feat: add files creation in repo

repositories/files_repository.go

@@ -0,0 +1,29 @@
+package repositories
+
+import (
+	"context"
+	Db "micrach/db"
+)
+
+type FilesRepository struct{}
+
+var Files FilesRepository
+
+func (r *FilesRepository) Create(f File) error {
+	conn, err := Db.Pool.Acquire(context.TODO())
+	if err != nil {
+		return err
+	}
+	defer conn.Release()
+
+	sql := `
+		INSERT INTO files (post_id, name, ext, size)
+		VALUES ($1, $2, $3, $4)
+	`
+
+	conn.QueryRow(
+		context.TODO(), sql, f.PostID, f.Name, f.Ext, f.Size,
+	)
+
+	return nil
+}