Maybe this is a simple fix, but I can't seem to figure out what I'm doing wrong here.
I have a table that lists all the states Model:
static get jsonSchema() {
return {
type: 'object',
properties: {
id: { type: 'integer' },
name: { type: 'string', minLength: 1, maxLength: 100 },
},
}
}
static get relationMappings() {
return {
users: {
relation: Model.HasManyRelation,
modelClass: User,
join: {
from: `${tableNames.state}.id`,
to: `${tableNames.user}.state_id`,
},
},
}
Migration:
await knex.schema.createTable(tableNames.state, (table) => {
table.increments().primary().notNullable()
table.string('name', 100).notNullable()
User table model:
static get jsonSchema() {
return {
type: 'object',
properties: {
id: { type: 'integer' },
first_name: { type: 'string', minLength: 1, maxLength: 100 },
last_name: { type: 'string', minLength: 1, maxLength: 100 },
state_id: { type: 'integer', default: null },
},
}
}
static get relationMappings() {
return {
state: {
relation: Model.BelongsToOneRelation,
modelClass: State,
join: {
from: `${tableNames.user}.state_id`,
to: `${tableNames.state}.id`,
},
}
}
}
User table migration:
await knex.schema
.createTable(tableNames.user, (table) => {
table.increments().primary().notNullable()
table.string('first_name', 100).notNullable()
table.string('last_name', 100).notNullable()
table.integer('state_id').unsigned()
table
.foreign('state_id')
.references('id')
.inTable(tableNames.state)
.onDelete('SET NULL')
})
Now the issue: I want the state_id column to be nullable, as in not every user will have a state assigned to them. But when I try inserting a user with no state_id, I get this: insert or update on table \"user\" violates foreign key constraint \"user_state_id_foreign\"
.
two things you are doing wrong
state_id: {type: ['integer', 'null']}
table.integer('state_id').unsigned().nullable()