Relations
typescript
const models = {
book: defineModel({
schema: {
title: { type: String }
},
belongsTo: {
author: () => 'author'
}
}),
author: defineModel({
schema: {
name: { type: String }
},
hasMany: {
books: () => 'book'
}
})
}
Setting the inverse
Sometimes a model relates to the same model multiple times. To help automate updates across the mock db, you can specify the inverse relationship, like in the example below
typescript
const models = {
user: defineModel({
schema: {
name: { type: String }
},
hasMany: {
outgoingMessages: () => 'message',
ingoingMessages: () => 'message',
},
inverse: {
outgoingMessages: 'sender',
ingoingMessages: 'recipient',
}
}),
message: defineModel({
schema: {
name: { type: String }
},
belongsTo: {
sender: () => 'user',
recipient: () => 'user',
},
inverse: {
sender: 'outgoingMessages',
recipient: 'ingoingMessages',
}
})
}
Setting sender on a message, will now only update the users outgoingMessages