sequelize-typescript
Version:
Decorators and some other features for sequelize
40 lines • 1.52 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.addFieldToIndex = exports.setIndexes = exports.getIndexes = void 0;
require("reflect-metadata");
const INDEXES_KEY = 'sequelize:indexes';
/**
* Returns model indexes from class by restoring this
* information from reflect metadata
*/
function getIndexes(target) {
const { named = {}, unnamed = [] } = Reflect.getMetadata(INDEXES_KEY, target) || {};
return { named: Object.assign({}, named), unnamed: [...unnamed] };
}
exports.getIndexes = getIndexes;
/**
* Sets indexes
*/
function setIndexes(target, indexes) {
Reflect.defineMetadata(INDEXES_KEY, indexes, target);
}
exports.setIndexes = setIndexes;
/**
* Adds field to index by sequelize index and index field options,
* and stores this information through reflect metadata. Returns index ID.
*/
function addFieldToIndex(target, fieldOptions, indexOptions, indexId) {
const indexes = getIndexes(target);
const chosenId = typeof indexId !== 'undefined' ? indexId : indexOptions.name || indexes.unnamed.length;
const indexStore = typeof chosenId === 'string' ? indexes.named : indexes.unnamed;
if (!indexStore[chosenId])
indexStore[chosenId] = Object.assign({}, indexOptions);
const index = indexStore[chosenId];
if (!index.fields)
index.fields = [];
index.fields.push(fieldOptions);
setIndexes(target, indexes);
return chosenId;
}
exports.addFieldToIndex = addFieldToIndex;
//# sourceMappingURL=index-service.js.map