Bugs Fixed

1. pkg/models/models.go:184 - Fixed typo in ForeignKeyConstraint constant from "foreign_Key" to "foreign_key"
  2. pkg/readers/drawdb/reader.go:62-68 - Fixed ReadSchema() to properly detect schema name from tables instead of hardcoding "default"
  3. pkg/writers/dbml/writer.go:128 - Changed primary key attribute from "primary key" to DBML standard "pk"
  4. pkg/writers/dbml/writer.go:208-221 - Fixed foreign key reference format to use "table.column" syntax for single columns instead of "table.(column)"

  Test Results

  All reader and writer tests are now passing:

  Readers:
  - DBML: 74.4% coverage (2 tests skipped due to missing parser features for Ref statements)
  - DCTX: 77.6% coverage
  - DrawDB: 83.6% coverage
  - JSON: 82.1% coverage
  - YAML: 82.1% coverage

  Writers:
  - Bun: 68.5% coverage
  - DBML: 91.5% coverage
  - DCTX: 100.0% coverage
  - DrawDB: 83.8% coverage
  - GORM: 69.2% coverage
  - JSON: 82.4% coverage
  - YAML: 82.4% coverage

tests/assets/json/database.json

@@ -0,0 +1,118 @@
+{
+  "name": "test_db",
+  "description": "Test database for JSON reader",
+  "database_type": "pgsql",
+  "schemas": [
+    {
+      "name": "public",
+      "tables": [
+        {
+          "name": "users",
+          "schema": "public",
+          "description": "User accounts table",
+          "columns": {
+            "id": {
+              "name": "id",
+              "table": "users",
+              "schema": "public",
+              "type": "bigint",
+              "not_null": true,
+              "auto_increment": true,
+              "is_primary_key": true
+            },
+            "email": {
+              "name": "email",
+              "table": "users",
+              "schema": "public",
+              "type": "varchar",
+              "length": 255,
+              "not_null": true,
+              "comment": "User email address"
+            },
+            "name": {
+              "name": "name",
+              "table": "users",
+              "schema": "public",
+              "type": "varchar",
+              "length": 100,
+              "not_null": false
+            },
+            "created_at": {
+              "name": "created_at",
+              "table": "users",
+              "schema": "public",
+              "type": "timestamp",
+              "not_null": true,
+              "default": "CURRENT_TIMESTAMP"
+            }
+          },
+          "indexes": {
+            "idx_users_email": {
+              "name": "idx_users_email",
+              "table": "users",
+              "schema": "public",
+              "columns": ["email"],
+              "unique": true,
+              "type": "btree"
+            }
+          },
+          "constraints": {},
+          "relationships": {}
+        },
+        {
+          "name": "posts",
+          "schema": "public",
+          "columns": {
+            "id": {
+              "name": "id",
+              "table": "posts",
+              "schema": "public",
+              "type": "bigint",
+              "not_null": true,
+              "auto_increment": true,
+              "is_primary_key": true
+            },
+            "user_id": {
+              "name": "user_id",
+              "table": "posts",
+              "schema": "public",
+              "type": "bigint",
+              "not_null": true
+            },
+            "title": {
+              "name": "title",
+              "table": "posts",
+              "schema": "public",
+              "type": "varchar",
+              "length": 200,
+              "not_null": true
+            },
+            "content": {
+              "name": "content",
+              "table": "posts",
+              "schema": "public",
+              "type": "text",
+              "not_null": false
+            }
+          },
+          "indexes": {},
+          "constraints": {
+            "fk_posts_user": {
+              "name": "fk_posts_user",
+              "type": "foreign_key",
+              "table": "posts",
+              "schema": "public",
+              "columns": ["user_id"],
+              "referenced_table": "users",
+              "referenced_schema": "public",
+              "referenced_columns": ["id"],
+              "on_delete": "CASCADE",
+              "on_update": "CASCADE"
+            }
+          },
+          "relationships": {}
+        }
+      ]
+    }
+  ]
+}

tests/assets/json/schema.json

@@ -0,0 +1,31 @@
+{
+  "name": "public",
+  "description": "Public schema",
+  "tables": [
+    {
+      "name": "users",
+      "schema": "public",
+      "columns": {
+        "id": {
+          "name": "id",
+          "table": "users",
+          "schema": "public",
+          "type": "bigint",
+          "not_null": true,
+          "is_primary_key": true
+        },
+        "username": {
+          "name": "username",
+          "table": "users",
+          "schema": "public",
+          "type": "varchar",
+          "length": 50,
+          "not_null": true
+        }
+      },
+      "indexes": {},
+      "constraints": {},
+      "relationships": {}
+    }
+  ]
+}

tests/assets/json/table.json

@@ -0,0 +1,27 @@
+{
+  "name": "users",
+  "schema": "public",
+  "description": "Users table",
+  "columns": {
+    "id": {
+      "name": "id",
+      "table": "users",
+      "schema": "public",
+      "type": "bigint",
+      "not_null": true,
+      "auto_increment": true,
+      "is_primary_key": true
+    },
+    "email": {
+      "name": "email",
+      "table": "users",
+      "schema": "public",
+      "type": "varchar",
+      "length": 255,
+      "not_null": true
+    }
+  },
+  "indexes": {},
+  "constraints": {},
+  "relationships": {}
+}