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Commit 9148266

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ThomasKranitsasThomasKranitsas
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re-write the groups service
1 parent 996958c commit 9148266

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‎src/services/groupsService.js‎

Lines changed: 82 additions & 102 deletions
Original file line numberDiff line numberDiff line change
@@ -3,14 +3,12 @@ const _ = require('lodash')
33
const util = require('util')
44
const helper = require('../common/helper')
55

6-
const QUERY_GET_ELIGIBILITY_ID = 'SELECT limit 1 * FROM contest_eligibility WHERE contest_id = %d'
7-
const QUERY_GET_SINGLE_ELIGIBILITY_ID = 'SELECT limit 1 * FROM contest_eligibility WHERE contest_id = %d AND group_id = %d'
8-
const QUERY_GET_GROUP_ELIGIBILITY_ID = 'SELECT limit 1 * FROM group_contest_eligibility WHERE contest_eligibility_id = %d AND group_id = %d'
9-
const QUERY_GET_GROUPS = 'SELECT group_id FROM group_contest_eligibility WHERE contest_eligibility_id = %d'
10-
const QUERY_GET_GROUPS_COUNT = 'SELECT count(*) as cnt FROM group_contest_eligibility WHERE contest_eligibility_id = %d'
6+
const QUERY_GET_CONTEST_ELIGIBILITIES_IDS = 'SELECT contest_eligibility_id FROM contest_eligibility WHERE contest_id = %d'
7+
const QUERY_INSERT_CONTEST_ELIGIBILITY = 'INSERT INTO contest_eligibility (contest_eligibility_id, contest_id, is_studio) VALUES(contest_eligibility_seq.NEXTVAL, ?, 0)'
118

12-
const QUERY_INSERT_CONTEST_ELIGIBILITY = 'INSERT INTO contest_eligibility (contest_eligibility_id, contest_id, is_studio, group_id) VALUES(contest_eligibility_seq.NEXTVAL, ?, 0, ?)'
9+
const QUERY_GET_GROUPS = 'SELECT contest_eligibility_id, group_id FROM group_contest_eligibility WHERE contest_eligibility_id in'
1310
const QUERY_INSERT_GROUP_CONTEST_ELIGIBILITY = 'INSERT INTO group_contest_eligibility (contest_eligibility_id, group_id) VALUES(?, ?)'
11+
1412
const QUERY_DELETE_GROUP_CONTEST_ELIGIBILITY = 'DELETE FROM group_contest_eligibility WHERE contest_eligibility_id = ? AND group_id = ?'
1513
const QUERY_DELETE_CONTEST_ELIGIBILITY = 'DELETE FROM contest_eligibility WHERE contest_eligibility_id = ?'
1614

@@ -26,15 +24,20 @@ async function prepare (connection, sql) {
2624
return Promise.promisifyAll(stmt)
2725
}
2826

27+
/**
28+
* Get groups for a challenge
29+
* @param {Number} challengeLegacyId the legacy challenge ID
30+
*/
2931
async function getGroupsForChallenge (challengeLegacyId) {
3032
// logger.debug(`Getting Groups for Challenge ${challengeLegacyId}`)
3133
const connection = await helper.getInformixConnection()
3234
let groupIds = []
3335
try {
3436
// await connection.beginTransactionAsync()
35-
const eligibilityId = await getChallengeEligibilityId(connection, challengeLegacyId)
36-
if (eligibilityId) {
37-
groupIds = await getGroupIdsForEligibilityId(connection, eligibilityId)
37+
const eligibilityIds = await getChallengeEligibilityIds(connection, challengeLegacyId)
38+
if (eligibilityIds && eligibilityIds.length > 0) {
39+
const groups = await getGroupsForEligibilityIds(connection, eligibilityIds)
40+
groupIds = _.map(groups, g => g.group_id)
3841
// logger.debug(`Groups Found for ${challengeLegacyId} - ${JSON.stringify(groupIds)}`)
3942
}
4043
// logger.debug(`No groups Found for ${challengeLegacyId}`)
@@ -49,23 +52,25 @@ async function getGroupsForChallenge (challengeLegacyId) {
4952
return groupIds
5053
}
5154

