zettapi_client/lib/services/entity.svc.js

Client side CRUD operations in angular to use with zettapi_server rest api to get started quickly in any CMS project

app.service('$entity', function ($http, $q, $translate, $routeParams, $util, $lookup, blockUI, zapi) {
  this.get = get;

  this.getByKey = function (entity, keyValuePair, callback, transform) {
    var entityObj = zapi.entityMap[entity];

    var db = typeof entityObj.db === "function" ? entityObj.db($routeParams) : (entity.db || "common");
    var url = zapi.serverUrl + '/api/' + entity + '/fetch/' + db;
    var httpOptions = { params: keyValuePair };

    if (typeof transform === 'function') httpOptions.transformResponse = transform;
    if (typeof callback !== 'function') return $http.get(url, httpOptions);

    $http.get(url, httpOptions).then(function (response) {
      callback(null, response);
    }).catch(function (response) {
      callback(response.data);
    });
  };

  this.add = function (entity, item) {
    var deferred = $q.defer();
    var entityObj = zapi.entityMap[entity];

    var next = typeof entityObj.beforeSave === 'function' ? entityObj.beforeSave : $util.skip;
    next(item, function (err) {
      if (err) {
        swal("Antes de gravar...", err, "info");
        return deferred.reject(err);
      }

      var db = typeof entityObj.db === "function" ? entityObj.db($routeParams) : (entity.db || "common");
      var id = entityObj.id || "_id";
      var url = zapi.serverUrl + '/api/' + entity + '/add/' + db + (item[id] ? '/' + item[id] : '');

      blockUI.start($translate.instant('api.entity.sendData'));
      var fd = new FormData();
      $util.setFormFiles(fd, item);
      fd.append('item', angular.toJson(item));

      $http.post(url, fd, { transformRequest: angular.identity, headers: { 'Content-Type': undefined } }).then(function (response) {
        if (item[id]) swal("Alterado", $translate.instant(entityObj.title) + $translate.instant('api.entity.newRecordSuccess'), "success");
        else swal("Criado", $translate.instant(entityObj.title) + $translate.instant('api.entity.editRecordSuccess'), "success");

        deferred.resolve(response);
      }).catch(function (response) {
        swal("Erro ao Guardar", response.data, "error");

        deferred.reject(response);
      }).finally(function () {
        blockUI.stop();
      });
    });

    return deferred.promise;
  };

  this.update = function (entity, id, fieldsToSet) {
    var entityObj = zapi.entityMap[entity];

    var db = typeof entityObj.db === "function" ? entityObj.db($routeParams) : (entity.db || "common");
    var url = zapi.serverUrl + "/api/" + entity + "/update/" + db + '/' + id;

    return $http.post(url, fieldsToSet);
  };

  this.remove = function (entity, item) {
    var deferred = $q.defer();
    var entityObj = zapi.entityMap[entity];

    blockUI.start($translate.instant('api.entity.checkRemove'));

    var db = typeof entityObj.db === "function" ? entityObj.db($routeParams) : (entity.db || "common");
    var id = entityObj.id || "_id";
    var url = zapi.serverUrl + '/api/' + entity + '/remove/' + db + '/' + item[id];

    $http.get(url).then(function (response) {
      swal("Removido", $translate.instant(entityObj.title) + $translate.instant('api.entity.deleteRecordSuccess'), "success");

      deferred.resolve(response);
    }).catch(function (response) {
      swal("Erro ao Remover", response.error ? response.error : response.data, "warning");

      deferred.reject(response);
    }).finally(function () {
      blockUI.stop();
    });

    return deferred.promise;
  };

  this.getMany = function (entityKeys, callback) {
    //defaults
    entityKeys = entityKeys || [];

    //validate
    if (!(entityKeys instanceof Array)) return callback("$entity.getMany: unexpected entityKeys type - must be Array");
    if (entityKeys.length === 0) return callback();
    var invalid = entityKeys.some(function (entityKey) {
      return typeof entityKey !== 'string';
    });
    if (invalid) return callback("$entity.getMany: unexpected entityKey type - must be string");

    //assemble promises
    var promises = entityKeys.map(function (entityKey) {
      if ($lookup.get(entityKey)) return $q.resolve();
      else return get(entityKey);
    });

    //resolve promises
    $q.all(promises).then(function (results) {
      results.forEach(function (result, i) {
        $lookup.set(entityKeys[i], result ? result.data : []);
      });

      callback(null, $lookup.get());
    }, function (response) {
      callback(response.data);
    });
  };

  function get(entity, id) {
    var entityObj = zapi.entityMap[entity];

    var db = typeof entityObj.db === "function" ? entityObj.db($routeParams) : (entity.db || "common");
    var url = zapi.serverUrl + '/api/' + entity + '/list/' + db + (id ? '/' + id : '');

    return $http.get(url);
  }
});