impl_cont_area_big_name_that_exce_posg_1f1cc72da"
+    )
+  })
+})

packages/modules/link-modules/src/utils/compress-name.ts

@@ -0,0 +1,38 @@
+import { camelToSnakeCase, simpleHash } from "@medusajs/utils"
+
+export function compressName(name: string, limit = 58) {
+  if (name.length <= limit) {
+    return name.toLowerCase()
+  }
+
+  const hash = simpleHash(name).toLowerCase()
+  const hashLength = hash.length
+
+  // Remove consecutive duplicates
+  const parts = name.toLowerCase().split("_")
+  const deduplicatedParts: string[] = []
+
+  for (let i = 0; i < parts.length; i++) {
+    if (i === 0 || parts[i] !== parts[i - 1]) {
+      deduplicatedParts.push(parts[i])
+    }
+  }
+
+  let result = deduplicatedParts.join("_")
+
+  // If still greater than the limit, truncate each part to 4 characters
+  if (result.length > limit) {
+    const allParts = camelToSnakeCase(name).split("_")
+    result = allParts.map((part) => part.substring(0, 4)).join("_")
+  }
+
+  name = result
+  const nameLength = name.length
+  const diff = nameLength + hashLength - limit
+
+  if (diff > 0) {
+    return name.slice(0, nameLength - diff) + hash
+  }
+
+  return (name + hash).toLowerCase()
+}

packages/modules/link-modules/src/utils/generate-entity.ts

@@ -7,6 +7,7 @@ import {
 } from "@medusajs/utils"
 
 import { EntitySchema } from "@mikro-orm/core"
+import { compressName } from "./compress-name"
 
 function getClass(...properties) {
   return class LinkModel {
@@ -62,7 +63,7 @@ export function generateEntity(
     class: getClass(
       ...fieldNames.concat("created_at", "updated_at", "deleted_at")
     ) as any,
-    tableName,
+    tableName: compressName(tableName),
     properties: {
       id: {
         type: "string",