Studio child count filter and sort

graphql/schema/types/filters.graphql

@@ -331,6 +331,8 @@ input StudioFilterType {
   url: StringCriterionInput
   "Filter by studio aliases"
   aliases: StringCriterionInput
+  "Filter by subsidiary studio count"
+  child_count: IntCriterionInput
   "Filter by autotag ignore value"
   ignore_auto_tag: Boolean
   "Filter by creation time"

pkg/models/studio.go

@@ -26,6 +26,8 @@ type StudioFilterType struct {
 	URL *StringCriterionInput `json:"url"`
 	// Filter by studio aliases
 	Aliases *StringCriterionInput `json:"aliases"`
+	// Filter by subsidiary studio count
+	ChildCount *IntCriterionInput `json:"child_count"`
 	// Filter by autotag ignore value
 	IgnoreAutoTag *bool `json:"ignore_auto_tag"`
 	// Filter by created at

pkg/sqlite/sql.go

@@ -107,7 +107,7 @@ func getRandomSort(tableName string, direction string, seed uint64) string {
 }
 
 func getCountSort(primaryTable, joinTable, primaryFK, direction string) string {
-	return fmt.Sprintf(" ORDER BY (SELECT COUNT(*) FROM %s WHERE %s = %s.id) %s", joinTable, primaryFK, primaryTable, getSortDirection(direction))
+	return fmt.Sprintf(" ORDER BY (SELECT COUNT(*) FROM %s AS sort WHERE sort.%s = %s.id) %s", joinTable, primaryFK, primaryTable, getSortDirection(direction))
 }
 
 func getMultiSumSort(sum string, primaryTable, foreignTable1, joinTable1, foreignTable2, joinTable2, primaryFK, foreignFK1, foreignFK2, direction string) string {

pkg/sqlite/studio.go

@@ -517,6 +517,7 @@ func (qb *StudioStore) makeFilter(ctx context.Context, studioFilter *models.Stud
 	query.handleCriterion(ctx, studioGalleryCountCriterionHandler(qb, studioFilter.GalleryCount))
 	query.handleCriterion(ctx, studioParentCriterionHandler(qb, studioFilter.Parents))
 	query.handleCriterion(ctx, studioAliasCriterionHandler(qb, studioFilter.Aliases))
+	query.handleCriterion(ctx, studioChildCountCriterionHandler(qb, studioFilter.ChildCount))
 	query.handleCriterion(ctx, timestampCriterionHandler(studioFilter.CreatedAt, studioTable+".created_at"))
 	query.handleCriterion(ctx, timestampCriterionHandler(studioFilter.UpdatedAt, studioTable+".updated_at"))
 
@@ -649,6 +650,17 @@ func studioAliasCriterionHandler(qb *StudioStore, alias *models.StringCriterionI
 	return h.handler(alias)
 }
 
+func studioChildCountCriterionHandler(qb *StudioStore, childCount *models.IntCriterionInput) criterionHandlerFunc {
+	return func(ctx context.Context, f *filterBuilder) {
+		if childCount != nil {
+			f.addLeftJoin("studios", "children_count", "children_count.parent_id = studios.id")
+			clause, args := getIntCriterionWhereClause("count(distinct children_count.id)", *childCount)
+
+			f.addHaving(clause, args...)
+		}
+	}
+}
+
 func (qb *StudioStore) getStudioSort(findFilter *models.FindFilterType) string {
 	var sort string
 	var direction string
@@ -668,6 +680,8 @@ func (qb *StudioStore) getStudioSort(findFilter *models.FindFilterType) string {
 		sortQuery += getCountSort(studioTable, imageTable, studioIDColumn, direction)
 	case "galleries_count":
 		sortQuery += getCountSort(studioTable, galleryTable, studioIDColumn, direction)
+	case "child_count":
+		sortQuery += getCountSort(studioTable, studioTable, studioParentIDColumn, direction)
 	default:
 		sortQuery += getSort(sort, direction, "studios")
 	}

ui/v2.5/src/locales/en-GB.json

@@ -1363,6 +1363,7 @@
   "sub_tag_count": "Sub-Tag Count",
   "sub_tag_of": "Sub-tag of {parent}",
   "sub_tags": "Sub-Tags",
+  "subsidiary_studio_count": "Subsidiary Studio Count",
   "subsidiary_studios": "Subsidiary Studios",
   "synopsis": "Synopsis",
   "tag": "Tag",

ui/v2.5/src/models/list-filter/studios.ts

@@ -28,6 +28,10 @@ const sortByOptions = ["name", "random", "rating"]
       messageID: "scene_count",
       value: "scenes_count",
     },
+    {
+      messageID: "subsidiary_studio_count",
+      value: "child_count",
+    },
   ]);
 
 const displayModeOptions = [DisplayMode.Grid, DisplayMode.Tagger];
@@ -44,6 +48,10 @@ const criterionOptions = [
   createStringCriterionOption("url"),
   StashIDCriterionOption,
   createStringCriterionOption("aliases"),
+  createMandatoryNumberCriterionOption(
+    "child_count",
+    "subsidiary_studio_count"
+  ),
   createMandatoryTimestampCriterionOption("created_at"),
   createMandatoryTimestampCriterionOption("updated_at"),
 ];