Fix actions

.github/workflows/tests.yml

@@ -40,16 +40,20 @@ jobs:
 
     env:
       DIALECTOR: postgres
-      DATABASE_URL: postgres://gorm:gorm@localhost:5432/sharding-test
-      DATABASE_READ_URL: postgres://gorm:gorm@localhost:5432/sharding-read-test
-      DATABASE_WRITE_URL: postgres://gorm:gorm@localhost:5432/sharding-write-test
+      DB_URL: postgres://gorm:gorm@localhost:5432/sharding-test
+      DB_NOID_URL: postgres://gorm:gorm@localhost:5432/sharding-noid-test
+      DB_READ_URL: postgres://gorm:gorm@localhost:5432/sharding-read-test
+      DB_WRITE_URL: postgres://gorm:gorm@localhost:5432/sharding-write-test
     steps:
       - name: Set up Go
         uses: actions/setup-go@v4
         with:
           go-version: "1.20"
         id: go
 
+      - name: Create No ID Database
+        run: PGPASSWORD=gorm psql -h localhost -U gorm -d sharding-test -c 'CREATE DATABASE "sharding-noid-test";'
+
       - name: Create Read Database
         run: PGPASSWORD=gorm psql -h localhost -U gorm -d sharding-test -c 'CREATE DATABASE "sharding-read-test";'
 
@@ -93,23 +97,25 @@ jobs:
 
     env:
       DIALECTOR: mysql
-      DATABASE_URL: gorm:gorm@tcp(127.0.0.1:3306)/sharding-test?charset=utf8mb4&parseTime=True&loc=Local
-      DATABASE_READ_URL: root:gorm@tcp(127.0.0.1:3306)/sharding-read-test?charset=utf8mb4&parseTime=True&loc=Local
-      DATABASE_WRITE_URL: root:gorm@tcp(127.0.0.1:3306)/sharding-write-test?charset=utf8mb4&parseTime=True&loc=Local
+      DB_URL: gorm:gorm@tcp(127.0.0.1:3306)/sharding-test?charset=utf8mb4&parseTime=True&loc=Local
+      DB_NOID_URL: gorm:gorm@tcp(127.0.0.1:3306)/sharding-noid-test?charset=utf8mb4&parseTime=True&loc=Local
+      DB_READ_URL: root:gorm@tcp(127.0.0.1:3306)/sharding-read-test?charset=utf8mb4&parseTime=True&loc=Local
+      DB_WRITE_URL: root:gorm@tcp(127.0.0.1:3306)/sharding-write-test?charset=utf8mb4&parseTime=True&loc=Local
     steps:
       - name: Set up Go
         uses: actions/setup-go@v4
         with:
           go-version: "1.20"
         id: go
 
+      - name: Create No ID Database
+        run: mysqladmin -h 127.0.0.1 -uroot -pgorm create sharding-noid-test
+
       - name: Create Read Database
         run: mysqladmin -h 127.0.0.1 -uroot -pgorm create sharding-read-test
-        #run: mysql -e 'CREATE DATABASE sharding-read-test' -ugorm -pgorm
 
       - name: Create Write Database
         run: mysqladmin -h 127.0.0.1 -uroot -pgorm create sharding-write-test
-        #run: mysql -e 'CREATE DATABASE sharding-write-test' -ugorm -pgorm
 
       - name: Check out code into the Go module directory
         uses: actions/checkout@v3
@@ -148,23 +154,25 @@ jobs:
 
     env:
       DIALECTOR: mariadb
-      DATABASE_URL: gorm:gorm@tcp(127.0.0.1:3306)/sharding-test?charset=utf8mb4&parseTime=True&loc=Local
-      DATABASE_READ_URL: root:gorm@tcp(127.0.0.1:3306)/sharding-read-test?charset=utf8mb4&parseTime=True&loc=Local
-      DATABASE_WRITE_URL: root:gorm@tcp(127.0.0.1:3306)/sharding-write-test?charset=utf8mb4&parseTime=True&loc=Local
+      DB_URL: gorm:gorm@tcp(127.0.0.1:3306)/sharding-test?charset=utf8mb4&parseTime=True&loc=Local
+      DB_NOID_URL: root:gorm@tcp(127.0.0.1:3306)/sharding-noid-test?charset=utf8mb4&parseTime=True&loc=Local
+      DB_READ_URL: root:gorm@tcp(127.0.0.1:3306)/sharding-read-test?charset=utf8mb4&parseTime=True&loc=Local
+      DB_WRITE_URL: root:gorm@tcp(127.0.0.1:3306)/sharding-write-test?charset=utf8mb4&parseTime=True&loc=Local
     steps:
       - name: Set up Go
         uses: actions/setup-go@v4
         with:
           go-version: "1.20"
         id: go
 
+      - name: Create No ID Database
+        run: mysqladmin -h 127.0.0.1 -uroot -pgorm create sharding-noid-test
+
       - name: Create Read Database
         run: mysqladmin -h 127.0.0.1 -uroot -pgorm create sharding-read-test
-        #run: mysql -e 'CREATE DATABASE sharding-read-test' -ugorm -pgorm
 
       - name: Create Write Database
         run: mysqladmin -h 127.0.0.1 -uroot -pgorm create sharding-write-test
-        #run: mysql -e 'CREATE DATABASE sharding-write-test' -ugorm -pgorm
 
       - name: Check out code into the Go module directory
         uses: actions/checkout@v3

README.md

@@ -120,6 +120,10 @@ db.Use(sharding.Register(sharding.Config{
 }, "orders")
 ```
 
+### No primary key
+
+If your table doesn't have a primary key, or has a primary key that isn't called `id`, anyway, you don't want to auto-fill the `id` field, then you can set `PrimaryKeyGenerator` to `PKCustom` and have `PrimaryKeyGeneratorFn` return `0`.
+
 ## Combining with dbresolver
 
 > 🚨 NOTE: Use dbresolver first.