Studio aliases (#1660)

* Add migration to create studio aliases table
* Refactor studioQueryBuilder.Query to use filterBuilder
* Expand GraphQL API with aliases support for studio
* Add aliases support for studios to the UI
* List aliases in details panel
* Allow editing aliases in edit panel
* Add 'aliases' filter when searching
* Find studios by alias in filter / select
* Add auto-tagging based on studio aliases
* Support studio aliases for filename parsing
* Support importing and exporting of studio aliases
* Search for studio alias as well during scraping

pkg/studio/update.go

@@ -0,0 +1,65 @@
+package studio
+
+import (
+	"fmt"
+
+	"github.com/stashapp/stash/pkg/models"
+)
+
+type NameExistsError struct {
+	Name string
+}
+
+func (e *NameExistsError) Error() string {
+	return fmt.Sprintf("studio with name '%s' already exists", e.Name)
+}
+
+type NameUsedByAliasError struct {
+	Name        string
+	OtherStudio string
+}
+
+func (e *NameUsedByAliasError) Error() string {
+	return fmt.Sprintf("name '%s' is used as alias for '%s'", e.Name, e.OtherStudio)
+}
+
+// EnsureStudioNameUnique returns an error if the studio name provided
+// is used as a name or alias of another existing tag.
+func EnsureStudioNameUnique(id int, name string, qb models.StudioReader) error {
+	// ensure name is unique
+	sameNameStudio, err := ByName(qb, name)
+	if err != nil {
+		return err
+	}
+
+	if sameNameStudio != nil && id != sameNameStudio.ID {
+		return &NameExistsError{
+			Name: name,
+		}
+	}
+
+	// query by alias
+	sameNameStudio, err = ByAlias(qb, name)
+	if err != nil {
+		return err
+	}
+
+	if sameNameStudio != nil && id != sameNameStudio.ID {
+		return &NameUsedByAliasError{
+			Name:        name,
+			OtherStudio: sameNameStudio.Name.String,
+		}
+	}
+
+	return nil
+}
+
+func EnsureAliasesUnique(id int, aliases []string, qb models.StudioReader) error {
+	for _, a := range aliases {
+		if err := EnsureStudioNameUnique(id, a, qb); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}