Parent studios (#595)

* Refactor getMultiCriterionClause
Co-authored-by: Anon247 <61889302+Anon247@users.noreply.github.com>

graphql/documents/data/studio.graphql

@@ -3,6 +3,22 @@ fragment StudioData on Studio {
   checksum
   name
   url
+  parent_studio {
+    id
+    checksum
+    name
+    url
+    image_path
+    scene_count
+  }
+  child_studios {
+    id
+    checksum
+    name
+    url
+    image_path
+    scene_count
+  }
   image_path
   scene_count
 }

graphql/documents/mutations/studio.graphql

@@ -1,9 +1,10 @@
 mutation StudioCreate(
   $name: String!,
   $url: String,
-  $image: String) {
+  $image: String
+  $parent_id: ID) {
 
-  studioCreate(input: { name: $name, url: $url, image: $image }) {
+  studioCreate(input: { name: $name, url: $url, image: $image, parent_id: $parent_id }) {
     ...StudioData
   }
 }
@@ -12,9 +13,10 @@ mutation StudioUpdate(
   $id: ID!
   $name: String,
   $url: String,
-  $image: String) {
+  $image: String
+  $parent_id: ID) {
 
-  studioUpdate(input: { id: $id, name: $name, url: $url, image: $image }) {
+  studioUpdate(input: { id: $id, name: $name, url: $url, image: $image, parent_id: $parent_id }) {
     ...StudioData
   }
 }

graphql/documents/queries/studio.graphql

@@ -1,5 +1,5 @@
-query FindStudios($filter: FindFilterType) {
-  findStudios(filter: $filter) {
+query FindStudios($filter: FindFilterType, $studio_filter: StudioFilterType ) {
+  findStudios(filter: $filter, studio_filter: $studio_filter) {
     count
     studios {
       ...StudioData

graphql/schema/schema.graphql

@@ -20,7 +20,7 @@ type Query {
   """Find a studio by ID"""
   findStudio(id: ID!): Studio
   """A function which queries Studio objects"""
-  findStudios(filter: FindFilterType): FindStudiosResultType!
+  findStudios(studio_filter: StudioFilterType, filter: FindFilterType): FindStudiosResultType!
 
    """Find a movie by ID"""
   findMovie(id: ID!): Movie

graphql/schema/types/filters.graphql

@@ -91,6 +91,11 @@ input MovieFilterType {
   studios: MultiCriterionInput
 }
 
+input StudioFilterType {
+  """Filter to only include studios with this parent studio"""
+  parents: MultiCriterionInput
+}
+
 enum CriterionModifier {
   """="""
   EQUALS,

graphql/schema/types/studio.graphql

@@ -3,7 +3,8 @@ type Studio {
   checksum: String!
   name: String!
   url: String
-
+  parent_studio: Studio
+  child_studios: [Studio!]!
   image_path: String # Resolver
   scene_count: Int # Resolver
 }
@@ -11,6 +12,7 @@ type Studio {
 input StudioCreateInput {
   name: String!
   url: String
+  parent_id: ID
   """This should be base64 encoded"""
   image: String
 }
@@ -19,6 +21,7 @@ input StudioUpdateInput {
   id: ID!
   name: String
   url: String
+  parent_id: ID,
   """This should be base64 encoded"""
   image: String
 }

pkg/api/resolver_model_studio.go

@@ -2,6 +2,7 @@ package api
 
 import (
 	"context"
+
 	"github.com/stashapp/stash/pkg/api/urlbuilders"
 	"github.com/stashapp/stash/pkg/models"
 )
@@ -31,3 +32,17 @@ func (r *studioResolver) SceneCount(ctx context.Context, obj *models.Studio) (*i
 	res, err := qb.CountByStudioID(obj.ID)
 	return &res, err
 }
+
+func (r *studioResolver) ParentStudio(ctx context.Context, obj *models.Studio) (*models.Studio, error) {
+	if !obj.ParentID.Valid {
+		return nil, nil
+	}
+
+	qb := models.NewStudioQueryBuilder()
+	return qb.Find(int(obj.ParentID.Int64), nil)
+}
+
+func (r *studioResolver) ChildStudios(ctx context.Context, obj *models.Studio) ([]*models.Studio, error) {
+	qb := models.NewStudioQueryBuilder()
+	return qb.FindChildren(obj.ID, nil)
+}

pkg/api/resolver_mutation_studio.go

@@ -7,6 +7,7 @@ import (
 	"time"
 
 	"github.com/stashapp/stash/pkg/database"
+	"github.com/stashapp/stash/pkg/manager"
 	"github.com/stashapp/stash/pkg/models"
 	"github.com/stashapp/stash/pkg/utils"
 )
@@ -40,6 +41,10 @@ func (r *mutationResolver) StudioCreate(ctx context.Context, input models.Studio
 	if input.URL != nil {
 		newStudio.URL = sql.NullString{String: *input.URL, Valid: true}
 	}
+	if input.ParentID != nil {
+		parentID, _ := strconv.ParseInt(*input.ParentID, 10, 64)
+		newStudio.ParentID = sql.NullInt64{Int64: parentID, Valid: true}
+	}
 
 	// Start the transaction and save the studio
 	tx := database.DB.MustBeginTx(ctx, nil)
@@ -61,33 +66,48 @@ func (r *mutationResolver) StudioCreate(ctx context.Context, input models.Studio
 func (r *mutationResolver) StudioUpdate(ctx context.Context, input models.StudioUpdateInput) (*models.Studio, error) {
 	// Populate studio from the input
 	studioID, _ := strconv.Atoi(input.ID)
-	updatedStudio := models.Studio{
+
+	updatedStudio := models.StudioPartial{
 		ID:        studioID,
-		UpdatedAt: models.SQLiteTimestamp{Timestamp: time.Now()},
+		UpdatedAt: &models.SQLiteTimestamp{Timestamp: time.Now()},
 	}
 	if input.Image != nil {
 		_, imageData, err := utils.ProcessBase64Image(*input.Image)
 		if err != nil {
 			return nil, err
 		}
-		updatedStudio.Image = imageData
+		updatedStudio.Image = &imageData
 	}
 	if input.Name != nil {
 		// generate checksum from studio name rather than image
 		checksum := utils.MD5FromString(*input.Name)
-		updatedStudio.Name = sql.NullString{String: *input.Name, Valid: true}
-		updatedStudio.Checksum = checksum
+		updatedStudio.Name = &sql.NullString{String: *input.Name, Valid: true}
+		updatedStudio.Checksum = &checksum
 	}
 	if input.URL != nil {
-		updatedStudio.URL = sql.NullString{String: *input.URL, Valid: true}
+		updatedStudio.URL = &sql.NullString{String: *input.URL, Valid: true}
+	}
+
+	if input.ParentID != nil {
+		parentID, _ := strconv.ParseInt(*input.ParentID, 10, 64)
+		updatedStudio.ParentID = &sql.NullInt64{Int64: parentID, Valid: true}
+	} else {
+		// parent studio must be nullable
+		updatedStudio.ParentID = &sql.NullInt64{Valid: false}
 	}
 
 	// Start the transaction and save the studio
 	tx := database.DB.MustBeginTx(ctx, nil)
 	qb := models.NewStudioQueryBuilder()
+
+	if err := manager.ValidateModifyStudio(updatedStudio, tx); err != nil {
+		tx.Rollback()
+		return nil, err
+	}
+
 	studio, err := qb.Update(updatedStudio, tx)
 	if err != nil {
-		_ = tx.Rollback()
+		tx.Rollback()
 		return nil, err
 	}
 

pkg/api/resolver_query_find_studio.go

@@ -12,9 +12,9 @@ func (r *queryResolver) FindStudio(ctx context.Context, id string) (*models.Stud
 	return qb.Find(idInt, nil)
 }
 
