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