55+
/**
56+
* Add a group to a challenge
57+
* @param {Number} challengeLegacyId the legacy challenge ID
58+
* @param {Number} groupLegacyId the legacy group ID
59+
*/
5260
async function addGroupToChallenge (challengeLegacyId, groupLegacyId) {
61+
const existingGroups = await getGroupsForChallenge(challengeLegacyId)
62+
if (existingGroups.indexOf(groupLegacyId) > -1) {
63+
logger.info(`Group ${groupLegacyId} is already assigned to challenge ${challengeLegacyId}. Skipping...`)
64+
return
65+
}
5366
const connection = await helper.getInformixConnection()
5467

5568
try {
5669
await connection.beginTransactionAsync()
57-
let eligibilityId = await getChallengeEligibilityId(connection, challengeLegacyId, groupLegacyId)
58-
if (!eligibilityId) {
59-
eligibilityId = await createChallengeEligibilityRecord(connection, challengeLegacyId, groupLegacyId)
60-
}
61-
62-
const groupMappingExists = await groupEligbilityExists(connection, eligibilityId, groupLegacyId)
63-
if (groupMappingExists) {
64-
logger.warn(`Group Relation Already Exists for ${groupMappingExists} - ${eligibilityId} ${groupLegacyId}`)
65-
} else {
66-
await createGroupEligibilityRecord(connection, eligibilityId, groupLegacyId)
67-
}
68-
70+
// create eligibility entry
71+
const eligibilityId = await createContestEligibility(connection, challengeLegacyId)
72+
// create group association
73+
await createGroupContestEligibility(connection, eligibilityId, groupLegacyId)
6974
await connection.commitTransactionAsync()
7075
} catch (e) {
7176
logger.error(`Error in 'addGroupToChallenge' ${e}, rolling back transaction`)
@@ -77,28 +82,24 @@ async function addGroupToChallenge (challengeLegacyId, groupLegacyId) {
7782
}
7883
}
7984

85+
/**
86+
* Remove group from a challenge
87+
* @param {Number} challengeLegacyId the legacy challenge ID
88+
* @param {Number} groupLegacyId the group ID
89+
*/
8090
async function removeGroupFromChallenge (challengeLegacyId, groupLegacyId) {
8191
const connection = await helper.getInformixConnection()
8292

8393
try {
8494
await connection.beginTransactionAsync()
85-
const eligibilityId = await getChallengeEligibilityId(connection, challengeLegacyId, groupLegacyId)
86-
if (!eligibilityId) {
87-
throw new Error(`Eligibility not found for legacyId ${challengeLegacyId}`)
88-
}
89-
const groupEligibilityRecord = await groupEligbilityExists(connection, eligibilityId, groupLegacyId)
90-
91-
if (groupEligibilityRecord) {
92-
await deleteGroupEligibilityRecord(connection, eligibilityId, groupLegacyId)
93-
// logger.debug('Getting Groups Count')
94-
const { groupsCount } = await getCountOfGroupsInEligibilityRecord(connection, eligibilityId)
95-
// logger.debug(`${groupsCount} groups exist`)
96-
if (groupsCount <= 0) {
97-
logger.debug('No groups exist, deleting eligibility group')
98-
await deleteEligibilityRecord(connection, eligibilityId)
95+
const eligibilityIds = await getChallengeEligibilityIds(connection, challengeLegacyId)
96+
if (eligibilityIds && eligibilityIds.length > 0) {
97+
const groups = await getGroupsForEligibilityIds(connection, eligibilityIds)
98+
const groupToRemove = _.find(groups, g => group_id === groupLegacyId)
99+
if (groupToRemove) {
100+
await clearData(groupToRemove.contest_eligibility_id, groupToRemove.group_id)
99101
}
100102
}
101-
102103
await connection.commitTransactionAsync()
103104
} catch (e) {
104105
logger.error(`Error in 'removeGroupFromChallenge' ${e}, rolling back transaction`)
@@ -111,86 +112,65 @@ async function removeGroupFromChallenge (challengeLegacyId, groupLegacyId) {
111112
}
112113

