Cohere

Declaratively define a schema with types and their associations with other types, then compile.

``js
// schema.js
import Schema, { hasMany, hasOne, belongsTo } from 'cohere';

export const schema = new Schema()

// create the user type
.defineType('user', {
attributes: {
name: true,
email: true,
},
relationships: {
blogs: hasMany('blog', 'author'),
},
})

// create the blog type
.defineType('blog', {
attributes: {
title: true,
content: true,
createdOn: true,
},
relationships: {
author: belongsTo('user', 'blogs'),
},
})

// link types together and hydrate every relationship's inverse
.compile();
`

Iterating over types, attributes, and relationships

The following iterators are supported for iterating over a type and its attributes/relationships:

* forEach
* map
* some
* every
* filter
* find
* reduce

`js
import schema from './schema.js';

schema.types.forEach(type => {
const { attributes, relationships } = type;

attributes.forEach(attribute => {
const { field, type: attrType } = attribute;
doSomething();
});

relationships.forEach(relationship => {
const { field, name, relation, inverse, ...options } = relationship;
doSomething();
});
});
``