sequelize-typescript
Version:
Decorators and some other features for sequelize
54 lines • 1.96 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.addAttributeOptions = exports.addAttribute = exports.setAttributes = exports.getAttributes = void 0;
const object_1 = require("../../shared/object");
const ATTRIBUTES_KEY = 'sequelize:attributes';
/**
* Returns model attributes from class by restoring this
* information from reflect metadata
*/
function getAttributes(target) {
const attributes = Reflect.getMetadata(ATTRIBUTES_KEY, target);
if (attributes) {
return Object.keys(attributes).reduce((copy, key) => {
copy[key] = Object.assign({}, attributes[key]);
return copy;
}, {});
}
}
exports.getAttributes = getAttributes;
/**
* Sets attributes
*/
function setAttributes(target, attributes) {
Reflect.defineMetadata(ATTRIBUTES_KEY, Object.assign({}, attributes), target);
}
exports.setAttributes = setAttributes;
/**
* Adds model attribute by specified property name and
* sequelize attribute options and stores this information
* through reflect metadata
*/
function addAttribute(target, name, options) {
let attributes = getAttributes(target);
if (!attributes) {
attributes = {};
}
attributes[name] = Object.assign({}, options);
setAttributes(target, attributes);
}
exports.addAttribute = addAttribute;
/**
* Adds attribute options for specific attribute
*/
function addAttributeOptions(target, propertyName, options) {
const attributes = getAttributes(target);
if (!attributes || !attributes[propertyName]) {
throw new Error(`@Column annotation is missing for "${propertyName}" of class "${target.constructor.name}"` +
` or annotation order is wrong.`);
}
attributes[propertyName] = (0, object_1.deepAssign)(attributes[propertyName], options);
setAttributes(target, attributes);
}
exports.addAttributeOptions = addAttributeOptions;
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