@missive/ndex/dist/ndex.min.js

Ndex is an indexedDB wrapper

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o&&n.push(t);return n}.call(this),n.forEach(function(e){return function(t){if("index"!==t)return e[t]=function(){return e.handleMethod.apply(e,[t].concat(r.call(arguments)))}}}(this))},e.prototype.index=function(e,t){return this.connection.createNamespaceForIndex(t,e,this)},e.prototype.handleLog=function(e){var t,n;if(this.handler){if(this.handler!==console)return this.handler(e);switch(n=e.type,t=e.data,n){case"transaction.start":return console.groupCollapsed(t);case"request":return console.log(t);case"transaction.end":return console.groupEnd()}}},e.prototype.proxyObjectStoresNamespace=function(e){return this.connection.createNamespaceForObjectStores(e,this)},e}(),e.exports=n},function(e,t,n){var r,o,a,i,s=function(e,t){return function(){return e.apply(t,arguments)}},u=function(e,t){function n(){this.constructor=e}for(var r in t)c.call(t,r)&&(e[r]=t[r]);return n.prototype=t.prototype,e.prototype=new n,e.__super__=t.prototype,e},c={}.hasOwnProperty,l=[].slice;r=n(3),o=n(5),i=n(6),a=function(e){function t(){this.handleMessage=s(this.handleMessage,this),t.__super__.constructor.apply(this,arguments),this.promises={},this.messages=[],this.id=1,this.spawnWorker()}return u(t,e),t.prototype.spawnWorker=function(){var e,t,n,r,a;return a=this.connection,r=a.name,n=a.migrations,e=new Blob([o,i]),t=window.URL.createObjectURL(e),this.worker=new Worker(t),this.worker.onmessage=this.handleMessage,this.worker.postMessage({method:"init",args:{name:r,migrations:n}}),console.info("Ndex: Worker for “"+r+"” spawned at "+t)},t.prototype.handleLogging=function(e){return this.handler=e,this.worker.postMessage({method:"handleLogging"})},t.prototype.createPromiseForId=function(e){return new Promise(function(t){return function(n,r){return t.promises[e]={id:e,resolve:n,reject:r}}}(this))},t.prototype.handleMethod=function(){var e,t,n,r;return n=arguments[0],e=2<=arguments.length?l.call(arguments,1):[],t=this.id++,r=this.createPromiseForId(t),this.messages.length||this.schedulePostMessage(),this.messages.push({id:t,method:n,args:e}),r},t.prototype.schedulePostMessage=function(){return setTimeout(function(e){return function(){var t;return t=e.messages.splice(0),e.worker.postMessage(t)}}(this),0)},t.prototype.handleMessage=function(e){var t,n,r,o,a,i,s;return a=e.data,n=a.id,s=a.resolve,i=a.reject,r=a.method,t=a.args,r?this[r](t):(o=this.promises[n],delete this.promises[n],"resolve"in e.data?o.resolve(s):o.reject(new Error(i)))},t}(r),e.exports=a},function(e,t){e.exports="var factory,\n  slice = [].slice;\n\nfactory = function() {\n  var Connection;\n  Connection = {};\n  Connection.API = (function() {\n    API.prototype.CONNECTION_TIMEOUT = 5000;\n\n    API.prototype.REQUEST_TIMEOUT = 5000;\n\n    function API(name1, migrations1, options1) {\n      this.name = name1;\n      this.migrations = migrations1;\n      this.options = options1 != null ? options1 : {};\n      this.database = null;\n      this.queue = {};\n      this.logging = new Connection.Logging;\n    }\n\n    API.prototype.parseMigrations = function(migrations) {\n      var keys, version;\n      if (version = migrations.version) {\n        this.version = version;\n        delete migrations.version;\n      }\n      keys = Object.keys(migrations).sort();\n      return keys.map((function(_this) {\n        return function(key) {\n          var actions, title, titleMatches;\n          version = parseInt(key);\n          titleMatches = key.match(/_(.+)/);\n          title = titleMatches ? titleMatches[1].replace(/(\\w)([A-Z])/g, function($1, $2, $3) {\n            return $2 + \" \" + ($3.toLowerCase());\n          }) : '';\n          actions = migrations[key] || [];\n          if (!Array.isArray(actions)) {\n            actions = [actions];\n          }\n          return {\n            version: version,\n            title: title,\n            actions: actions,\n            key: key\n          };\n        };\n      })(this));\n    };\n\n    API.prototype.deleteDatabase = function() {\n      return new Promise((function(_this) {\n        return function(resolve) {\n          var request;\n          if (!