apeman-app-rest/lib/validating/validate_include.js

apeman app to handle restful endpoint.

/**
 * @function validateInclude
 */
'use strict'

const apemanerror = require('apemanerror')
const apemanmodel = require('apemanmodel')
const ApErrorCodes = apemanerror.ApErrorCodes

/** @lends validateInclude */
function validateInclude (model, include) {
  if (!include) {
    return null
  }
  const { associations } = model
  let invalidInclude = include.filter((include) => !associations[ include ])
  if (invalidInclude.length > 0) {
    let type = apemanmodel.toType(model)
    return validateInclude.includeError(type, invalidInclude, Object.keys(associations))
  } else {
    return null
  }
}

Object.assign(validateInclude, {
  includeError (forType, given, allowed) {
    let code = ApErrorCodes.RESOURCE_INCLUDE_ERROR
    return Object.assign(
      apemanerror.newError(code, '$querystring/include', {
        trigger: 'RestHandler',
        scope: { for: forType, given, allowed }
      }),
      { status: '400' }
    )
  }
})

module.exports = validateInclude