all files / lib/offshore/utils/ transformations.js

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/**
 * Transformations
 */
 
var Transformations = module.exports = {};
 
// Add JSON Transformation methods
Transformations.json = {};
 
/**
 * Write Method Transformations
 *
 * Used to stream back valid JSON from Offshore
 */
 
Transformations.json.write = function(model, index, cb) {
  var transformedModel;
 
  Eif (!model) transformedModel = '';
 
  // Transform to JSON
  Iif (model) {
    try {
      transformedModel = JSON.stringify(model);
    } catch (e) {
      return cb(e);
    }
  }
 
  // Prefix with opening [
  Eif (index === 0) { transformedModel = '['; }
 
  // Prefix with comma after first model
  Iif (index > 1) transformedModel = ',' + transformedModel;
 
  cb(null, transformedModel);
};
 
/**
 * Close off JSON Array
 */
Transformations.json.end = function(cb) {
  var suffix = ']';
  cb(null, suffix);
};