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libfic: refactor rank/points SQL query

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This commit is contained in:
nemunaire 2017-01-16 12:08:15 +01:00
parent 91182b1877
commit 9dd376ba22
1 changed files with 26 additions and 2 deletions
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28
libfic/stats.go
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@ -9,11 +9,35 @@ import (
var FirstBlood = 0.12 var FirstBlood = 0.12
var SubmissionCostBase = 0.5 var SubmissionCostBase = 0.5
func exoptsQuery(whereExo string) string {
return "SELECT S.id_team, S.time, E.gain AS points, coeff FROM (SELECT id_team, id_exercice, MIN(time) AS time, " + fmt.Sprintf("%f", FirstBlood) + " AS coeff FROM exercice_solved GROUP BY id_exercice UNION SELECT id_team, id_exercice, time, coefficient AS coeff FROM exercice_solved) S INNER JOIN exercices E ON S.id_exercice = E.id_exercice " + whereExo + " UNION ALL SELECT id_team, MAX(time) AS time, (FLOOR(COUNT(*)/10 - 1) * (FLOOR(COUNT(*)/10)))/0.2 + (FLOOR(COUNT(*)/10) * (COUNT(*)%10)) AS points, " + fmt.Sprintf("%f", SubmissionCostBase * -1) + " AS coeff FROM exercice_tries S " + whereExo + " GROUP BY id_exercice"
}
func rankQuery(whereTeam string) string {
return "SELECT A.id_team, SUM(A.points * A.coeff) AS score, MAX(A.time) AS time FROM (" + exoptsQuery("") + " UNION ALL SELECT D.id_team, D.time, H.cost AS points, -1.0 AS coeff FROM team_hints D INNER JOIN exercice_hints H ON H.id_hint = D.id_hint HAVING points != 0) A " + whereTeam + " GROUP BY A.id_team ORDER BY score DESC, time ASC"
}
// Points // Points
func (e Exercice) EstimateGain(t Team, solved bool) (float64, error) {
var pts float64
err := DBQueryRow("SELECT SUM(A.points * A.coeff) AS score FROM (" + exoptsQuery("WHERE S.id_team = ? AND S.id_exercice = ?") + ") A GROUP BY id_team", t.Id, e.Id, t.Id, e.Id).Scan(&pts)
if solved {
return pts, err
} else {
pts += float64(e.Gain) * e.Coefficient
if e.SolvedCount() <= 0 {
pts += float64(e.Gain) * FirstBlood
}
return pts, nil
}
}
func (t Team) GetPoints() (float64, error) { func (t Team) GetPoints() (float64, error) {
var tid *int64
var nb *float64 var nb *float64
err := DBQueryRow("SELECT SUM(A.points * A.coeff) AS score FROM (SELECT S.id_team, E.gain AS points, coeff FROM (SELECT id_team, id_exercice, MIN(time) AS time, " + fmt.Sprintf("%f", FirstBlood) + " AS coeff FROM exercice_solved GROUP BY id_exercice UNION SELECT id_team, id_exercice, time, coefficient AS coeff FROM exercice_solved) S INNER JOIN exercices E ON S.id_exercice = E.id_exercice UNION ALL SELECT D.id_team, H.cost AS points, -1.0 AS coeff FROM team_hints D INNER JOIN exercice_hints H ON H.id_hint = D.id_hint UNION ALL SELECT id_team, ((FLOOR(COUNT(*)/10 - 1) * (FLOOR(COUNT(*)/10)))/0.2 + (FLOOR(COUNT(*)/10) * (COUNT(*)%10)))/" + fmt.Sprintf("%f", 1/SubmissionCostBase) + " AS points, -1 AS coeff FROM exercice_tries GROUP BY id_exercice HAVING points != 0) A WHERE A.id_team = ? GROUP BY A.id_team", t.Id).Scan(&nb) var tzzz *time.Time
err := DBQueryRow(rankQuery("WHERE A.id_team = ?"), t.Id).Scan(&tid, &nb, &tzzz)
if nb != nil { if nb != nil {
return *nb, err return *nb, err
} else { } else {
@ -22,7 +46,7 @@ func (t Team) GetPoints() (float64, error) {
} }
func GetRank() (map[int64]int, error) { func GetRank() (map[int64]int, error) {
if rows, err := DBQuery("SELECT A.id_team, SUM(A.points * A.coeff) AS score, MAX(A.time) AS time FROM (SELECT S.id_team, S.time, E.gain AS points, coeff FROM (SELECT id_team, id_exercice, MIN(time) AS time, " + fmt.Sprintf("%f", FirstBlood) + " AS coeff FROM exercice_solved GROUP BY id_exercice UNION SELECT id_team, id_exercice, time, coefficient AS coeff FROM exercice_solved) S INNER JOIN exercices E ON S.id_exercice = E.id_exercice UNION ALL SELECT D.id_team, D.time, H.cost AS points, -1.0 AS coeff FROM team_hints D INNER JOIN exercice_hints H ON H.id_hint = D.id_hint UNION ALL SELECT id_team, MAX(time) AS time, ((FLOOR(COUNT(*)/10 - 1) * (FLOOR(COUNT(*)/10)))/0.2 + (FLOOR(COUNT(*)/10) * (COUNT(*)%10)))/" + fmt.Sprintf("%f", 1/SubmissionCostBase) + " AS points, -1 AS coeff FROM exercice_tries GROUP BY id_exercice HAVING points != 0) A GROUP BY A.id_team ORDER BY score DESC, time ASC"); err != nil { if rows, err := DBQuery(rankQuery("")); err != nil {
return nil, err return nil, err
} else { } else {
defer rows.Close() defer rows.Close()