unleash.unleash/packages/unleash-api/lib/db/event.js

var EVENT_COLUMNS = ['id', 'type', 'created_by', 'created_at', 'data'];

module.exports = function(db) {
    function storeEvent(event) {
        return db('events').insert({
            type: event.type,
            created_by: event.createdBy, // eslint-disable-line
            data: event.data
        });
    }

    function getEvents() {
        return db
            .select(EVENT_COLUMNS)
            .from('events')
            .orderBy('created_at', 'desc')
            .map(rowToEvent);
    }

    function getEventsFilterByName(name) {
        return db
        .select(EVENT_COLUMNS)
        .from('events')
        .whereRaw("data ->> 'name' = ?", [name])
        .orderBy('created_at', 'desc')
        .map(rowToEvent);
    }

    function rowToEvent(row) {
        return {
            id: row.id,
            type: row.type,
            createdBy: row.created_by,
            createdAt: row.created_at,
            data: row.data
        };
    }

    return {
        store: storeEvent,
        getEvents: getEvents,
        getEventsFilterByName: getEventsFilterByName
    };
};