-func (r *queryResolver) FindStudios(ctx context.Context, filter *models.FindFilterType) (*models.FindStudiosResultType, error) {
+func (r *queryResolver) FindStudios(ctx context.Context, studioFilter *models.StudioFilterType, filter *models.FindFilterType) (*models.FindStudiosResultType, error) {
 	qb := models.NewStudioQueryBuilder()
-	studios, total := qb.Query(filter)
+	studios, total := qb.Query(studioFilter, filter)
 	return &models.FindStudiosResultType{
 		Count:   total,
 		Studios: studios,

pkg/database/database.go

@@ -19,7 +19,7 @@ import (
 
 var DB *sqlx.DB
 var dbPath string
-var appSchemaVersion uint = 8
+var appSchemaVersion uint = 9
 var databaseSchemaVersion uint
 
 const sqlite3Driver = "sqlite3ex"

pkg/database/migrations/9_studios_parent_studio.up.sql

@@ -0,0 +1,3 @@
+ALTER TABLE studios 
+    ADD COLUMN parent_id INTEGER DEFAULT NULL CHECK ( id IS NOT parent_id ) REFERENCES studios(id) on delete set null;
+    CREATE INDEX index_studios_on_parent_id on studios (parent_id);

pkg/manager/jsonschema/studio.go

@@ -2,17 +2,19 @@ package jsonschema
 
 import (
 	"fmt"
-	"github.com/json-iterator/go"
-	"github.com/stashapp/stash/pkg/models"
 	"os"
+
+	jsoniter "github.com/json-iterator/go"
+	"github.com/stashapp/stash/pkg/models"
 )
 
 type Studio struct {
-	Name      string          `json:"name,omitempty"`
-	URL       string          `json:"url,omitempty"`
-	Image     string          `json:"image,omitempty"`
-	CreatedAt models.JSONTime `json:"created_at,omitempty"`
-	UpdatedAt models.JSONTime `json:"updated_at,omitempty"`
+	Name         string          `json:"name,omitempty"`
+	URL          string          `json:"url,omitempty"`
+	ParentStudio string          `json:"parent_studio,omitempty"`
+	Image        string          `json:"image,omitempty"`
+	CreatedAt    models.JSONTime `json:"created_at,omitempty"`
+	UpdatedAt    models.JSONTime `json:"updated_at,omitempty"`
 }
 
 func LoadStudioFile(filePath string) (*Studio, error) {

pkg/manager/studio.go

@@ -0,0 +1,36 @@
+package manager
+
+import (
+	"errors"
+	"fmt"
+
+	"github.com/jmoiron/sqlx"
+	"github.com/stashapp/stash/pkg/models"
+)
+
+func ValidateModifyStudio(studio models.StudioPartial, tx *sqlx.Tx) error {
+	if studio.ParentID == nil || !studio.ParentID.Valid {
+		return nil
+	}
+
+	// ensure there is no cyclic dependency
+	thisID := studio.ID
+	qb := models.NewStudioQueryBuilder()
+
+	currentParentID := *studio.ParentID
+
+	for currentParentID.Valid {
+		if currentParentID.Int64 == int64(thisID) {
+			return errors.New("studio cannot be an ancestor of itself")
+		}
+
+		currentStudio, err := qb.Find(int(currentParentID.Int64), tx)
+		if err != nil {
+			return fmt.Errorf("error finding parent studio: %s", err.Error())
+		}
+
+		currentParentID = currentStudio.ParentID
+	}
+
+	return nil
+}

pkg/manager/task_export.go

@@ -3,6 +3,12 @@ package manager
 import (
 	"context"
 	"fmt"
+	"math"
+	"runtime"
+	"strconv"
+	"sync"
+	"time"
+
 	"github.com/jmoiron/sqlx"
 	"github.com/stashapp/stash/pkg/database"
 	"github.com/stashapp/stash/pkg/logger"
@@ -10,11 +16,6 @@ import (
 	"github.com/stashapp/stash/pkg/manager/paths"
 	"github.com/stashapp/stash/pkg/models"
 	"github.com/stashapp/stash/pkg/utils"
-	"math"
-	"runtime"
-	"strconv"
-	"sync"
-	"time"
 )
 
 type ExportTask struct {
@@ -395,6 +396,8 @@ func (t *ExportTask) ExportStudios(ctx context.Context, workers int) {
 func exportStudio(wg *sync.WaitGroup, jobChan <-chan *models.Studio) {
 	defer wg.Done()
 
+	studioQB := models.NewStudioQueryBuilder()
+
 	for studio := range jobChan {
 
 		newStudioJSON := jsonschema.Studio{
@@ -408,6 +411,12 @@ func exportStudio(wg *sync.WaitGroup, jobChan <-chan *models.Studio) {
 		if studio.URL.Valid {
 			newStudioJSON.URL = studio.URL.String
 		}
+		if studio.ParentID.Valid {
+			parent, _ := studioQB.Find(int(studio.ParentID.Int64), nil)
+			if parent != nil {
+				newStudioJSON.ParentStudio = parent.Name.String
+			}
+		}
 
 		newStudioJSON.Image = utils.GetBase64StringFromData(studio.Image)
 

pkg/manager/task_import.go

@@ -3,6 +3,7 @@ package manager
 import (
 	"context"
 	"database/sql"
+	"fmt"
 	"strconv"
 	"sync"
 	"time"
@@ -157,7 +158,8 @@ func (t *ImportTask) ImportPerformers(ctx context.Context) {
 
 func (t *ImportTask) ImportStudios(ctx context.Context) {
 	tx := database.DB.MustBeginTx(ctx, nil)
-	qb := models.NewStudioQueryBuilder()
+
+	pendingParent := make(map[string][]*jsonschema.Studio)
 
 	for i, mappingJSON := range t.Mappings.Studios {
 		index := i + 1
@@ -172,35 +174,28 @@ func (t *ImportTask) ImportStudios(ctx context.Context) {
 
 		logger.Progressf("[studios] %d of %d", index, len(t.Mappings.Studios))
 
-		// generate checksum from studio name rather than image
-		checksum := utils.MD5FromString(studioJSON.Name)
-
-		// Process the base 64 encoded image string
-		_, imageData, err := utils.ProcessBase64Image(studioJSON.Image)
-		if err != nil {
-			_ = tx.Rollback()
-			logger.Errorf("[studios] <%s> invalid image: %s", mappingJSON.Checksum, err.Error())
-			return
-		}
-
-		// Populate a new studio from the input
-		newStudio := models.Studio{
-			Image:     imageData,
-			Checksum:  checksum,
-			Name:      sql.NullString{String: studioJSON.Name, Valid: true},
-			URL:       sql.NullString{String: studioJSON.URL, Valid: true},
-			CreatedAt: models.SQLiteTimestamp{Timestamp: t.getTimeFromJSONTime(studioJSON.CreatedAt)},
-			UpdatedAt: models.SQLiteTimestamp{Timestamp: t.getTimeFromJSONTime(studioJSON.UpdatedAt)},
-		}
-
-		_, err = qb.Create(newStudio, tx)
-		if err != nil {
-			_ = tx.Rollback()
+		if err := t.ImportStudio(studioJSON, pendingParent, tx); err != nil {
+			tx.Rollback()
 			logger.Errorf("[studios] <%s> failed to create: %s", mappingJSON.Checksum, err.Error())
 			return
 		}
 	}
 
+	// create the leftover studios, warning for missing parents
+	if len(pendingParent) > 0 {
+		logger.Warnf("[studios] importing studios with missing parents")
+
+		for _, s := range pendingParent {
+			for _, orphanStudioJSON := range s {
+				if err := t.ImportStudio(orphanStudioJSON, nil, tx); err != nil {
+					tx.Rollback()
+					logger.Errorf("[studios] <%s> failed to create: %s", orphanStudioJSON.Name, err.Error())
+					return
+				}
+			}
+		}
+	}
+
 	logger.Info("[studios] importing")
 	if err := tx.Commit(); err != nil {
 		logger.Errorf("[studios] import failed to commit: %s", err.Error())
@@ -208,6 +203,74 @@ func (t *ImportTask) ImportStudios(ctx context.Context) {
 	logger.Info("[studios] import complete")
 }
 
