support faker

database/seeders/migration.go

@@ -0,0 +1,44 @@
+package seeders
+
+import (
+	"atom/container"
+	"atom/contracts"
+	"atom/database/models"
+	"log"
+
+	"github.com/brianvoe/gofakeit/v6"
+	"go.uber.org/dig"
+	"gorm.io/gorm"
+)
+
+func init() {
+	if err := container.Container.Provide(NewMigrationSeeder, dig.Group("seeders")); err != nil {
+		log.Fatal(err)
+	}
+}
+
+type MigrationSeeder struct {
+}
+
+func NewMigrationSeeder() contracts.Seeder {
+	return &MigrationSeeder{}
+}
+
+func (s *MigrationSeeder) Run(faker *gofakeit.Faker, db *gorm.DB) {
+	times := 10
+	for i := 0; i < times; i++ {
+		data := s.Generate(faker, i)
+		if i == 0 {
+			stmt := &gorm.Statement{DB: db}
+			_ = stmt.Parse(&data)
+			log.Printf("seeding %s for %d times", stmt.Schema.Table, times)
+		}
+		db.Create(&data)
+	}
+}
+
+func (s *MigrationSeeder) Generate(faker *gofakeit.Faker, idx int) models.Migration {
+	return models.Migration{
+		// fill model fields
+	}
+}

database/seeders/placeholder.go

@@ -5,6 +5,7 @@ import (
 	"atom/contracts"
 	"log"
 
+	"github.com/brianvoe/gofakeit/v6"
 	"go.uber.org/dig"
 	"gorm.io/gorm"
 )
@@ -24,12 +25,16 @@ func NewPlaceholderSeeder() contracts.Seeder {
 
 type Placeholder struct {
 	gorm.Model
+
+	Username string
 }
 
-func (s *PlaceholderSeeder) Run(db *gorm.DB) {
+func (s *PlaceholderSeeder) Run(faker *gofakeit.Faker, db *gorm.DB) {
 
 }
 
-func (s *PlaceholderSeeder) Generate(idx int) Placeholder {
-	return Placeholder{}
+func (s *PlaceholderSeeder) Generate(faker *gofakeit.Faker, idx int) Placeholder {
+	return Placeholder{
+		Username: faker.Name(),
+	}
 }