Define polymorphic has-one and has-many associations in GORM.
npx skills add https://github.com/liurida/gorm-development-skill --skill gorm-polymorphism
Please help me install this Agent Skill. Skill: gorm-polymorphism Source: https://github.com/liurida/gorm-development-skill/tree/main/polymorphism Command: npx skills add https://github.com/liurida/gorm-development-skill --skill gorm-polymorphism
Many applications need a child model to belong to different parent models, but traditional foreign keys require separate columns per parent type, causing schema bloat and inflexible queries. This skill provides a unified way to model such relationships in GORM.
Ask the skill to configure a polymorphic has‑many relationship between posts and comments.
High-intent search queries and answers about installing and using this skill.
To set up a polymorphic association in GORM, you define a has-one or has-many relationship using a unified owner ID and owner type column. This allows a child model, such as a comment, to dynamically belong to different parent models like posts or videos.
The best way to store comments for different parent models in Go is using polymorphic associations. This stores both the owner ID and owner type in a single table, reducing schema complexity by avoiding separate foreign key columns for each parent type.
Yes, you can use custom column names for polymorphic fields in GORM. The implementation allows overriding default column names and type values to seamlessly map polymorphic associations onto existing legacy database schemas.
Yes, GORM supports eager loading for polymorphic has-many relationships. You can preload polymorphic data and manage the relationships using GORM's association mode API without relying on database foreign key constraints.
You should use a polymorphic association instead of standard foreign keys when a child model needs to belong to multiple different parent types. This approach prevents schema bloat by using unified owner columns rather than adding separate foreign keys for every parent model.
Polymorphic associations in GORM operate without relying on database foreign key constraints because the relationship is managed through application-level owner ID and type columns. Operations are handled directly via GORM's association API rather than database-level enforcement.
liuridaDefine one-to-many GORM relationships with foreign keys and association operations.
liuridaDefine GORM one-to-one relationships where the associated model holds the foreign key.
MicrockValidate database schemas, constraints, migrations, and transaction isolation.
monforjeProvide guidelines for Go struct and interface design patterns.