+func (t *ImportTask) ImportStudio(studioJSON *jsonschema.Studio, pendingParent map[string][]*jsonschema.Studio, tx *sqlx.Tx) error {
+	qb := models.NewStudioQueryBuilder()
+
+	// generate checksum from studio name rather than image
+	checksum := utils.MD5FromString(studioJSON.Name)
+
+	// Process the base 64 encoded image string
+	_, imageData, err := utils.ProcessBase64Image(studioJSON.Image)
+	if err != nil {
+		return fmt.Errorf("invalid image: %s", err.Error())
+	}
+
+	// Populate a new studio from the input
+	newStudio := models.Studio{
+		Image:     imageData,
+		Checksum:  checksum,
+		Name:      sql.NullString{String: studioJSON.Name, Valid: true},
+		URL:       sql.NullString{String: studioJSON.URL, Valid: true},
+		CreatedAt: models.SQLiteTimestamp{Timestamp: t.getTimeFromJSONTime(studioJSON.CreatedAt)},
+		UpdatedAt: models.SQLiteTimestamp{Timestamp: t.getTimeFromJSONTime(studioJSON.UpdatedAt)},
+	}
+
+	// Populate the parent ID
+	if studioJSON.ParentStudio != "" {
+		studio, err := qb.FindByName(studioJSON.ParentStudio, tx, false)
+		if err != nil {
+			return fmt.Errorf("error finding studio by name <%s>: %s", studioJSON.ParentStudio, err.Error())
+		}
+
+		if studio == nil {
+			// its possible that the parent hasn't been created yet
+			// do it after it is created
+			if pendingParent == nil {
+				logger.Warnf("[studios] studio <%s> does not exist", studioJSON.ParentStudio)
+			} else {
+				// add to the pending parent list so that it is created after the parent
+				s := pendingParent[studioJSON.ParentStudio]
+				s = append(s, studioJSON)
+				pendingParent[studioJSON.ParentStudio] = s
+
+				// skip
+				return nil
+			}
+		} else {
+			newStudio.ParentID = sql.NullInt64{Int64: int64(studio.ID), Valid: true}
+		}
+	}
+
+	_, err = qb.Create(newStudio, tx)
+	if err != nil {
+		return err
+	}
+
+	// now create the studios pending this studios creation
+	s := pendingParent[studioJSON.Name]
+	for _, childStudioJSON := range s {
+		// map is nil since we're not checking parent studios at this point
+		if err := t.ImportStudio(childStudioJSON, nil, tx); err != nil {
+			return fmt.Errorf("failed to create child studio <%s>: %s", childStudioJSON.Name, err.Error())
+		}
+	}
+
+	// delete the entry from the map so that we know its not left over
+	delete(pendingParent, studioJSON.Name)
+
+	return err
+}
+
 func (t *ImportTask) ImportMovies(ctx context.Context) {
 	tx := database.DB.MustBeginTx(ctx, nil)
 	qb := models.NewMovieQueryBuilder()

pkg/models/model_studio.go

@@ -10,8 +10,20 @@ type Studio struct {
 	Checksum  string          `db:"checksum" json:"checksum"`
 	Name      sql.NullString  `db:"name" json:"name"`
 	URL       sql.NullString  `db:"url" json:"url"`
+	ParentID  sql.NullInt64   `db:"parent_id,omitempty" json:"parent_id"`
 	CreatedAt SQLiteTimestamp `db:"created_at" json:"created_at"`
 	UpdatedAt SQLiteTimestamp `db:"updated_at" json:"updated_at"`
 }
 
+type StudioPartial struct {
+	ID        int              `db:"id" json:"id"`
+	Image     *[]byte          `db:"image" json:"image"`
+	Checksum  *string          `db:"checksum" json:"checksum"`
+	Name      *sql.NullString  `db:"name" json:"name"`
+	URL       *sql.NullString  `db:"url" json:"url"`
+	ParentID  *sql.NullInt64   `db:"parent_id,omitempty" json:"parent_id"`
+	CreatedAt *SQLiteTimestamp `db:"created_at" json:"created_at"`
+	UpdatedAt *SQLiteTimestamp `db:"updated_at" json:"updated_at"`
+}
+
 var DefaultStudioImage = "data:image/png;base64,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"

pkg/models/querybuilder_movies.go

@@ -2,7 +2,6 @@ package models
 
 import (
 	"database/sql"
-	"strconv"
 
 	"github.com/jmoiron/sqlx"
 	"github.com/stashapp/stash/pkg/database"
@@ -148,7 +147,7 @@ func (qb *MovieQueryBuilder) Query(movieFilter *MovieFilterType, findFilter *Fin
 			args = append(args, studioID)
 		}
 
-		whereClause, havingClause := qb.getMultiCriterionClause("studio", "", "studio_id", studiosFilter)
+		whereClause, havingClause := getMultiCriterionClause("movies", "studio", "", "", "studio_id", studiosFilter)
 		whereClauses = appendClause(whereClauses, whereClause)
 		havingClauses = appendClause(havingClauses, havingClause)
 	}
@@ -165,29 +164,6 @@ func (qb *MovieQueryBuilder) Query(movieFilter *MovieFilterType, findFilter *Fin
 	return movies, countResult
 }
 
-// returns where clause and having clause
-func (qb *MovieQueryBuilder) getMultiCriterionClause(table string, joinTable string, joinTableField string, criterion *MultiCriterionInput) (string, string) {
-	whereClause := ""
-	havingClause := ""
-	if criterion.Modifier == CriterionModifierIncludes {
-		// includes any of the provided ids
-		whereClause = table + ".id IN " + getInBinding(len(criterion.Value))
-	} else if criterion.Modifier == CriterionModifierIncludesAll {
-		// includes all of the provided ids
-		whereClause = table + ".id IN " + getInBinding(len(criterion.Value))
-		havingClause = "count(distinct " + table + ".id) IS " + strconv.Itoa(len(criterion.Value))
-	} else if criterion.Modifier == CriterionModifierExcludes {
-		// excludes all of the provided ids
-		if joinTable != "" {
-			whereClause = "not exists (select " + joinTable + ".movie_id from " + joinTable + " where " + joinTable + ".movie_id = movies.id and " + joinTable + "." + joinTableField + " in " + getInBinding(len(criterion.Value)) + ")"
-		} else {
-			whereClause = "not exists (select m.id from movies as m where m.id = movies.id and m." + joinTableField + " in " + getInBinding(len(criterion.Value)) + ")"
-		}
-	}
-
-	return whereClause, havingClause
-}
-
 func (qb *MovieQueryBuilder) getMovieSort(findFilter *FindFilterType) string {
 	var sort string
 	var direction string

pkg/models/querybuilder_movies_test.go

@@ -3,6 +3,7 @@
 package models_test
 
 import (
+	"strconv"
 	"strings"
 	"testing"
 
@@ -86,6 +87,42 @@ func TestMovieFindByNames(t *testing.T) {
 	assert.Equal(t, strings.ToLower(movieNames[movieIdxWithScene]), strings.ToLower(movies[1].Name.String))
 }
 
+func TestMovieQueryStudio(t *testing.T) {
+	mqb := models.NewMovieQueryBuilder()
+	studioCriterion := models.MultiCriterionInput{
+		Value: []string{
+			strconv.Itoa(studioIDs[studioIdxWithMovie]),
+		},
+		Modifier: models.CriterionModifierIncludes,
+	}
+
+	movieFilter := models.MovieFilterType{
+		Studios: &studioCriterion,
+	}
+
+	movies, _ := mqb.Query(&movieFilter, nil)
+
+	assert.Len(t, movies, 1)
+
+	// ensure id is correct
+	assert.Equal(t, movieIDs[movieIdxWithStudio], movies[0].ID)
+
+	studioCriterion = models.MultiCriterionInput{
+		Value: []string{
+			strconv.Itoa(studioIDs[studioIdxWithMovie]),
+		},
+		Modifier: models.CriterionModifierExcludes,
+	}
+
+	q := getMovieStringValue(movieIdxWithStudio, titleField)
+	findFilter := models.FindFilterType{
+		Q: &q,
+	}
+
+	movies, _ = mqb.Query(&movieFilter, &findFilter)
+	assert.Len(t, movies, 0)
+}
+
 // TODO Update
 // TODO Destroy
 // TODO Find

pkg/models/querybuilder_scene.go

@@ -2,7 +2,6 @@ package models
 
 import (
 	"database/sql"
-	"strconv"
 	"strings"
 
