gistfile1.yml

# config/doctrine/schema.yml

Category:
    columns:
        id:
            type: integer(11)
            notnull: true
            autoincrement: true
            primary: true
            unsigned: true
        name:
            type: string(255)
Item:
    columns:
        id:
            type: integer(11)
            notnull: true
            autoincrement: true
            primary: true
            unsigned: true
        category_id:
            type: integer(11)
            notnull: true
            unsigned: true
        name:
            type: string(255)
    relations:
        Category:
            local: category_id
            foreign: id
            type: one
            foreignAlias: Items