_this.database) {\n            return resolve();\n          }\n          _this.close();\n          request = indexedDB.deleteDatabase(_this.database.name);\n          return request.onsuccess = function(e) {\n            return setTimeout((function() {\n              return resolve();\n            }), 0);\n          };\n        };\n      })(this));\n    };\n\n    API.prototype.open = function(arg) {\n      var withoutVersion;\n      withoutVersion = (arg != null ? arg : {}).withoutVersion;\n      if (this.dbPromise) {\n        return this.dbPromise;\n      }\n      return this.dbPromise = new Promise((function(_this) {\n        return function(resolve, reject) {\n          var connectionTimeout, e, migrations, ref, request, version;\n          if (!self.indexedDB) {\n            return reject('indexedDB isn’t supported');\n          }\n          migrations = _this.parseMigrations(_this.migrations);\n          try {\n            version = withoutVersion ? void 0 : _this.version || migrations.length + 1;\n            request = indexedDB.open(_this.name, version);\n            connectionTimeout = (ref = _this.options.connectionTimeout) != null ? ref : _this.CONNECTION_TIMEOUT;\n            if ((connectionTimeout != null) && connectionTimeout > -1) {\n              request.__timeout = setTimeout(function() {\n                if (request.__handled) {\n                  return;\n                }\n                request.__timedout = true;\n                return reject(new Error('Connection timed out'));\n              }, connectionTimeout);\n            }\n          } catch (error1) {\n            e = error1;\n            clearTimeout(request.__timeout);\n            if (request.__timedout) {\n              return;\n            }\n            request.__handled = true;\n            return reject(e.message || e.name);\n          }\n          request.onupgradeneeded = function(e) {\n            var action, db, j, l, len, len1, migration, migrationTransaction, name1, ref1, results1, transaction;\n            clearTimeout(request.__timeout);\n            if (request.__timedout) {\n              return;\n            }\n            request.__handled = true;\n            db = e.target.result;\n            transaction = e.target.transaction;\n            migrationTransaction = new Connection.Migration(db, transaction);\n            migrationTransaction.createObjectStore('migrations', {\n              keyPath: 'version'\n            });\n            results1 = [];\n            for (j = 0, len = migrations.length; j < len; j++) {\n              migration = migrations[j];\n              ref1 = migration.actions;\n              for (l = 0, len1 = ref1.length; l < len1; l++) {\n                action = ref1[l];\n                if (typeof migrationTransaction[name1 = action.type] === \"function\") {\n                  migrationTransaction[name1].apply(migrationTransaction, action.args);\n                }\n              }\n              results1.push(transaction.objectStore('migrations').put(migration));\n            }\n            return results1;\n          };\n          request.onsuccess = function(e) {\n            var db, objectStoreNames;\n            clearTimeout(request.__timeout);\n            if (request.__timedout) {\n              return;\n            }\n            request.__handled = true;\n            db = e.target.result;\n            objectStoreNames = [].slice.call(db.objectStoreNames);\n            _this.createNamespaceForObjectStores(objectStoreNames);\n            db.onversionchange = function() {\n              return _this.close();\n            };\n            _this.database = db;\n            return resolve(objectStoreNames);\n          };\n          return request.onerror = function(e) {\n            clearTimeout(request.__timeout);\n            if (request.__timedout) {\n              return;\n            }\n            request.__handled = true;\n            if (!withoutVersion && request.error.name === 'VersionError') {\n              _this.close();\n              return _this.open({\n                withoutVersion: true\n              }).then(resolve)[\"catch\"](reject);\n            }\n            return reject(request.error.message || request.error.name);\n          };\n        };\n      })(this));\n    };\n\n    API.prototype.close = function() {\n      if (this.dbPromise) {\n        delete this.dbPromise;\n      }\n      if (this.database) {\n        return this.database.close();\n      }\n    };\n\n    API.prototype.get = function(objectStoreName, key, indexName) {\n      return new Promise((function(_this) {\n        return function(resolve, reject) {\n          if (Array.isArray(key)) {\n            return Promise.all(key.map(function(k) {\n              return _this.get(objectStoreName, k);\n            })).then(resolve)[\"catch\"](reject);\n          } else {\n            return _this.enqueue('read', objectStoreName, reject, function(transaction) {\n              var params;\n              _this.logging.addRequest(transaction, 'get', objectStoreName, indexName, {\n                key: key\n              });\n              params = {\n                method: 'get',\n                args: key,\n                transaction: transaction,\n                reject: reject,\n                objectStoreName: objectStoreName,\n                indexName: indexName\n              };\n              return _this.createRequest(params, function(e) {\n                var value;\n                value = e.target.result;\n                if (value === void 0) {\n                  value = null;\n                }\n                return resolve(value);\n              });\n            });\n          }\n        };\n      })(this));\n    };\n\n    API.prototype.getFirst = function(objectStoreName, indexName) {\n      return new Promise((function(_this) {\n        return function(resolve, reject) {\n          return _this.enqueue('read', objectStoreName, reject, function(transaction) {\n            var params;\n            _this.logging.addRequest(transaction, 'getFirst', objectStoreName, indexName);\n            params = {\n              method: 'openCursor',\n              transaction: transaction,\n              reject: reject,\n              objectStoreName: objectStoreName,\n              indexName: indexName\n            };\n            return _this.createRequest(params, function(e) {\n              var cursor, objectStore, request, value;\n              request = e.target;\n              objectStore = request.source;\n              if (!(cursor = request.result)) {\n                return resolve(null);\n              }\n              value = cursor.value;\n              if (!objectStore.keyPath) {\n                value._key = cursor.key;\n              }\n              return resolve(value);\n            });\n          });\n        };\n      })(this));\n    };\n\n    API.prototype.getAll = function(objectStoreName, indexName) {\n      return new Promise((function(_this) {\n        return function(resolve, reject) {\n          return _this.enqueue('read', objectStoreName, reject, function(transaction) {\n            var params, results;\n            _this.logging.addRequest(transaction, 'getAll', objectStoreName, indexName);\n            results = [];\n            params = {\n              method: 'openCursor',\n              transaction: transaction,\n              reject: reject,\n              objectStoreName: objectStoreName,\n              indexName: indexName\n            };\n            return _this.createRequest(params, function(e) {\n              var cursor, objectStore, request, value;\n              request = e.target;\n              objectStore = request.source;\n              if (!(cursor = e.target.result)) {\n                return resolve(results);\n              }\n              value = cursor.value;\n              if (!objectStore.keyPath) {\n                value._key = cursor.key;\n              }\n              results.push(value);\n              return cursor[\"continue\"]();\n            });\n          });\n        };\n      })(this));\n    };\n\n    API.prototype.count = function(objectStoreName, indexName) {\n      return new Promise((function(_this) {\n        return function(resolve, reject) {\n          return _this.enqueue('read', objectStoreName, reject, function(transaction) {\n            var params;\n            _this.logging.addRequest(transaction, 'count', objectStoreName, indexName);\n            params = {\n              method: 'count',\n              transaction: transaction,\n              reject: reject,\n              objectStoreName: objectStoreName,\n              indexName: indexName\n            };\n            return _this.createRequest(params, function(e) {\n              var value;\n              value = e.target.result;\n              if (!value) {\n                value = 0;\n              }\n              return resolve(value);\n            });\n          });\n        };\n      })(this));\n    };\n\n    API.prototype.add = function(objectStoreName, key, data) {\n      var ref;\n      if (data === void 0) {\n        ref = [null, key], key = ref[0], data = ref[1];\n      }\n      return new Promise((function(_this) {\n        return function(resolve, reject) {\n          if (!key && Array.isArray(data)) {\n            return Promise.all(data.map(function(d) {\n              return _this.add(objectStoreName, d);\n            })).then(resolve)[\"catch\"](reject);\n          } else if (key && Array.isArray(key) && Array.isArray(data)) {\n            return Promise.all(key.map(function(key, i) {\n              return _this.add(objectStoreName, key, data[i]);\n            })).then(resolve)[\"catch\"](reject);\n          } else {\n            return _this.enqueue('write', objectStoreName, reject, function(transaction) {\n              var args, params;\n              _this.logging.addRequest(transaction, 'add', objectStoreName, null, {\n                key: key,\n                data: data\n              });\n              args = key ? [data, key] : [data];\n              params = {\n                method: 'put',\n                args: args,\n                transaction: transaction,\n                objectStoreName: objectStoreName,\n                reject: reject\n              };\n              return _this.createRequest(params, function(e) {\n                data._key = e.target.result;\n                return resolve(data);\n              });\n            });\n          }\n        };\n      })(this));\n    };\n\n    API.prototype.update = function(objectStoreName, key, value) {\n      return new Promise((function(_this) {\n        return function(resolve, reject) {\n          return _this.enqueue('write', objectStoreName, reject, function(transaction) {\n            var params;\n            _this.logging.addRequest(transaction, 'update', objectStoreName, null, {\n              key: key,\n              data: value\n            });\n            params = {\n              method: 'get',\n              args: key,\n              transaction: transaction,\n              objectStoreName: objectStoreName,\n              reject: reject\n            };\n            return _this.createRequest(params, function(e) {\n              var args, data, deepUpdate, hasKeyPath, keyPath, objectStore, request;\n              request = e.target;\n              objectStore = request.source;\n              keyPath = objectStore.keyPath;\n              hasKeyPath = !!keyPath;\n              data = request.result;\n              if (data === void 0) {\n                data = value;\n                if (hasKeyPath) {\n                  data[keyPath] = key;\n                }\n              } else {\n                deepUpdate = function(o, root) {\n                  var k, results1, v;\n                  results1 = [];\n                  for (k in o) {\n                    v = o[k];\n                    if (typeof v === 'object') {\n                      deepUpdate(v, root[k]);\n                      continue;\n                    }\n                    results1.push(root[k] = v);\n                  }\n                  return results1;\n                };\n                deepUpdate(value, data);\n              }\n              args = hasKeyPath ? [data] : [data, key];\n              params = {\n                method: 'put',\n                args: args,\n                transaction: transaction,\n                objectStoreName: objectStoreName,\n                reject: reject\n              };\n              return _this.createRequest(params, function(e) {\n                return resolve(data);\n              });\n            });\n          });\n        };\n      })(this));\n    };\n\n    API.prototype.increment = function(objectStoreName, key, value, decrement) {\n      if (value == null) {\n        value = 1;\n      }\n      return new Promise((function(_this) {\n        return function(resolve, reject) {\n          return _this.enqueue('write', objectStoreName, reject, function(transaction) {\n            var params;\n            _this.logging.addRequest(transaction, (decrement ? 'decrement' : 'increment'), objectStoreName, null, {\n              key: key,\n              data: value\n            });\n            params = {\n              method: 'get',\n              args: key,\n              transaction: transaction,\n              objectStoreName: objectStoreName,\n              reject: reject\n            };\n            return _this.createRequest(params, function(e) {\n              var args, data, deepIncrement, hasKeyPath, keyPath, objectStore, request;\n              request = e.target;\n              objectStore = request.source;\n              keyPath = objectStore.keyPath;\n              hasKeyPath = !!keyPath;\n              data = request.result;\n              if (hasKeyPath) {\n                deepIncrement = function(o, root) {\n                  var k, results1, v;\n                  results1 = [];\n                  for (k in o) {\n                    v = o[k];\n                    if (typeof v === 'object') {\n                      deepIncrement(v, root[k]);\n                      continue;\n                    }\n                    root[k] || (root[k] = 0);\n                    results1.push(root[k] += decrement ? -v : v);\n                  }\n                  return results1;\n                };\n                deepIncrement(value, data);\n              } else {\n                data || (data = 0);\n                data += decrement ? -value : value;\n              }\n              args = hasKeyPath ? [data] : [data, key];\n              params = {\n                method: 'put',\n                args: args,\n                transaction: transaction,\n                objectStoreName: objectStoreName,\n                reject: reject\n              };\n              return _this.createRequest(params, function(e) {\n                return resolve(data);\n              });\n            });\n          });\n        };\n      })(this));\n    };\n\n    API.prototype.decrement = function(objectStoreName, key, value) {\n      return this.increment(objectStoreName, key, value, true);\n    };\n\n    API.prototype[\"delete\"] = function(objectStoreName, key) {\n      return new Promise((function(_this) {\n        return function(resolve, reject) {\n          if (Array.isArray(key)) {\n            return Promise.all(key.map(function(k) {\n              return _this[\"delete\"](objectStoreName, k);\n            })).then(resolve)[\"catch\"](reject);\n          } else {\n            return _this.enqueue('write', objectStoreName, reject, function(transaction) {\n              var params;\n              _this.logging.addRequest(transaction, 'delete', objectStoreName, null, {\n                key: key\n              });\n              params = {\n                method: 'delete',\n                args: key,\n                transaction: transaction,\n                objectStoreName: objectStoreName,\n                reject: reject\n              };\n              return _this.createRequest(params, function(e) {\n                return resolve(key);\n              });\n            });\n          }\n        };\n      })(this));\n    };\n\n    API.prototype.deleteWhere = function(objectStoreName, predicates, indexName) {\n      predicates.remove = true;\n      return this.where(objectStoreName, predicates, indexName);\n    };\n\n    API.prototype.clear = function(objectStoreName) {\n      return new Promise((function(_this) {\n        return function(resolve, reject) {\n          return _this.enqueue('write', objectStoreName, reject, function(transaction) {\n            var params;\n            _this.logging.addRequest(transaction, 'clear', objectStoreName);\n            params = {\n              method: 'clear',\n              transaction: transaction,\n              objectStoreName: objectStoreName,\n              reject: reject\n            };\n            return _this.createRequest(params, function(e) {\n              return resolve();\n            });\n          });\n        };\n      })(this));\n    };\n\n    API.prototype.clearAll = function() {\n      return new Promise((function(_this) {\n        return function(resolve, reject) {\n          var objectStoreNames;\n          objectStoreNames = slice.call(_this.database.objectStoreNames);\n          objectStoreNames = objectStoreNames.filter(function(objectStoreName) {\n            return objectStoreName !== 'migrations';\n          });\n          return Promise.all(objectStoreNames.map(function(objectStoreName) {\n            return _this.clear(objectStoreName);\n          })).then(resolve)[\"catch\"](reject);\n        };\n      })(this));\n    };\n\n    API.prototype.reset = function(objectStoreName, key, data) {\n      return new Promise((function(_this) {\n        return function(resolve, reject) {\n          return _this.clear(objectStoreName).then(function() {\n            return _this.add(objectStoreName, key, data).then(resolve)[\"catch\"](reject);\n          })[\"catch\"](reject);\n        };\n      })(this));\n    };\n\n    API.prototype.index = function(objectStoreName, indexName) {\n      return this.createNamespaceForIndex(indexName, objectStoreName);\n    };\n\n    API.prototype.where = function(objectStoreName, predicates, indexName) {\n      var readWrite;\n      readWrite = predicates.remove ? 'write' : 'read';\n      return new Promise((function(_this) {\n        return function(resolve, reject) {\n          return _this.enqueue(readWrite, objectStoreName, reject, function(transaction) {\n            var args, bound, bounds, contains, count, eq, eqIsArray, exact, except, gt, gteq, hasValues, isEquivalent, isInclusive, isLowerBound, k, knownUniques, limit, lower, lt, lteq, offset, only, order, params, range, ref, remove, results, uniq, uniques, upper, v;\n            _this.logging.addRequest(transaction, 'where', objectStoreName, indexName, {\n              data: predicates\n            });\n            lt = predicates.lt, lteq = predicates.lteq, gt = predicates.gt, gteq = predicates.gteq, eq = predicates.eq, limit = predicates.limit, offset = predicates.offset, only = predicates.only, contains = predicates.contains, except = predicates.except, uniq = predicates.uniq, order = predicates.order, remove = predicates.remove;\n            uniques = Array.isArray(uniq) ? uniq : uniq ? [uniq] : [];\n            order = order === 'desc' ? 