 	"github.com/jmoiron/sqlx"
@@ -329,7 +328,7 @@ func (qb *SceneQueryBuilder) Query(sceneFilter *SceneFilterType, findFilter *Fin
 		}
 
 		query.body += " LEFT JOIN tags on tags_join.tag_id = tags.id"
-		whereClause, havingClause := getMultiCriterionClause("tags", "scenes_tags", "tag_id", tagsFilter)
+		whereClause, havingClause := getMultiCriterionClause("scenes", "tags", "scenes_tags", "scene_id", "tag_id", tagsFilter)
 		query.addWhere(whereClause)
 		query.addHaving(havingClause)
 	}
@@ -340,7 +339,7 @@ func (qb *SceneQueryBuilder) Query(sceneFilter *SceneFilterType, findFilter *Fin
 		}
 
 		query.body += " LEFT JOIN performers ON performers_join.performer_id = performers.id"
-		whereClause, havingClause := getMultiCriterionClause("performers", "performers_scenes", "performer_id", performersFilter)
+		whereClause, havingClause := getMultiCriterionClause("scenes", "performers", "performers_scenes", "scene_id", "performer_id", performersFilter)
 		query.addWhere(whereClause)
 		query.addHaving(havingClause)
 	}
@@ -350,7 +349,7 @@ func (qb *SceneQueryBuilder) Query(sceneFilter *SceneFilterType, findFilter *Fin
 			query.addArg(studioID)
 		}
 
-		whereClause, havingClause := getMultiCriterionClause("studio", "", "studio_id", studiosFilter)
+		whereClause, havingClause := getMultiCriterionClause("scenes", "studio", "", "", "studio_id", studiosFilter)
 		query.addWhere(whereClause)
 		query.addHaving(havingClause)
 	}
@@ -361,7 +360,7 @@ func (qb *SceneQueryBuilder) Query(sceneFilter *SceneFilterType, findFilter *Fin
 		}
 
 		query.body += " LEFT JOIN movies ON movies_join.movie_id = movies.id"
-		whereClause, havingClause := getMultiCriterionClause("movies", "movies_scenes", "movie_id", moviesFilter)
+		whereClause, havingClause := getMultiCriterionClause("scenes", "movies", "movies_scenes", "scene_id", "movie_id", moviesFilter)
 		query.addWhere(whereClause)
 		query.addHaving(havingClause)
 	}
@@ -414,29 +413,6 @@ func getDurationWhereClause(durationFilter IntCriterionInput) (string, []interfa
 	return clause, args
 }
 
-// returns where clause and having clause
-func getMultiCriterionClause(table string, joinTable string, joinTableField string, criterion *MultiCriterionInput) (string, string) {
-	whereClause := ""
-	havingClause := ""
-	if criterion.Modifier == CriterionModifierIncludes {
-		// includes any of the provided ids
-		whereClause = table + ".id IN " + getInBinding(len(criterion.Value))
-	} else if criterion.Modifier == CriterionModifierIncludesAll {
-		// includes all of the provided ids
-		whereClause = table + ".id IN " + getInBinding(len(criterion.Value))
-		havingClause = "count(distinct " + table + ".id) IS " + strconv.Itoa(len(criterion.Value))
-	} else if criterion.Modifier == CriterionModifierExcludes {
-		// excludes all of the provided ids
-		if joinTable != "" {
-			whereClause = "not exists (select " + joinTable + ".scene_id from " + joinTable + " where " + joinTable + ".scene_id = scenes.id and " + joinTable + "." + joinTableField + " in " + getInBinding(len(criterion.Value)) + ")"
-		} else {
-			whereClause = "not exists (select s.id from scenes as s where s.id = scenes.id and s." + joinTableField + " in " + getInBinding(len(criterion.Value)) + ")"
-		}
-	}
-
-	return whereClause, havingClause
-}
-
 func (qb *SceneQueryBuilder) QueryAllByPathRegex(regex string) ([]*Scene, error) {
 	var args []interface{}
 	body := selectDistinctIDs("scenes") + " WHERE scenes.path regexp ?"

pkg/models/querybuilder_scene_test.go

@@ -676,6 +676,42 @@ func TestSceneQueryStudio(t *testing.T) {
 	assert.Len(t, scenes, 0)
 }
 
+func TestSceneQueryMovies(t *testing.T) {
+	sqb := models.NewSceneQueryBuilder()
+	movieCriterion := models.MultiCriterionInput{
+		Value: []string{
+			strconv.Itoa(movieIDs[movieIdxWithScene]),
+		},
+		Modifier: models.CriterionModifierIncludes,
+	}
+
+	sceneFilter := models.SceneFilterType{
+		Movies: &movieCriterion,
+	}
+
+	scenes, _ := sqb.Query(&sceneFilter, nil)
+
+	assert.Len(t, scenes, 1)
+
+	// ensure id is correct
+	assert.Equal(t, sceneIDs[sceneIdxWithMovie], scenes[0].ID)
+
+	movieCriterion = models.MultiCriterionInput{
+		Value: []string{
+			strconv.Itoa(movieIDs[movieIdxWithScene]),
+		},
+		Modifier: models.CriterionModifierExcludes,
+	}
+
+	q := getSceneStringValue(sceneIdxWithMovie, titleField)
+	findFilter := models.FindFilterType{
+		Q: &q,
+	}
+
+	scenes, _ = sqb.Query(&sceneFilter, &findFilter)
+	assert.Len(t, scenes, 0)
+}
+
 func TestSceneQuerySorting(t *testing.T) {
 	sort := titleField
 	direction := models.SortDirectionEnumAsc

pkg/models/querybuilder_sql.go

@@ -239,6 +239,29 @@ func getIntCriterionWhereClause(column string, input IntCriterionInput) (string,
 	return column + " " + binding, count
 }
 
+// returns where clause and having clause
+func getMultiCriterionClause(primaryTable, foreignTable, joinTable, primaryFK, foreignFK string, criterion *MultiCriterionInput) (string, string) {
+	whereClause := ""
+	havingClause := ""
+	if criterion.Modifier == CriterionModifierIncludes {
+		// includes any of the provided ids
+		whereClause = foreignTable + ".id IN " + getInBinding(len(criterion.Value))
+	} else if criterion.Modifier == CriterionModifierIncludesAll {
+		// includes all of the provided ids
+		whereClause = foreignTable + ".id IN " + getInBinding(len(criterion.Value))
+		havingClause = "count(distinct " + foreignTable + ".id) IS " + strconv.Itoa(len(criterion.Value))
+	} else if criterion.Modifier == CriterionModifierExcludes {
+		// excludes all of the provided ids
+		if joinTable != "" {
+			whereClause = "not exists (select " + joinTable + "." + primaryFK + " from " + joinTable + " where " + joinTable + "." + primaryFK + " = " + primaryTable + ".id and " + joinTable + "." + foreignFK + " in " + getInBinding(len(criterion.Value)) + ")"
+		} else {
+			whereClause = "not exists (select s.id from " + primaryTable + " as s where s.id = " + primaryTable + ".id and s." + foreignFK + " in " + getInBinding(len(criterion.Value)) + ")"
+		}
+	}
+
+	return whereClause, havingClause
+}
+
 func runIdsQuery(query string, args []interface{}) ([]int, error) {
 	var result []struct {
 		Int int `db:"id"`

pkg/models/querybuilder_studio.go

@@ -16,8 +16,8 @@ func NewStudioQueryBuilder() StudioQueryBuilder {
 func (qb *StudioQueryBuilder) Create(newStudio Studio, tx *sqlx.Tx) (*Studio, error) {
 	ensureTx(tx)
 	result, err := tx.NamedExec(
-		`INSERT INTO studios (image, checksum, name, url, created_at, updated_at)
-				VALUES (:image, :checksum, :name, :url, :created_at, :updated_at)
+		`INSERT INTO studios (image, checksum, name, url, parent_id, created_at, updated_at)
+				VALUES (:image, :checksum, :name, :url, :parent_id, :created_at, :updated_at)
 		`,
 		newStudio,
 	)
@@ -35,20 +35,21 @@ func (qb *StudioQueryBuilder) Create(newStudio Studio, tx *sqlx.Tx) (*Studio, er
 	return &newStudio, nil
 }
 
