mongo-sql/helpers/query/window.js

A mongo-like interface for sql generation, postgres-style

var helpers = require('../../lib/query-helpers');
var utils = require('../../lib/utils');

helpers.register( 'window', function(win, values, query) {
  var out = ['window'];

  if ( win.name ){
    out.push( utils.quoteObject( win.name ) );
  }

  if ( typeof win.as === 'object' ){
    out.push('as (');

    if ( win.as.existing ){
      out.push( utils.quoteObject( win.as.existing ) );
    } else {
      // Supported sub-types in window expression
      [
        'partition'
      , 'order'
      , 'groupBy'
      ].forEach( function( type ){
        if ( win.as[ type ] ){
          out.push( helpers.get( type ).fn( win.as[ type ], values, query ) );
        }
      });
    }

    out.push(')');
  }

  return out.join(' ');
});