codecombat/server/handlers/user_code_problem_handler.coffee
2016-04-07 09:40:53 -07:00

65 lines
2.4 KiB
CoffeeScript

UserCodeProblem = require './../models/UserCodeProblem'
Handler = require '../commons/Handler'
utils = require '../lib/utils'
class UserCodeProblemHandler extends Handler
modelClass: UserCodeProblem
jsonSchema: require '../../app/schemas/models/user_code_problem'
editableProperties: [
'code'
'codeSnippet'
'errHint'
'errId'
'errLevel'
'errMessage'
'errMessageNoLineInfo'
'errRange'
'errType'
'language'
'levelID'
]
makeNewInstance: (req) ->
ucp = super(req)
ucp.set('creator', req.user._id)
ucp
hasAccess: (req) ->
return true if req.user?.isAdmin()
return true if req.method.toLowerCase() is 'post'
false
getByRelationship: (req, res, args...) ->
return @sendForbiddenError res unless @hasAccess req
return @getCommonLevelProblemsBySlug(req, res) if args[1] is 'common_problems'
super(arguments...)
getCommonLevelProblemsBySlug: (req, res) ->
# Returns an ordered array of common user code problems with: language, message, hint, count
# Parameters:
# slug - level slug
# startDay - Inclusive, optional, e.g. '2014-12-14'
# endDay - Exclusive, optional, e.g. '2014-12-16'
levelSlug = req.query.slug or req.body.slug
startDay = req.query.startDay or req.body.startDay
endDay = req.query.endDay or req.body.endDay
return @sendSuccess res, [] unless levelSlug?
# Build query
match = if startDay? or endDay? then {$match: {$and: [levelID: levelSlug]}} else {$match: {levelID: levelSlug}}
match["$match"]["$and"].push _id: {$gte: utils.objectIdFromTimestamp(startDay + "T00:00:00.000Z")} if startDay?
match["$match"]["$and"].push _id: {$lt: utils.objectIdFromTimestamp(endDay + "T00:00:00.000Z")} if endDay?
limit = {$limit: 100000}
group = {"$group": {"_id": {"errMessage": "$errMessageNoLineInfo", "errHint": "$errHint", "language": "$language", "levelID": "$levelID"}, "count": {"$sum": 1}}}
sort = { $sort : { "_id.levelID": 1, count : -1, "_id.language": 1 } }
query = UserCodeProblem.aggregate match, limit, group, sort
query.cache(30 * 60 * 1000)
query.exec (err, data) =>
if err? then return @sendDatabaseError res, err
formatted = ({language: item._id.language, message: item._id.errMessage, hint: item._id.errHint, count: item.count} for item in data)
@sendSuccess res, formatted
module.exports = new UserCodeProblemHandler()