-func (qb *StudioQueryBuilder) Update(updatedStudio Studio, tx *sqlx.Tx) (*Studio, error) {
+func (qb *StudioQueryBuilder) Update(updatedStudio StudioPartial, tx *sqlx.Tx) (*Studio, error) {
 	ensureTx(tx)
 	_, err := tx.NamedExec(
-		`UPDATE studios SET `+SQLGenKeys(updatedStudio)+` WHERE studios.id = :id`,
+		`UPDATE studios SET `+SQLGenKeysPartial(updatedStudio)+` WHERE studios.id = :id`,
 		updatedStudio,
 	)
 	if err != nil {
 		return nil, err
 	}
 
-	if err := tx.Get(&updatedStudio, `SELECT * FROM studios WHERE id = ? LIMIT 1`, updatedStudio.ID); err != nil {
+	var ret Studio
+	if err := tx.Get(&ret, `SELECT * FROM studios WHERE id = ? LIMIT 1`, updatedStudio.ID); err != nil {
 		return nil, err
 	}
-	return &updatedStudio, nil
+	return &ret, nil
 }
 
 func (qb *StudioQueryBuilder) Destroy(id string, tx *sqlx.Tx) error {
@@ -73,6 +74,12 @@ func (qb *StudioQueryBuilder) Find(id int, tx *sqlx.Tx) (*Studio, error) {
 	return qb.queryStudio(query, args, tx)
 }
 
+func (qb *StudioQueryBuilder) FindChildren(id int, tx *sqlx.Tx) ([]*Studio, error) {
+	query := "SELECT studios.* FROM studios WHERE studios.parent_id = ?"
+	args := []interface{}{id}
+	return qb.queryStudios(query, args, tx)
+}
+
 func (qb *StudioQueryBuilder) FindBySceneID(sceneID int) (*Studio, error) {
 	query := "SELECT studios.* FROM studios JOIN scenes ON studios.id = scenes.studio_id WHERE scenes.id = ? LIMIT 1"
 	args := []interface{}{sceneID}
@@ -101,7 +108,10 @@ func (qb *StudioQueryBuilder) AllSlim() ([]*Studio, error) {
 	return qb.queryStudios("SELECT studios.id, studios.name FROM studios "+qb.getStudioSort(nil), nil, nil)
 }
 
-func (qb *StudioQueryBuilder) Query(findFilter *FindFilterType) ([]*Studio, int) {
+func (qb *StudioQueryBuilder) Query(studioFilter *StudioFilterType, findFilter *FindFilterType) ([]*Studio, int) {
+	if studioFilter == nil {
+		studioFilter = &StudioFilterType{}
+	}
 	if findFilter == nil {
 		findFilter = &FindFilterType{}
 	}
@@ -116,11 +126,26 @@ func (qb *StudioQueryBuilder) Query(findFilter *FindFilterType) ([]*Studio, int)
 
 	if q := findFilter.Q; q != nil && *q != "" {
 		searchColumns := []string{"studios.name"}
+
 		clause, thisArgs := getSearchBinding(searchColumns, *q, false)
 		whereClauses = append(whereClauses, clause)
 		args = append(args, thisArgs...)
 	}
 
+	if parentsFilter := studioFilter.Parents; parentsFilter != nil && len(parentsFilter.Value) > 0 {
+		body += `
+			left join studios as parent_studio on parent_studio.id = studios.parent_id
+		`
+
+		for _, studioID := range parentsFilter.Value {
+			args = append(args, studioID)
+		}
+
+		whereClause, havingClause := getMultiCriterionClause("studios", "parent_studio", "", "", "parent_id", parentsFilter)
+		whereClauses = appendClause(whereClauses, whereClause)
+		havingClauses = appendClause(havingClauses, havingClause)
+	}
+
 	sortAndPagination := qb.getStudioSort(findFilter) + getPagination(findFilter)
 	idsResult, countResult := executeFindQuery("studios", body, args, sortAndPagination, whereClauses, havingClauses)
 

pkg/models/querybuilder_studio_test.go

@@ -3,9 +3,13 @@
 package models_test
 
 import (
+	"context"
+	"database/sql"
+	"strconv"
 	"strings"
 	"testing"
 
+	"github.com/stashapp/stash/pkg/database"
 	"github.com/stashapp/stash/pkg/models"
 	"github.com/stretchr/testify/assert"
 )
@@ -39,6 +43,173 @@ func TestStudioFindByName(t *testing.T) {
 
 }
 
+func TestStudioQueryParent(t *testing.T) {
+	sqb := models.NewStudioQueryBuilder()
+	studioCriterion := models.MultiCriterionInput{
+		Value: []string{
+			strconv.Itoa(studioIDs[studioIdxWithChildStudio]),
+		},
+		Modifier: models.CriterionModifierIncludes,
+	}
+
+	studioFilter := models.StudioFilterType{
+		Parents: &studioCriterion,
+	}
+
+	studios, _ := sqb.Query(&studioFilter, nil)
+
+	assert.Len(t, studios, 1)
+
+	// ensure id is correct
+	assert.Equal(t, sceneIDs[studioIdxWithParentStudio], studios[0].ID)
+
+	studioCriterion = models.MultiCriterionInput{
+		Value: []string{
+			strconv.Itoa(studioIDs[studioIdxWithChildStudio]),
+		},
+		Modifier: models.CriterionModifierExcludes,
+	}
+
+	q := getStudioStringValue(studioIdxWithParentStudio, titleField)
+	findFilter := models.FindFilterType{
+		Q: &q,
+	}
+
+	studios, _ = sqb.Query(&studioFilter, &findFilter)
+	assert.Len(t, studios, 0)
+}
+
+func TestStudioDestroyParent(t *testing.T) {
+	const parentName = "parent"
+	const childName = "child"
+
+	// create parent and child studios
+	ctx := context.TODO()
+	tx := database.DB.MustBeginTx(ctx, nil)
+
+	createdParent, err := createStudio(tx, parentName, nil)
+	if err != nil {
+		tx.Rollback()
+		t.Fatalf("Error creating parent studio: %s", err.Error())
+	}
+
+	parentID := int64(createdParent.ID)
+	createdChild, err := createStudio(tx, childName, &parentID)
+	if err != nil {
+		tx.Rollback()
+		t.Fatalf("Error creating child studio: %s", err.Error())
+	}
+
+	if err := tx.Commit(); err != nil {
+		tx.Rollback()
+		t.Fatalf("Error committing: %s", err.Error())
+	}
+
+	sqb := models.NewStudioQueryBuilder()
+
+	// destroy the parent
+	tx = database.DB.MustBeginTx(ctx, nil)
+
+	err = sqb.Destroy(strconv.Itoa(createdParent.ID), tx)
+	if err != nil {
+		tx.Rollback()
+		t.Fatalf("Error destroying parent studio: %s", err.Error())
+	}
+
+	if err := tx.Commit(); err != nil {
+		tx.Rollback()
+		t.Fatalf("Error committing: %s", err.Error())
+	}
+
+	// destroy the child
+	tx = database.DB.MustBeginTx(ctx, nil)
+
+	err = sqb.Destroy(strconv.Itoa(createdChild.ID), tx)
+	if err != nil {
+		tx.Rollback()
+		t.Fatalf("Error destroying child studio: %s", err.Error())
+	}
+
+	if err := tx.Commit(); err != nil {
+		tx.Rollback()
+		t.Fatalf("Error committing: %s", err.Error())
+	}
+}
+
+func TestStudioFindChildren(t *testing.T) {
+	sqb := models.NewStudioQueryBuilder()
+
+	studios, err := sqb.FindChildren(studioIDs[studioIdxWithChildStudio], nil)
+
+	if err != nil {
+		t.Fatalf("error calling FindChildren: %s", err.Error())
+	}
+
+	assert.Len(t, studios, 1)
+	assert.Equal(t, studioIDs[studioIdxWithParentStudio], studios[0].ID)
+
+	studios, err = sqb.FindChildren(0, nil)
+
+	if err != nil {
+		t.Fatalf("error calling FindChildren: %s", err.Error())
+	}
+
+	assert.Len(t, studios, 0)
+}
+
+func TestStudioUpdateClearParent(t *testing.T) {
+	const parentName = "clearParent_parent"
+	const childName = "clearParent_child"
+
+	// create parent and child studios
+	ctx := context.TODO()
+	tx := database.DB.MustBeginTx(ctx, nil)
+
+	createdParent, err := createStudio(tx, parentName, nil)
+	if err != nil {
+		tx.Rollback()
+		t.Fatalf("Error creating parent studio: %s", err.Error())
+	}
+
+	parentID := int64(createdParent.ID)
+	createdChild, err := createStudio(tx, childName, &parentID)
+	if err != nil {
+		tx.Rollback()
+		t.Fatalf("Error creating child studio: %s", err.Error())
+	}
+
+	if err := tx.Commit(); err != nil {
+		tx.Rollback()
+		t.Fatalf("Error committing: %s", err.Error())
+	}
+
+	sqb := models.NewStudioQueryBuilder()
+
+	// clear the parent id from the child
+	tx = database.DB.MustBeginTx(ctx, nil)
+
+	updatePartial := models.StudioPartial{
+		ID:       createdChild.ID,
+		ParentID: &sql.NullInt64{Valid: false},
+	}
+
+	updatedStudio, err := sqb.Update(updatePartial, tx)
+
+	if err != nil {
+		tx.Rollback()
+		t.Fatalf("Error updated studio: %s", err.Error())
+	}
+
+	if updatedStudio.ParentID.Valid {
+		t.Error("updated studio has parent ID set")
+	}
+
+	if err := tx.Commit(); err != nil {
+		tx.Rollback()
+		t.Fatalf("Error committing: %s", err.Error())
+	}
+}
+
 // TODO Create
 // TODO Update
 // TODO Destroy