'prev' : 'next';\n            bounds = {};\n            ref = {\n              lt: lt,\n              lteq: lteq,\n              gt: gt,\n              gteq: gteq,\n              eq: eq\n            };\n            for (k in ref) {\n              v = ref[k];\n              if (v === void 0) {\n                continue;\n              }\n              isInclusive = k === 'gteq' || k === 'lteq';\n              isEquivalent = k === 'eq';\n              isLowerBound = k === 'gt' || k === 'gteq';\n              bound = isEquivalent ? 'exact' : isLowerBound ? 'lower' : 'upper';\n              bounds[bound] = {\n                value: v,\n                open: !isInclusive\n              };\n            }\n            range = null;\n            eqIsArray = false;\n            lower = bounds.lower, upper = bounds.upper, exact = bounds.exact;\n            if (exact) {\n              if (eqIsArray = Array.isArray(eq)) {\n                eq.sort();\n                lower = {\n                  value: eq[0],\n                  open: false\n                };\n                upper = {\n                  value: eq[eq.length - 1],\n                  open: false\n                };\n                range = IDBKeyRange.bound(lower.value, upper.value, lower.open, upper.open);\n              } else {\n                range = IDBKeyRange.only(exact.value);\n              }\n            } else if (lower && upper) {\n              range = IDBKeyRange.bound(lower.value, upper.value, lower.open, upper.open);\n            } else if (lower) {\n              range = IDBKeyRange.lowerBound(lower.value, lower.open);\n            } else if (upper) {\n              range = IDBKeyRange.upperBound(upper.value, upper.open);\n            }\n            results = [];\n            count = 0;\n            knownUniques = {};\n            hasValues = function(object, k, v) {\n              if (!Array.isArray(v)) {\n                v = [v];\n              }\n              return v.indexOf(object[k]) !== -1;\n            };\n            args = range ? [range, order] : void 0;\n            params = {\n              method: 'openCursor',\n              args: args,\n              transaction: transaction,\n              reject: reject,\n              objectStoreName: objectStoreName,\n              indexName: indexName\n            };\n            return _this.createRequest(params, function(e) {\n              var a, cursor, j, knownValues, len, objectStore, request, value;\n              request = e.target;\n              objectStore = request.source;\n              if (!(cursor = e.target.result)) {\n                return resolve(results);\n              }\n              value = cursor.value;\n              if (eqIsArray) {\n                only || (only = {});\n                only[objectStore.keyPath] = eq;\n              }\n              for (k in only) {\n                v = only[k];\n                if (!hasValues(value, k, v)) {\n                  return cursor[\"continue\"]();\n                }\n              }\n              for (k in contains) {\n                v = contains[k];\n                if (!Array.isArray(v)) {\n                  v = [v];\n                }\n                a = value[k];\n                if (!Array.isArray(a)) {\n                  a = [a];\n                }\n                if (!_this.intersect(a, v).length) {\n                  return cursor[\"continue\"]();\n                }\n              }\n              for (k in except) {\n                v = except[k];\n                if (hasValues(value, k, v)) {\n                  return cursor[\"continue\"]();\n                }\n              }\n              for (j = 0, len = uniques.length; j < len; j++) {\n                k = uniques[j];\n                knownValues = knownUniques[k] || (knownUniques[k] = []);\n                if (knownValues.indexOf(value[k]) !