zettapi_client/lib/services/lookup.svc.js

Admin panel and client-side CRUD operations in angular to use with zettapi_server rest api to get started quickly in any CMS project.

app.service('$lookup', function (zapi, mySocket, $rootScope, $routeParams) {
  var lookup = {};
  var listeners = {};

  this.get = function (entity) {
    if (entity) {
      if (!lookup[entity]) lookup[entity] = [];
      return lookup[entity];
    }

    return lookup;
  };

  this.set = function (entity, data) {
    if (!entity) return console.log("$lookup.set failed for entity " + entity);

    var entityObj = zapi.entityMap[entity];
    if (!lookup[entity]) lookup[entity] = [];

    if (data instanceof Array) lookup[entity] = data;
    else {
      if (typeof data !== 'object') return console.log("$lookup.set failed for entity " + entity + " because data is not an object", data);

      var finder = function (entityObj) {
        if (entityObj) {
          var idField = entityObj.id || "_id";
          return function (item) {
            return item[idField] === data[idField];
          };
        }
        else {
          return function (item) {
            return item === data;
          };
        }
      };
      var index = lookup[entity].findIndex(finder(entityObj));
      if (index === -1) lookup[entity].push(data);
      else lookup[entity].splice(index, 1, data);
    }

    if (entityObj && !listeners[entity]) {
      listeners[entity] = true;
      var websocket;
      if (typeof entityObj.websocket !== 'function') websocket = entity;
      else websocket = entityObj.websocket($rootScope, $routeParams) + "." + entity;

      mySocket.forward(websocket + '.remove');
      mySocket.forward(websocket + '.new');
      mySocket.forward(websocket + '.edit');
    }

    return lookup[entity];
  };

  this.unset = function (entity, id) {
    var entityObj = zapi.entityMap[entity];
    var idField = entityObj ? (entityObj.id || "_id") : undefined;

    if (!lookup[entity]) lookup[entity] = [];
    var index = lookup[entity].findIndex(function (item) {
      return (idField ? item[idField] : item) == id;
    });

    if (index === -1) return lookup[entity];
    lookup[entity].splice(index, 1);

    return lookup[entity];
  };
});