pkg/models/setup_test.go

@@ -22,12 +22,12 @@ import (
 const totalScenes = 12
 const performersNameCase = 3
 const performersNameNoCase = 2
-const moviesNameCase = 1
+const moviesNameCase = 2
 const moviesNameNoCase = 1
 const totalGalleries = 1
 const tagsNameNoCase = 2
 const tagsNameCase = 5
-const studiosNameCase = 1
+const studiosNameCase = 4
 const studiosNameNoCase = 1
 
 var sceneIDs []int
@@ -61,9 +61,10 @@ const performerIdx1WithDupName = 3
 const performerIdxWithDupName = 4
 
 const movieIdxWithScene = 0
+const movieIdxWithStudio = 1
 
 // movies with dup names start from the end
-const movieIdxWithDupName = 1
+const movieIdxWithDupName = 2
 
 const galleryIdxWithScene = 0
 
@@ -78,9 +79,12 @@ const tagIdx1WithDupName = 5
 const tagIdxWithDupName = 6
 
 const studioIdxWithScene = 0
+const studioIdxWithMovie = 1
+const studioIdxWithChildStudio = 2
+const studioIdxWithParentStudio = 3
 
 // studios with dup names start from the end
-const studioIdxWithDupName = 1
+const studioIdxWithDupName = 4
 
 const markerIdxWithScene = 0
 
@@ -196,6 +200,16 @@ func populateDB() error {
 		return err
 	}
 
+	if err := linkMovieStudio(tx, movieIdxWithStudio, studioIdxWithMovie); err != nil {
+		tx.Rollback()
+		return err
+	}
+
+	if err := linkStudioParent(tx, studioIdxWithChildStudio, studioIdxWithParentStudio); err != nil {
+		tx.Rollback()
+		return err
+	}
+
 	if err := createMarker(tx, sceneIdxWithMarker, tagIdxWithPrimaryMarker, []int{tagIdxWithMarker}); err != nil {
 		tx.Rollback()
 		return err
@@ -312,10 +326,9 @@ func createMovies(tx *sqlx.Tx, n int, o int) error {
 	const namePlain = "Name"
 	const nameNoCase = "NaMe"
 
-	name := namePlain
-
 	for i := 0; i < n+o; i++ {
 		index := i
+		name := namePlain
 
 		if i >= n { // i<n tags get normal names
 			name = nameNoCase       // i>=n movies get dup names if case is not checked
@@ -323,8 +336,9 @@ func createMovies(tx *sqlx.Tx, n int, o int) error {
 		} // so count backwards to 0 as needed
 		// movies [ i ] and [ n + o - i - 1  ] should have similar names with only the Name!=NaMe part different
 
+		name = getMovieStringValue(index, name)
 		movie := models.Movie{
-			Name:       sql.NullString{String: getMovieStringValue(index, name), Valid: true},
+			Name:       sql.NullString{String: name, Valid: true},
 			FrontImage: []byte(models.DefaultMovieImage),
 			Checksum:   utils.MD5FromString(name),
 		}
@@ -332,7 +346,7 @@ func createMovies(tx *sqlx.Tx, n int, o int) error {
 		created, err := mqb.Create(movie, tx)
 
 		if err != nil {
-			return fmt.Errorf("Error creating movie %v+: %s", movie, err.Error())
+			return fmt.Errorf("Error creating movie [%d] %v+: %s", i, movie, err.Error())
 		}
 
 		movieIDs = append(movieIDs, created.ID)
@@ -432,16 +446,35 @@ func getStudioStringValue(index int, field string) string {
 	return "studio_" + strconv.FormatInt(int64(index), 10) + "_" + field
 }
 
+func createStudio(tx *sqlx.Tx, name string, parentID *int64) (*models.Studio, error) {
+	sqb := models.NewStudioQueryBuilder()
+	studio := models.Studio{
+		Name:     sql.NullString{String: name, Valid: true},
+		Image:    []byte(models.DefaultStudioImage),
+		Checksum: utils.MD5FromString(name),
+	}
+
+	if parentID != nil {
+		studio.ParentID = sql.NullInt64{Int64: *parentID, Valid: true}
+	}
+
+	created, err := sqb.Create(studio, tx)
+
+	if err != nil {
+		return nil, fmt.Errorf("Error creating studio %v+: %s", studio, err.Error())
+	}
+
+	return created, nil
+}
+
 //createStudios creates n studios with plain Name and o studios with camel cased NaMe included
 func createStudios(tx *sqlx.Tx, n int, o int) error {
-	sqb := models.NewStudioQueryBuilder()
 	const namePlain = "Name"
 	const nameNoCase = "NaMe"
 
-	name := namePlain
-
 	for i := 0; i < n+o; i++ {
 		index := i
+		name := namePlain
 
 		if i >= n { // i<n studios get normal names
 			name = nameNoCase       // i>=n studios get dup names if case is not checked
@@ -449,16 +482,11 @@ func createStudios(tx *sqlx.Tx, n int, o int) error {
 		} // so count backwards to 0 as needed
 		// studios [ i ] and [ n + o - i - 1  ] should have similar names with only the Name!=NaMe part different
 