113114
/**
114-
* Gets the eligibility ID of a legacyId
115-
* @param {Object} connection
116-
* @param {Number} challengeLegacyId
117-
* @param {Number} groupId
118-
* @returns {Object} { eligibilityId }
115+
* Get group IDs
116+
* @param {Object} connection the connection
117+
* @param {Array} eligibilityIds the eligibility IDs
119118
*/
120-
async function getChallengeEligibilityId (connection, challengeLegacyId, groupId) {
121-
// get the challenge eligibility record, if one doesn't exist, create it and return the id
122-
// logger.info(`getChallengeEligibilityId Query: ${util.format(QUERY_GET_ELIGIBILITY_ID, challengeLegacyId)}`)
123-
let result
124-
if (groupId) {
125-
result = await connection.queryAsync(util.format(QUERY_GET_SINGLE_ELIGIBILITY_ID, challengeLegacyId, groupId))
126-
} else {
127-
result = await connection.queryAsync(util.format(QUERY_GET_ELIGIBILITY_ID, challengeLegacyId))
128-
}
129-
// logger.info(`getChallengeEligibilityId Result: ${JSON.stringify(result)}`)
130-
return (result && result[0]) ? result[0].contest_eligibility_id : false
119+
async function getGroupsForEligibilityIds (connection, eligibilityIds) {
120+
const query = `${QUERY_GET_GROUPS} (${eligibilityIds.join(', ')})`
121+
// logger.debug(`getGroupIdsForEligibilityId ${query}`)
122+
const result = await connection.queryAsync(query)
123+
return result
131124
}
132125

133126
/**
134-
* @param {Object} connection
135-
* @param {Number} eligibilityId
136-
* @param {Number} groupLegacyId
137-
* @returns {Object} DB Result
127+
* Gets the eligibility IDs
128+
* @param {Object} connection the connection
129+
* @param {Number} challengeLegacyId the legacy challenge ID
138130
*/
139-
async function groupEligbilityExists (connection, eligibilityId, groupLegacyId) {
140-
// logger.debug(`groupEligibiltyExists query ${util.format(QUERY_GET_GROUP_ELIGIBILITY_ID, eligibilityId, groupLegacyId)}`)
141-
const result = await connection.queryAsync(util.format(QUERY_GET_GROUP_ELIGIBILITY_ID, eligibilityId, groupLegacyId))
142-
// logger.debug(`groupEligibiltyExists result ${JSON.stringify(result)} ${JSON.stringify(result[0])}`)
143-
return (result && result[0]) || false
131+
async function getChallengeEligibilityIds (connection, challengeLegacyId) {
132+
const query = util.format(QUERY_GET_CONTEST_ELIGIBILITIES_IDS, challengeLegacyId)
133+
// logger.debug(`getGroupIdsForEligibilityId ${query}`)
134+
const result = await connection.queryAsync(query)
135+
return _.map(result, r => r.contest_eligibility_id)
144136
}
145137

