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Adding pagination to knex.js
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| const config = require('./config') | |
| const knex = require('knex')(config.db) | |
| const QueryBuilder = require('knex/lib/query/builder') | |
| QueryBuilder.prototype.paginate = function ({ limit = 10, page = 1 }) { | |
| const offset = (page - 1) * limit | |
| return Promise.all([ | |
| this.clone().count('* as count').first(), | |
| this.offset(offset).limit(limit) | |
| ]) | |
| .then(([count, data]) => { | |
| const total = count.count | |
| return { | |
| total, | |
| limit, | |
| offset, | |
| from: offset + 1, | |
| to: offset + data.length, | |
| page, | |
| lastPage: Math.ceil(total / limit), | |
| data | |
| } | |
| }) | |
| } | |
| knex.queryBuilder = function () { | |
| return new QueryBuilder(knex.client) | |
| } | |
| module.exports = knex |
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