-		tag := models.Studio{
-			Name:     sql.NullString{String: getStudioStringValue(index, name), Valid: true},
-			Image:    []byte(models.DefaultStudioImage),
-			Checksum: utils.MD5FromString(name),
-		}
-
-		created, err := sqb.Create(tag, tx)
+		name = getStudioStringValue(index, name)
+		created, err := createStudio(tx, name, nil)
 
 		if err != nil {
-			return fmt.Errorf("Error creating studio %v+: %s", tag, err.Error())
+			return err
 		}
 
 		studioIDs = append(studioIDs, created.ID)
@@ -582,3 +610,27 @@ func linkSceneStudio(tx *sqlx.Tx, sceneIndex, studioIndex int) error {
 
 	return err
 }
+
+func linkMovieStudio(tx *sqlx.Tx, movieIndex, studioIndex int) error {
+	mqb := models.NewMovieQueryBuilder()
+
+	movie := models.MoviePartial{
+		ID:       movieIDs[movieIndex],
+		StudioID: &sql.NullInt64{Int64: int64(studioIDs[studioIndex]), Valid: true},
+	}
+	_, err := mqb.Update(movie, tx)
+
+	return err
+}
+
+func linkStudioParent(tx *sqlx.Tx, parentIndex, childIndex int) error {
+	sqb := models.NewStudioQueryBuilder()
+
+	studio := models.StudioPartial{
+		ID:       studioIDs[childIndex],
+		ParentID: &sql.NullInt64{Int64: int64(studioIDs[parentIndex]), Valid: true},
+	}
+	_, err := sqb.Update(studio, tx)
+
+	return err
+}

ui/v2.5/src/components/Changelog/versions/v030.tsx

@@ -2,6 +2,9 @@ import React from "react";
 import ReactMarkdown from "react-markdown";
 
 const markup = `
+### ✨ New Features
+*  Add support for parent/child studios.
+
 ### 🎨 Improvements
 *  Show rating as stars in scene page.
 *  Add reload scrapers button.

ui/v2.5/src/components/List/AddFilter.tsx

@@ -140,6 +140,7 @@ export const AddFilter: React.FC<IAddFilterProps> = (
         if (
           criterion.type !== "performers" &&
           criterion.type !== "studios" &&
+          criterion.type !== "parent_studios" &&
           criterion.type !== "tags" &&
           criterion.type !== "sceneTags" &&
           criterion.type !== "movies"

ui/v2.5/src/components/Shared/Select.tsx

@@ -23,7 +23,13 @@ type ValidTypes =
 type Option = { value: string; label: string };
 
 interface ITypeProps {
-  type?: "performers" | "studios" | "tags" | "sceneTags" | "movies";
+  type?:
+    | "performers"
+    | "studios"
+    | "parent_studios"
+    | "tags"
+    | "sceneTags"
+    | "movies";
 }
 interface IFilterProps {
   ids?: string[];
@@ -175,7 +181,7 @@ export const MarkerTitleSuggest: React.FC<IMarkerSuggestProps> = (props) => {
 export const FilterSelect: React.FC<IFilterProps & ITypeProps> = (props) =>
   props.type === "performers" ? (
     <PerformerSelect {...(props as IFilterProps)} />
-  ) : props.type === "studios" ? (
+  ) : props.type === "studios" || props.type === "parent_studios" ? (
     <StudioSelect {...(props as IFilterProps)} />
   ) : props.type === "movies" ? (
     <MovieSelect {...(props as IFilterProps)} />

ui/v2.5/src/components/Studios/StudioCard.tsx

@@ -3,12 +3,45 @@ import React from "react";
 import { Link } from "react-router-dom";
 import * as GQL from "src/core/generated-graphql";
 import { FormattedPlural } from "react-intl";
+import { NavUtils } from "src/utils";
 
 interface IProps {
   studio: GQL.StudioDataFragment;
+  hideParent?: boolean;
 }
 
-export const StudioCard: React.FC<IProps> = ({ studio }) => {
+function maybeRenderParent(
+  studio: GQL.StudioDataFragment,
+  hideParent?: boolean
+) {
+  if (!hideParent && studio.parent_studio) {
+    return (
+      <div>
+        Part of&nbsp;
+        <Link to={`/studios/${studio.parent_studio.id}`}>
+          {studio.parent_studio.name}
+        </Link>
+        .
+      </div>
+    );
+  }
+}
+
+function maybeRenderChildren(studio: GQL.StudioDataFragment) {
+  if (studio.child_studios.length > 0) {
+    return (
+      <div>
+        Parent of&nbsp;
+        <Link to={NavUtils.makeChildStudiosUrl(studio)}>
+          {studio.child_studios.length} studios
+        </Link>
+        .
+      </div>
+    );
+  }
+}
+
+export const StudioCard: React.FC<IProps> = ({ studio, hideParent }) => {
   return (
     <Card className="studio-card">
       <Link to={`/studios/${studio.id}`} className="studio-card-header">
@@ -29,6 +62,8 @@ export const StudioCard: React.FC<IProps> = ({ studio }) => {
           />
           .
         </span>
+        {maybeRenderParent(studio, hideParent)}
+        {maybeRenderChildren(studio)}
       </div>
     </Card>
   );

ui/v2.5/src/components/Studios/StudioDetails/Studio.tsx

@@ -1,6 +1,6 @@
 /* eslint-disable react/no-this-in-sfc */
 
-import { Table } from "react-bootstrap";
+import { Table, Tabs, Tab } from "react-bootstrap";
 import React, { useEffect, useState } from "react";
 import { useParams, useHistory } from "react-router-dom";
 import cx from "classnames";
@@ -18,9 +18,11 @@ import {
   DetailsEditNavbar,
   Modal,
   LoadingIndicator,
+  StudioSelect,
 } from "src/components/Shared";
 import { useToast } from "src/hooks";
 import { StudioScenesPanel } from "./StudioScenesPanel";
+import { StudioChildrenPanel } from "./StudioChildrenPanel";
 
 export const Studio: React.FC = () => {
   const history = useHistory();
@@ -36,6 +38,7 @@ export const Studio: React.FC = () => {
   const [image, setImage] = useState<string>();
   const [name, setName] = useState<string>();
   const [url, setUrl] = useState<string>();
+  const [parentStudioId, setParentStudioId] = useState<string>();
 
   // Studio state
   const [studio, setStudio] = useState<Partial<GQL.StudioDataFragment>>({});
@@ -55,6 +58,7 @@ export const Studio: React.FC = () => {
   function updateStudioEditState(state: Partial<GQL.StudioDataFragment>) {
     setName(state.name);
     setUrl(state.url ?? undefined);
+    setParentStudioId(state?.parent_studio?.id ?? undefined);
   }
 
   function updateStudioData(studioData: Partial<GQL.StudioDataFragment>) {
@@ -89,6 +93,7 @@ export const Studio: React.FC = () => {
     const input: Partial<GQL.StudioCreateInput | GQL.StudioUpdateInput> = {
       name,
       url,
+      parent_id: parentStudioId,
       image,
     };
 
@@ -189,6 +194,20 @@ export const Studio: React.FC = () => {
               isEditing: !!isEditing,
               onChange: setUrl,
             })}
+            <tr>
+              <td>Parent Studio</td>
+              <td>
+                <StudioSelect
+                  onSelect={(items) =>
+                    setParentStudioId(
+                      items.length > 0 ? items[0]?.id : undefined
+                    )
+                  }
+                  ids={parentStudioId ? [parentStudioId] : []}
+                  isDisabled={!isEditing}
+                />
+              </td>
+            </tr>
           </tbody>
         </Table>
         <DetailsEditNavbar
@@ -205,7 +224,14 @@ export const Studio: React.FC = () => {
       </div>
       {!isNew && (
         <div className="col-12 col-sm-8">
-          <StudioScenesPanel studio={studio} />
+          <Tabs id="studio-tabs" mountOnEnter>
+            <Tab eventKey="studio-scenes-panel" title="Scenes">
+              <StudioScenesPanel studio={studio} />
+            </Tab>
+            <Tab eventKey="studio-children-panel" title="Child Studios">
+              <StudioChildrenPanel studio={studio} />
+            </Tab>
+          </Tabs>
         </div>
       )}
       {renderDeleteAlert()}

