org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/request/node_modules/http-signature/node_modules/jsprim/node_modules/json-schema/lib/links.js

   1 /**
   2  * JSON Schema link handler
   3  * Copyright (c) 2007 Kris Zyp SitePen (www.sitepen.com)
   4  * Licensed under the MIT (MIT-LICENSE.txt) license.
   5  */
   6 ({define:typeof define!="undefined"?define:function(deps, factory){module.exports = factory();}}).
   7 define([], function(){
   8 var exports = {};
   9 exports.cacheLinks = true;
  10 exports.getLink = function(relation, instance, schema){
  11         // gets the URI of the link for the given relation based on the instance and schema
  12         // for example:
  13         // getLink(
  14         //              "brother",
  15         //              {"brother_id":33},
  16         //              {links:[{rel:"brother", href:"Brother/{brother_id}"}]}) ->
  17         //      "Brother/33"
  18         var links = schema.__linkTemplates;
  19         if(!links){
  20                 links = {};
  21                 var schemaLinks = schema.links;
  22                 if(schemaLinks && schemaLinks instanceof Array){
  23                         schemaLinks.forEach(function(link){
  24         /*                      // TODO: allow for multiple same-name relations
  25                                 if(links[link.rel]){
  26                                         if(!(links[link.rel] instanceof Array)){
  27                                                 links[link.rel] = [links[link.rel]];
  28                                         }
  29                                 }*/
  30                                 links[link.rel] = link.href;
  31                         });
  32                 }
  33                 if(exports.cacheLinks){
  34                         schema.__linkTemplates = links;
  35                 }
  36         }
  37         var linkTemplate = links[relation];
  38         return linkTemplate && exports.substitute(linkTemplate, instance);
  39 };
  40
  41 exports.substitute = function(linkTemplate, instance){
  42         return linkTemplate.replace(/\{([^\}]*)\}/g, function(t, property){
  43                         var value = instance[decodeURIComponent(property)];
  44                         if(value instanceof Array){
  45                                 // the value is an array, it should produce a URI like /Table/(4,5,8) and store.get() should handle that as an array of values
  46                                 return '(' + value.join(',') + ')';
  47                         }
  48                         return value;
  49                 });
  50 };
  51 return exports;
  52 });