Add initial implementation of grants

internal/dis/component/auth/policy/policy.go

@@ -0,0 +1,27 @@
+package policy
+
+import (
+	"context"
+
+	"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
+	"github.com/FAU-CDI/wisski-distillery/internal/dis/component/sql"
+	"github.com/FAU-CDI/wisski-distillery/internal/models"
+	"gorm.io/gorm"
+)
+
+type Policy struct {
+	component.Base
+
+	Dependencies struct {
+		SQL *sql.SQL
+	}
+}
+
+var (
+	_ component.Provisionable  = (*Policy)(nil)
+	_ component.UserDeleteHook = (*Policy)(nil)
+)
+
+func (pol *Policy) table(ctx context.Context) (*gorm.DB, error) {
+	return pol.Dependencies.SQL.QueryTable(ctx, true, models.GrantTable)
+}