ui/v2.5/src/components/Studios/StudioDetails/StudioChildrenPanel.tsx

@@ -0,0 +1,47 @@
+import React from "react";
+import * as GQL from "src/core/generated-graphql";
+import { ParentStudiosCriterion } from "src/models/list-filter/criteria/studios";
+import { ListFilterModel } from "src/models/list-filter/filter";
+import { StudioList } from "../StudioList";
+
+interface IStudioChildrenPanel {
+  studio: Partial<GQL.StudioDataFragment>;
+}
+
+export const StudioChildrenPanel: React.FC<IStudioChildrenPanel> = ({
+  studio,
+}) => {
+  function filterHook(filter: ListFilterModel) {
+    const studioValue = { id: studio.id!, label: studio.name! };
+    // if studio is already present, then we modify it, otherwise add
+    let parentStudioCriterion = filter.criteria.find((c) => {
+      return c.type === "parent_studios";
+    }) as ParentStudiosCriterion;
+
+    if (
+      parentStudioCriterion &&
+      (parentStudioCriterion.modifier === GQL.CriterionModifier.IncludesAll ||
+        parentStudioCriterion.modifier === GQL.CriterionModifier.Includes)
+    ) {
+      // add the studio if not present
+      if (
+        !parentStudioCriterion.value.find((p) => {
+          return p.id === studio.id;
+        })
+      ) {
+        parentStudioCriterion.value.push(studioValue);
+      }
+
+      parentStudioCriterion.modifier = GQL.CriterionModifier.IncludesAll;
+    } else {
+      // overwrite
+      parentStudioCriterion = new ParentStudiosCriterion();
+      parentStudioCriterion.value = [studioValue];
+      filter.criteria.push(parentStudioCriterion);
+    }
+
+    return filter;
+  }
+
+  return <StudioList fromParent filterHook={filterHook} />;
+};

ui/v2.5/src/components/Studios/StudioList.tsx

@@ -5,9 +5,19 @@ import { ListFilterModel } from "src/models/list-filter/filter";
 import { DisplayMode } from "src/models/list-filter/types";
 import { StudioCard } from "./StudioCard";
 
-export const StudioList: React.FC = () => {
+interface IStudioList {
+  fromParent?: boolean;
+  filterHook?: (filter: ListFilterModel) => ListFilterModel;
+}
+
+export const StudioList: React.FC<IStudioList> = ({
+  fromParent,
+  filterHook,
+}) => {
   const listData = useStudiosList({
     renderContent,
+    subComponent: fromParent,
+    filterHook,
   });
 
   function renderContent(
@@ -20,7 +30,11 @@ export const StudioList: React.FC = () => {
       return (
         <div className="row px-xl-5 justify-content-center">
           {result.data.findStudios.studios.map((studio) => (
-            <StudioCard key={studio.id} studio={studio} />
+            <StudioCard
+              key={studio.id}
+              studio={studio}
+              hideParent={fromParent}
+            />
           ))}
         </div>
       );

ui/v2.5/src/core/StashService.ts

@@ -74,6 +74,7 @@ export const useFindStudios = (filter: ListFilterModel) =>
   GQL.useFindStudiosQuery({
     variables: {
       filter: filter.makeFindFilter(),
+      studio_filter: filter.makeStudioFilter(),
     },
   });
 

ui/v2.5/src/models/list-filter/criteria/criterion.ts

@@ -31,7 +31,8 @@ export type CriterionType =
   | "tattoos"
   | "piercings"
   | "aliases"
-  | "gender";
+  | "gender"
+  | "parent_studios";
 
 type Option = string | number | IOptionType;
 export type CriterionValue = string | number | ILabeledId[];
@@ -93,6 +94,8 @@ export abstract class Criterion {
         return "Aliases";
       case "gender":
         return "Gender";
+      case "parent_studios":
+        return "Parent Studios";
     }
   }
 

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

@@ -24,3 +24,13 @@ export class StudiosCriterionOption implements ICriterionOption {
   public label: string = Criterion.getLabel("studios");
   public value: CriterionType = "studios";
 }
+
+export class ParentStudiosCriterion extends StudiosCriterion {
+  public type: CriterionType = "parent_studios";
+  public parameterName: string = "parents";
+}
+
+export class ParentStudiosCriterionOption implements ICriterionOption {
+  public label: string = Criterion.getLabel("parent_studios");
+  public value: CriterionType = "parent_studios";
+}

ui/v2.5/src/models/list-filter/criteria/utils.ts

@@ -17,7 +17,7 @@ import { NoneCriterion } from "./none";
 import { PerformersCriterion } from "./performers";
 import { RatingCriterion } from "./rating";
 import { ResolutionCriterion } from "./resolution";
-import { StudiosCriterion } from "./studios";
+import { StudiosCriterion, ParentStudiosCriterion } from "./studios";
 import { TagsCriterion } from "./tags";
 import { GenderCriterion } from "./gender";
 import { MoviesCriterion } from "./movies";
@@ -50,6 +50,8 @@ export function makeCriteria(type: CriterionType = "none") {
       return new PerformersCriterion();
     case "studios":
       return new StudiosCriterion();
+    case "parent_studios":
+      return new ParentStudiosCriterion();
     case "movies":
       return new MoviesCriterion();
     case "birth_year":

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

@@ -7,6 +7,7 @@ import {
   SceneMarkerFilterType,
   SortDirectionEnum,
   MovieFilterType,
+  StudioFilterType,
 } from "src/core/generated-graphql";
 import { stringToGender } from "src/core/StashService";
 import {
@@ -41,7 +42,12 @@ import {
   ResolutionCriterion,
   ResolutionCriterionOption,
 } from "./criteria/resolution";
-import { StudiosCriterion, StudiosCriterionOption } from "./criteria/studios";
+import {
+  StudiosCriterion,
+  StudiosCriterionOption,
+  ParentStudiosCriterion,
+  ParentStudiosCriterionOption,
+} from "./criteria/studios";
 import {
   SceneTagsCriterionOption,
   TagsCriterion,
@@ -159,7 +165,10 @@ export class ListFilterModel {
         this.sortBy = "name";
         this.sortByOptions = ["name", "scenes_count"];
         this.displayModeOptions = [DisplayMode.Grid];
-        this.criterionOptions = [new NoneCriterionOption()];
+        this.criterionOptions = [
+          new NoneCriterionOption(),
+          new ParentStudiosCriterionOption(),
+        ];
         break;
       case FilterMode.Movies:
         this.sortBy = "name";
@@ -576,4 +585,22 @@ export class ListFilterModel {
     });
     return result;
   }
+
+  public makeStudioFilter(): StudioFilterType {
+    const result: StudioFilterType = {};
+    this.criteria.forEach((criterion) => {
+      switch (criterion.type) {
+        case "parent_studios": {
+          const studCrit = criterion as ParentStudiosCriterion;
+          result.parents = {
+            value: studCrit.value.map((studio) => studio.id),
+            modifier: studCrit.modifier,
+          };
+          break;
+        }
+        // no default
+      }
+    });
+    return result;
+  }
 }

ui/v2.5/src/utils/navigation.ts

@@ -1,6 +1,9 @@
 import * as GQL from "src/core/generated-graphql";
 import { PerformersCriterion } from "src/models/list-filter/criteria/performers";
-import { StudiosCriterion } from "src/models/list-filter/criteria/studios";
+import {
+  StudiosCriterion,
+  ParentStudiosCriterion,
+} from "src/models/list-filter/criteria/studios";
 import { TagsCriterion } from "src/models/list-filter/criteria/tags";
 import { ListFilterModel } from "src/models/list-filter/filter";
 import { FilterMode } from "src/models/list-filter/types";
@@ -30,6 +33,17 @@ const makeStudioScenesUrl = (studio: Partial<GQL.StudioDataFragment>) => {
   return `/scenes?${filter.makeQueryParameters()}`;
 };
 
+const makeChildStudiosUrl = (studio: Partial<GQL.StudioDataFragment>) => {
+  if (!studio.id) return "#";
+  const filter = new ListFilterModel(FilterMode.Studios);
+  const criterion = new ParentStudiosCriterion();
+  criterion.value = [
+    { id: studio.id, label: studio.name || `Studio ${studio.id}` },
+  ];
+  filter.criteria.push(criterion);
+  return `/studios?${filter.makeQueryParameters()}`;
+};
+
 const makeMovieScenesUrl = (movie: Partial<GQL.MovieDataFragment>) => {
   if (!movie.id) return "#";
   const filter = new ListFilterModel(FilterMode.Scenes);
@@ -73,4 +87,5 @@ export default {
   makeTagScenesUrl,
   makeSceneMarkerUrl,
   makeMovieScenesUrl,
+  makeChildStudiosUrl,
 };