Search gists on user profile with title, visibility, language & topics (#422)

internal/db/gist_language.go

@@ -0,0 +1,27 @@
+package db
+
+type GistLanguage struct {
+	GistID   uint   `gorm:"primaryKey"`
+	Language string `gorm:"primaryKey;size:100"`
+}
+
+func GetGistLanguagesForUser(fromUserId, currentUserId uint) ([]struct {
+	Language string
+	Count    int64
+}, error) {
+	var results []struct {
+		Language string
+		Count    int64
+	}
+
+	err := gistsFromUserStatement(fromUserId, currentUserId).Model(&GistLanguage{}).
+		Select("language, count(*) as count").
+		Joins("JOIN gists ON gists.id = gist_languages.gist_id").
+		Where("gists.user_id = ?", fromUserId).
+		Group("language").
+		Order("count DESC").
+		Limit(15). // Added limit of 15
+		Find(&results).Error
+
+	return results, err
+}