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contexts_response_Response.js.html
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contexts_response_Response.js.html
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<h1>contexts/response/Response.js</h1>
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<pre class="prettyprint source linenums"><code>import { createLog } from '../../infrastructure/log/createLog'
import { onServerExec } from '../../infrastructure/arch/onServerExec'
import { getCollection } from '../../api/utils/getCollection'
import { Integer, oneOf } from '../../infrastructure/factories/createSchema'
/**
* Represents a db collection that stores a (scored) response to an item on a
* page of a given unit.
*
* It is design to allow the complete association between a user's response
* (`scores.$.value`), a given unit and the related competencies.
*
* @category contexts
* @namespace
*/
export const Response = {
name: 'response'
}
const log = createLog({ name: Response.name })
/**
* The database schema
*/
Response.schema = {
userId: String,
sessionId: String,
unitSetId: String,
unitId: String,
dimensionId: String,
timeStamp: Date,
page: Number,
itemId: String,
itemType: String,
scores: Array,
'scores.$': Object,
'scores.$.target': {
type: Number,
optional: true
},
'scores.$.competency': Array,
'scores.$.competency.$': String,
'scores.$.correctResponse': Array,
'scores.$.correctResponse.$': {
type: oneOf(String, Integer, RegExp)
},
'scores.$.isUndefined': Boolean,
'scores.$.score': Boolean,
'scores.$.value': Array,
'scores.$.value.$': {
type: oneOf(String, Integer)
}
}
/**
* Counts all answer scores of a given unit that were scored as true
* (accomplished).
*
* @param userId {string} the _id of the associated user
* @param sessionId {string} the _id of the associated session
* @param unitId {string} the _id of the associated unit
* @return {number} the overall count of accomplished answers
*/
Response.countAccomplishedAnswers = ({ userId, sessionId, unitId }) => {
log('count accomplished answers', { userId, sessionId, unitId })
const allDocsByUnit = getCollection(Response.name).find({ userId, sessionId, unitId })
let count = 0
allDocsByUnit.forEach(responseDoc => {
responseDoc.scores.forEach(entry => {
if (entry.score) {
const competency = Array.isArray(entry.competency)
? entry.competency
: entry.competency
? [entry.competency]
: []
// since there are more than once competencies
// available for a single score entry, we need
// to count them all!
count += competency.length
}
})
})
return count
}
/**
* Meteor Method endpoints.
*/
Response.methods = {}
const { timeStamp, userId, ...submitSchema } = Response.schema
/**
* Inserts or updates a given user response in relation to the current session, unit and page.
*/
Response.methods.submit = {
name: 'response.methods.submit',
schema: submitSchema,
run: onServerExec(function () {
return function (responseDoc) {
responseDoc.timeStamp = new Date()
responseDoc.userId = this.userId
const modifier = { $set: responseDoc }
const selector = {
userId: this.userId,
sessionId: responseDoc.sessionId,
unitId: responseDoc.unit,
page: responseDoc.page
}
return getCollection(Response.name).upsert(selector, modifier)
}
})
}
</code></pre>
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