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Relationships
A join is used to combine rows from two or more tables, based on a related column between them.
In Forest Admin, relations are defined as fields and are traversable in only one direction.
Four join types are available:
ManyToOne
, ManyToMany
, OneToMany
, and OneToOne
.Type | Where are the common keys? |
---|---|
ManyToOne | origin[foreignKey] == foreign[foreignKeyTarget] |
OneToMany | origin[originKeyTarget] == foreign[originKey] |
ManyToMany | origin[originKeyTarget] == through[originKey] && though[foreignKey] == foreign[foreignKeyTarget] |
OneToOne | origin[originKeyTarget] == foreign[originKey] |
Last modified 7mo ago