Search for multiple values with can-connect

1

Is it possible to search for multiple values using can-connect? For example if I want to get all Todo’s with status ‘open’ or ‘in-progress’ I would like to do something like:

Todo.getList({ status: ['open', 'in-progress'] })

Or if I wanted to get a bunch of Todo’s by id:

Todo.getList({ id: [1,3,4,6] })

Is there a way to do this with can-connect? The above will work once, but once you start requesting multiple lists errors start to occur:

unhandledRejection.js:23 Potentially unhandled rejection [3] TypeError: Cannot read property 'id' of undefined
    at Object.id (http://localhost:8080/node_modules/can-connect/src/can-connect.js:181:22)
    at http://localhost:8080/node_modules/can-connect/src/data/localstorage-cache/localstorage-cache.js:141:19
    at Array.map (native)
    at Object.updateSet (http://localhost:8080/node_modules/can-connect/src/data/localstorage-cache/localstorage-cache.js:140:18)
    at http://localhost:8080/node_modules/can-connect/src/data/localstorage-cache/localstorage-cache.js:358:12
    at http://localhost:8080/node_modules/can-zone/lib/tasks.js:109:15
    at Task.run (http://localhost:8080/node_modules/can-zone/lib/zone.js:39:17)
    at Zone.runTask (http://localhost:8080/node_modules/can-zone/lib/zone.js:176:14)
    at http://localhost:8080/node_modules/can-zone/lib/zone.js:270:15
    at http://localhost:8080/node_modules/can-zone/lib/tasks.js:121:21(anonymous function) @ unhandledRejection.js:23report @ unhandledRejection.js:50flush @ unhandledRejection.js:72
unhandledRejection.js:23 Potentially unhandled rejection [5] TypeError: Cannot read property 'id' of undefined
    at Object.id (http://localhost:8080/node_modules/can-connect/src/can-connect.js:181:22)
    at http://localhost:8080/node_modules/can-connect/src/data/localstorage-cache/localstorage-cache.js:141:19
    at Array.map (native)
    at Object.updateSet (http://localhost:8080/node_modules/can-connect/src/data/localstorage-cache/localstorage-cache.js:140:18)
    at http://localhost:8080/node_modules/can-connect/src/data/localstorage-cache/localstorage-cache.js:358:12
    at http://localhost:8080/node_modules/can-zone/lib/tasks.js:109:15
    at Task.run (http://localhost:8080/node_modules/can-zone/lib/zone.js:39:17)
    at Zone.runTask (http://localhost:8080/node_modules/can-zone/lib/zone.js:176:14)
    at http://localhost:8080/node_modules/can-zone/lib/zone.js:270:15
    at http://localhost:8080/node_modules/can-zone/lib/tasks.js:121:21(anonymous function) @ unhandledRejection.js:23report @ unhandledRejection.js:50flush @ unhandledRejection.js:72
unhandledRejection.js:23 Potentially unhandled rejection [7] TypeError: Cannot read property 'length' of undefined
    at Object.hydrateList (http://localhost:8080/node_modules/can-connect/src/constructor/constructor.js:204:36)
    at Object.hydrateList (http://localhost:8080/node_modules/can-connect/src/constructor/store/store.js:449:39)
    at Object.hydrateList (http://localhost:8080/node_modules/can-connect/src/fall-through-cache/fall-through-cache.js:98:39)
    at http://localhost:8080/node_modules/can-connect/src/constructor/constructor.js:176:17
    at http://localhost:8080/node_modules/can-zone/lib/tasks.js:109:15
    at Task.run (http://localhost:8080/node_modules/can-zone/lib/zone.js:39:17)
    at Zone.runTask (http://localhost:8080/node_modules/can-zone/lib/zone.js:176:14)
    at http://localhost:8080/node_modules/can-zone/lib/zone.js:270:15
    at http://localhost:8080/node_modules/can-zone/lib/tasks.js:121:21
    at http://localhost:8080/node_modules/can-zone/lib/tasks.js:109:15(anonymous function) @ unhandledRejection.js:23report @ unhandledRejection.js:50flush @ unhandledRejection.js:72
unhandledRejection.js:23 Potentially unhandled rejection [8] TypeError: Cannot read property 'length' of undefined
    at Object.hydrateList (http://localhost:8080/node_modules/can-connect/src/constructor/constructor.js:204:36)
    at Object.hydrateList (http://localhost:8080/node_modules/can-connect/src/constructor/store/store.js:449:39)
    at Object.hydrateList (http://localhost:8080/node_modules/can-connect/src/fall-through-cache/fall-through-cache.js:98:39)
    at http://localhost:8080/node_modules/can-connect/src/constructor/constructor.js:176:17
    at http://localhost:8080/node_modules/can-zone/lib/tasks.js:109:15
    at Task.run (http://localhost:8080/node_modules/can-zone/lib/zone.js:39:17)
    at Zone.runTask (http://localhost:8080/node_modules/can-zone/lib/zone.js:176:14)
    at http://localhost:8080/node_modules/can-zone/lib/zone.js:270:15
    at http://localhost:8080/node_modules/can-zone/lib/tasks.js:121:21
    at http://localhost:8080/node_modules/can-zone/lib/tasks.js:109:15
2

I’ve narrowed this down to an issue with the combine-requests behavior. When requesting multiple lists combine-requests does a union of the sets. For example with the two requests

Todo.getList({ id: [1,2,3] })
Todo.getList({ id: [4,5,6] })

can.set.union seems to correctly union the sets as { id: [1,2,3,4,5,6 ] } but somehow I guess this behavior is not expected by combine-requests so it is breaking. An undefined value is then passed to hydrateList hence the errors above.