146-
async function createChallengeEligibilityRecord (connection, challengeLegacyId, groupId) {
138+
/**
139+
* Create a contest eligibility
140+
* @param {Object} connection the connection
141+
* @param {Number} legacyChallengeId the legacy challenge ID
142+
*/
143+
async function createContestEligibility (connection, legacyChallengeId) {
147144
const query = await prepare(connection, QUERY_INSERT_CONTEST_ELIGIBILITY)
148-
const result = await query.executeAsync([challengeLegacyId, groupId])
149-
if (result) {
150-
const idResult = await connection.queryAsync(util.format(QUERY_GET_ELIGIBILITY_ID, challengeLegacyId))
151-
return idResult[0].contest_eligibility_id
152-
}
153-
return false
145+
await query.executeAsync([legacyChallengeId])
146+
const ids = await getChallengeEligibilityIds(connection, legacyChallengeId)
147+
const groups = await getGroupsForEligibilityIds(connection, ids)
148+
return _.get(_.filter(ids, id => !_.find(groups, g => g.contest_eligibility_id === id)), '[0]')
154149
}
155150

156-
async function createGroupEligibilityRecord (connection, eligibilityId, groupLegacyId) {
151+
/**
152+
* Create group contest eligibility
153+
* @param {Object} connection the connection
154+
* @param {Number} eligibilityId the eligibility ID
155+
* @param {Number} groupId the group ID
156+
*/
157+
async function createGroupContestEligibility (connection, eligibilityId, groupId) {
157158
const query = await prepare(connection, QUERY_INSERT_GROUP_CONTEST_ELIGIBILITY)
158-
const result = await query.executeAsync([eligibilityId, groupLegacyId])
159-
if (result) {
160-
const idResult = await connection.queryAsync(util.format(QUERY_GET_GROUP_ELIGIBILITY_ID, eligibilityId, groupLegacyId))
161-
return idResult[0]
162-
}
163-
return result
164-
}
165-
166-
async function deleteGroupEligibilityRecord (connection, eligibilityId, groupLegacyId) {
167-
const query = await prepare(connection, QUERY_DELETE_GROUP_CONTEST_ELIGIBILITY)
168-
const result = await query.executeAsync([eligibilityId, groupLegacyId])
169-
// logger.debug(`deleteGroupEligibilityRecord ${JSON.stringify(result)}`)
170-
return result
159+
return await query.executeAsync([eligibilityId, groupId])
171160
}
172161

173-
async function deleteEligibilityRecord (connection, eligibilityId) {
174-
const query = await prepare(connection, QUERY_DELETE_CONTEST_ELIGIBILITY)
175-
// logger.debug(`deleteEligibilityRecord Query ${JSON.stringify(query)}`)
176-
const result = await query.executeAsync([eligibilityId])
177-
// logger.debug(`deleteEligibilityRecord ${JSON.stringify(result)}`)
178-
return result
179-
}
180-
181-
async function getCountOfGroupsInEligibilityRecord (connection, eligibilityId) {
182-
const query = util.format(QUERY_GET_GROUPS_COUNT, eligibilityId)
183-
// logger.debug(`Query! ${query}`)
184-
const result = await connection.queryAsync(query)
185-
// logger.debug(`getCountOfGroupsInEligibilityRecord ${JSON.stringify(result)}`)
186-
return { groupsCount: result[0].cnt || 0 }
187-
}
162+
/**
163+
* Removes entries from group_contest_eligibility and contest_eligibility
164+
* @param {Number} eligibilityId the eligibility ID
165+
* @param {Number} groupId the group ID
166+
*/
167+
async function clearData (eligibilityId, groupId) {
168+
let query
169+
query = await prepare(connection, QUERY_DELETE_CONTEST_ELIGIBILITY)
170+
await query.executeAsync([eligibilityId])
188171

189-
async function getGroupIdsForEligibilityId (connection, eligibilityId) {
190-
const query = util.format(QUERY_GET_GROUPS, eligibilityId)
191-
// logger.debug(`getGroupIdsForEligibilityId ${query}`)
192-
const result = await connection.queryAsync(query)
193-
return _.map(result, r => r.group_id)
172+
query = await prepare(connection, QUERY_DELETE_GROUP_CONTEST_ELIGIBILITY)
173+
await query.executeAsync([eligibilityId, groupId])
194174
}
195175

196176
module.exports = {

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