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have working correct/incorrect/total/ratio values for every type from a 'single' query in getStats()

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BroodjeAap 2020-11-09 21:49:29 +01:00
parent f9ecd40a10
commit 5c056fa101
1 changed files with 59 additions and 13 deletions
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72
lib/pages/practice/PracticeDatabase.dart
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@ -41,7 +41,7 @@ class PracticeDatabase {
INNER JOIN PracticeAnswer on PracticeSession.id = PracticeAnswer.sessionId;
''');
await database.execute('''
CREATE VIEW AnswersCorrectByTypeView AS
CREATE VIEW AnswersCorrectByTypeViewAll AS
SELECT
type,
SUM(correct = 1)*1.0 AS correct,
@ -53,15 +53,48 @@ class PracticeDatabase {
type;
''');
await database.execute('''
CREATE VIEW AnswersRatioByTypeView AS
CREATE VIEW AnswersCorrectByTypeView7d AS
SELECT
type,
correct,
incorrect,
total,
correct / total AS ratio
SUM(correct = 1)*1.0 AS correct,
SUM(correct = 0)*1.0 AS incorrect,
COUNT(*) AS total,
CAST(
strftime('%s', time)
AS INTEGER
) as time,
CAST(
strftime("%s", DATETIME('now', '-7 day'))
AS INTEGER
) as before
FROM
AnswersCorrectByTypeView
AnswersView
WHERE
time < before
GROUP BY
type;
''');
await database.execute('''
CREATE VIEW AnswersCorrectByTypeView30d AS
SELECT
type,
SUM(correct = 1)*1.0 AS correct,
SUM(correct = 0)*1.0 AS incorrect,
COUNT(*) AS total,
CAST(
strftime('%s', time)
AS INTEGER
) as time,
CAST(
strftime("%s", DATETIME('now', '-1 month '))
AS INTEGER
) as before
FROM
AnswersView
WHERE
time < before
GROUP BY
type;
''');
}
@ -95,18 +128,31 @@ class PracticeDatabase {
static Future<Map<String, dynamic>> getStats() async {
var db = await getDatabase();
List<Map<String, dynamic>> answers = await db.rawQuery('''
SELECT
SELECT
type,
correct,
incorrect,
total,
ratio
total
FROM
AnswersRatioByTypeView
AnswersCorrectByTypeViewAll
UNION ALL
SELECT
type,
correct,
incorrect,
total
FROM
AnswersCorrectByTypeView7d
UNION ALL
SELECT
type,
correct,
incorrect,
total
FROM
AnswersCorrectByTypeView30d;
''');
print(answers);
var first = answers.first;
print(first["practice_id"]);
print("something else");
}
}