Init V4 community edition (#2265)

* Init V4 community edition

* Init V4 community edition

ent/schema/policy.go

@@ -0,0 +1,59 @@
+package schema
+
+import (
+	"entgo.io/ent"
+	"entgo.io/ent/schema/edge"
+	"entgo.io/ent/schema/field"
+	"github.com/cloudreve/Cloudreve/v4/inventory/types"
+)
+
+// StoragePolicy holds the schema definition for the storage policy entity.
+type StoragePolicy struct {
+	ent.Schema
+}
+
+func (StoragePolicy) Fields() []ent.Field {
+	return []ent.Field{
+		field.String("name"),
+		field.String("type"),
+		field.String("server").
+			Optional(),
+		field.String("bucket_name").
+			Optional(),
+		field.Bool("is_private").
+			Optional(),
+		field.Text("access_key").
+			Optional(),
+		field.Text("secret_key").
+			Optional(),
+		field.Int64("max_size").
+			Optional(),
+		field.String("dir_name_rule").
+			Optional(),
+		field.String("file_name_rule").
+			Optional(),
+		field.JSON("settings", &types.PolicySetting{}).
+			Default(&types.PolicySetting{}).
+			Optional(),
+		field.Int("node_id").Optional(),
+	}
+}
+
+func (StoragePolicy) Mixin() []ent.Mixin {
+	return []ent.Mixin{
+		CommonMixin{},
+	}
+}
+
+func (StoragePolicy) Edges() []ent.Edge {
+	return []ent.Edge{
+		edge.To("users", User.Type),
+		edge.To("groups", Group.Type),
+		edge.To("files", File.Type),
+		edge.To("entities", Entity.Type),
+		edge.From("node", Node.Type).
+			Ref("storage_policy").
+			Field("node_id").
+			Unique(),
+	}
+}