fix: csv-importer (#10)

* update item fields to support import_ref

* add additional rows to CSV importer

* add CSV import documentation

* update readme

* update readme

* fix failed test

backend/ent/schema/item.go

@@ -34,6 +34,10 @@ func (Item) Indexes() []ent.Index {
 // Fields of the Item.
 func (Item) Fields() []ent.Field {
 	return []ent.Field{
+		field.String("import_ref").
+			Optional().
+			MaxLen(100).
+			Immutable(),
 		field.String("notes").
 			MaxLen(1000).
 			Optional(),
@@ -102,7 +106,10 @@ func (Item) Edges() []ent.Edge {
 				OnDelete: entsql.Cascade,
 			}),
 		edge.From("label", Label.Type).
-			Ref("items"),
+			Ref("items").
+			Annotations(entsql.Annotation{
+				OnDelete: entsql.Cascade,
+			}),
 		edge.To("attachments", Attachment.Type).
 			Annotations(entsql.Annotation{
 				OnDelete: entsql.Cascade,

backend/ent/schema/label.go

@@ -2,6 +2,7 @@ package schema
 
 import (
 	"entgo.io/ent"
+	"entgo.io/ent/dialect/entsql"
 	"entgo.io/ent/schema/edge"
 	"entgo.io/ent/schema/field"
 	"github.com/hay-kot/content/backend/ent/schema/mixins"
@@ -35,6 +36,9 @@ func (Label) Edges() []ent.Edge {
 			Ref("labels").
 			Required().
 			Unique(),
-		edge.To("items", Item.Type),
+		edge.To("items", Item.Type).
+			Annotations(entsql.Annotation{
+				OnDelete: entsql.Cascade,
+			}),
 	}
 }

backend/ent/schema/location.go

@@ -2,6 +2,7 @@ package schema
 
 import (
 	"entgo.io/ent"
+	"entgo.io/ent/dialect/entsql"
 	"entgo.io/ent/schema/edge"
 	"github.com/hay-kot/content/backend/ent/schema/mixins"
 )
@@ -30,6 +31,9 @@ func (Location) Edges() []ent.Edge {
 			Ref("locations").
 			Unique().
 			Required(),
-		edge.To("items", Item.Type),
+		edge.To("items", Item.Type).
+			Annotations(entsql.Annotation{
+				OnDelete: entsql.Cascade,
+			}),
 	}
 }