== -1) {\n                  return cursor[\"continue\"]();\n                }\n                knownUniques[k].push(value[k]);\n              }\n              count++;\n              if (offset && count <= offset) {\n                return cursor[\"continue\"]();\n              }\n              results.push(value);\n              if (remove) {\n                cursor[\"delete\"]();\n              }\n              if (limit) {\n                if (typeof limit === 'function' && limit(results)) {\n                  return resolve(results);\n                } else if (limit === results.length) {\n                  return resolve(results);\n                }\n              }\n              return cursor[\"continue\"]();\n            });\n          });\n        };\n      })(this));\n    };\n\n    API.prototype.getMethodsForObjectStore = function() {\n      return this._getMethodsForObjectStore || (this._getMethodsForObjectStore = ['get', 'getFirst', 'getAll', 'count', 'add', 'update', 'increment', 'decrement', 'delete', 'deleteWhere', 'clear', 'reset', 'index', 'where']);\n    };\n\n    API.prototype.getMethodsForIndex = function() {\n      return this._getMethodsForIndex || (this._getMethodsForIndex = ['get', 'getFirst', 'getAll', 'count', 'where', 'deleteWhere']);\n    };\n\n    API.prototype.createNamespaceForObjectStores = function(objectStoreNames, context) {\n      var j, len, objectStoreName, results1;\n      if (objectStoreNames == null) {\n        objectStoreNames = [];\n      }\n      if (context == null) {\n        context = this;\n      }\n      results1 = [];\n      for (j = 0, len = objectStoreNames.length; j < len; j++) {\n        objectStoreName = objectStoreNames[j];\n        if (objectStoreName === 'migrations') {\n          continue;\n        }\n        results1.push(this.createNamespaceForObjectStore(objectStoreName, context));\n      }\n      return results1;\n    };\n\n    API.prototype.createNamespaceForObjectStore = function(objectStoreName, context) {\n      var namespace;\n      if (context == null) {\n        context = this;\n      }\n      namespace = context[objectStoreName] = {};\n      this.getMethodsForObjectStore().forEach((function(_this) {\n        return function(method) {\n          return namespace[method] = function() {\n            return context[method].apply(context, [objectStoreName].concat(slice.call(arguments)));\n          };\n        };\n      })(this));\n      return namespace;\n    };\n\n    API.prototype.createNamespaceForIndex = function(indexName, objectStoreName, context) {\n      var namespace;\n      if (context == null) {\n        context = this;\n      }\n      namespace = {};\n      this.getMethodsForIndex().forEach((function(_this) {\n        return function(method) {\n          return namespace[method] = function() {\n            return context[method].apply(context, [objectStoreName].concat(slice.call(arguments), [indexName]));\n          };\n        };\n      })(this));\n      return namespace;\n    };\n\n    API.prototype.getObjectStore = function(arg) {\n      var indexName, objectStore, objectStoreName, transaction;\n      transaction = arg.transaction, objectStoreName = arg.objectStoreName, indexName = arg.indexName;\n      objectStore = transaction.objectStore(objectStoreName);\n      if (indexName) {\n        return objectStore.index(indexName);\n      } else {\n        return objectStore;\n      }\n    };\n\n    API.prototype.createRequest = function(arg, callback) {\n      var args, indexName, method, objectStore, objectStoreName, ref, reject, request, requestTimeout, transaction;\n      method = arg.method, args = arg.args, transaction = arg.transaction, objectStoreName = arg.objectStoreName, indexName = arg.indexName, reject = arg.reject;\n      objectStore = transaction.objectStore(objectStoreName);\n      if (indexName) {\n        objectStore = objectStore.index(indexName);\n      }\n      if (!Array.isArray(args)) {\n        args = [args];\n      }\n      request = objectStore[method].apply(objectStore, args);\n      requestTimeout = (ref = this.options.requestTimeout) != null ? ref : this.REQUEST_TIMEOUT;\n      if ((requestTimeout != null) && requestTimeout > -1) {\n        request.__timeout = setTimeout(function() {\n          if (request.__handled) {\n            return;\n          }\n          request.__timedout = true;\n          try {\n            return transaction.abort();\n          } catch (error1) {}\n        }, requestTimeout);\n      }\n      request.onsuccess = function(e) {\n        clearTimeout(request.__timeout);\n        if (request.__timedout) {\n          return;\n        }\n        request.__handled = true;\n        return callback(e);\n      };\n      request.onerror = function(e) {\n        clearTimeout(request.__timeout);\n        request.__handled = true;\n        return typeof reject === \"function\" ? reject(request.error) : void 0;\n      };\n      return request;\n    };\n\n    API.prototype.createTransaction = function(mode, objectStoreName, callback) {\n      return this.open().then((function(_this) {\n        return function() {\n          var error, transaction;\n          try {\n            transaction = _this.database.transaction([objectStoreName], mode);\n          } catch (error1) {\n            error = error1;\n          }\n          return callback(transaction);\n