public static void InsertEntry(DateTime date, double durationMinutes, string contentTitle)
{
StudyHistoryDataContext studyHistoryDB = new StudyHistoryDataContext(StudyHistoryDataContext.DBConnectionString);
StudyHistoryItem itemToFind = null;
var itemsInDB = from StudyHistoryItem studyHistory in studyHistoryDB.StudyHistoryItems
select studyHistory;
IEnumerator<StudyHistoryItem> enumerator = studyHistoryDB.StudyHistoryItems.GetEnumerator();
while (enumerator.MoveNext())
{
StudyHistoryItem item = enumerator.Current;
if (item.ContentTitle.Equals(contentTitle)
&& date.CompareTo(item.Date) == 0)
{
itemToFind = item;
break;
}
}
if (itemToFind == null)
{
itemToFind = new StudyHistoryItem
{
Date = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day),
DurationMinute = durationMinutes,
ContentTitle = contentTitle
};
studyHistoryDB.StudyHistoryItems.InsertOnSubmit(itemToFind);
}
else
{
itemToFind.DurationMinute += durationMinutes;
}
studyHistoryDB.SubmitChanges();
}
public static void DeleteDatabase()
{
using (StudyHistoryDataContext db = new StudyHistoryDataContext(StudyHistoryDataContext.DBConnectionString))
{
db.DeleteDatabase();
}
}
public static void CreateDatabase()
{
using (StudyHistoryDataContext db = new StudyHistoryDataContext(StudyHistoryDataContext.DBConnectionString))
{
if (db.DatabaseExists() == false)
db.CreateDatabase();
}
}
public static List<StudyHistoryItem> GetTodayList()
{
List<StudyHistoryItem> todayList;
using (StudyHistoryDataContext db = new StudyHistoryDataContext(StudyHistoryDataContext.DBConnectionString))
{
var itemsInDB = from StudyHistoryItem studyHistory in db.StudyHistoryItems
where studyHistory.Date.Date.CompareTo(DateTime.Now.Date) == 0
orderby studyHistory.DurationMinute descending
select studyHistory;
todayList = new List<StudyHistoryItem>(itemsInDB);
for (int i = 0; i < todayList.Count; i++)
{
double value = todayList[i].DurationMinute;
value = Math.Ceiling(value * 10) / 10;
todayList[i].DurationMinute = value;
}
}
return todayList;
}
public static List<StudyHistoryItem> GetDayList(int maxEntries)
{
List<StudyHistoryItem> dayList = new List<StudyHistoryItem>();
using (StudyHistoryDataContext db = new StudyHistoryDataContext(StudyHistoryDataContext.DBConnectionString))
{
var itemsInDB = from StudyHistoryItem studyHistory in db.StudyHistoryItems
where studyHistory.Date.Date.CompareTo(DateTime.Now.Date) < 0
orderby studyHistory.Date descending
select studyHistory;
IEnumerator<StudyHistoryItem> enumerator = itemsInDB.GetEnumerator();
while (enumerator.MoveNext())
{
StudyHistoryItem item = enumerator.Current;
double value = item.DurationMinute;
value = Math.Ceiling(value * 10) / 10;
if (dayList.Count > 0
&& dayList.Last().Date.Date.CompareTo(item.Date.Date) == 0)
{
dayList.Last().DurationMinute += value;
}
else
{
if (dayList.Count >= maxEntries)
break;
else
{
dayList.Add(item);
dayList.Last().DurationMinute = value;
}
}
}
}
return dayList;
}
public static void DeleteAllEntries()
{
StudyHistoryDataContext studyHistoryDB = new StudyHistoryDataContext(StudyHistoryDataContext.DBConnectionString);
studyHistoryDB.StudyHistoryItems.DeleteAllOnSubmit(studyHistoryDB.StudyHistoryItems);
studyHistoryDB.SubmitChanges();
}
public static StudyHistoryItem GetEarliestItem()
{
using (StudyHistoryDataContext db = new StudyHistoryDataContext(StudyHistoryDataContext.DBConnectionString))
{
var itemsInDB = from StudyHistoryItem studyHistory in db.StudyHistoryItems
orderby studyHistory.Date ascending
select studyHistory;
return itemsInDB.FirstOrDefault();
}
}
public static List<StudyHistoryItem> GetHistroyListByContentTitle()
{
List<StudyHistoryItem> historyList = new List<StudyHistoryItem>();
using (StudyHistoryDataContext db = new StudyHistoryDataContext(StudyHistoryDataContext.DBConnectionString))
{
var itemsInDB = from StudyHistoryItem studyHistory in db.StudyHistoryItems
where studyHistory.Date.Date.CompareTo(DateTime.Now.Date) <= 0
select studyHistory;
IEnumerator<StudyHistoryItem> enumerator = itemsInDB.GetEnumerator();
while (enumerator.MoveNext())
{
StudyHistoryItem item = enumerator.Current;
double value = item.DurationMinute;
value = Math.Ceiling(value * 10) / 10;
bool isElementFound = false;
for (int i = 0; i < historyList.Count; i++)
{
if (historyList[i].ContentTitle.Equals(item.ContentTitle))
{
isElementFound = true;
historyList[i].DurationMinute += value;
break;
}
}
if (isElementFound == false)
{
historyList.Add(item);
historyList.Last().DurationMinute = value;
}
}
}
return historyList;
}
public static List<StudyHistoryItem> GetMonthList(int maxEntries)
{
List<StudyHistoryItem> monthList = new List<StudyHistoryItem>();
using (StudyHistoryDataContext db = new StudyHistoryDataContext(StudyHistoryDataContext.DBConnectionString))
{
DateTime firstDayOfThisMonth = new DateTime(DateTime.Now.Year, DateTime.Now.Month, 1);
var itemsInDB = from StudyHistoryItem studyHistory in db.StudyHistoryItems
where studyHistory.Date.Date.CompareTo(firstDayOfThisMonth.Date) < 0
orderby studyHistory.Date descending
select studyHistory;
IEnumerator<StudyHistoryItem> enumerator = itemsInDB.GetEnumerator();
while (enumerator.MoveNext())
{
StudyHistoryItem item = enumerator.Current;
double value = item.DurationMinute;
value = Math.Ceiling(value * 10) / 10;
if (monthList.Count > 0
&& monthList.Last().Date.Year == item.Date.Year && monthList.Last().Date.Month == item.Date.Month)
{
monthList.Last().DurationMinute += value;
}
else
{
if (monthList.Count >= maxEntries)
break;
else
{
monthList.Add(item);
monthList.Last().DurationMinute = value;
}
}
}
}
return monthList;
}
public static List<StudyHistoryItem> GetThisMonthList()
{
List<StudyHistoryItem> thisMonthList = new List<StudyHistoryItem>();
using (StudyHistoryDataContext db = new StudyHistoryDataContext(StudyHistoryDataContext.DBConnectionString))
{
DateTime today = DateTime.Now.Date;
var itemsInDB = from StudyHistoryItem studyHistory in db.StudyHistoryItems
where studyHistory.Date.Year == today.Year && studyHistory.Date.Month == today.Month
select studyHistory;
IEnumerator<StudyHistoryItem> enumerator = itemsInDB.GetEnumerator();
while (enumerator.MoveNext())
{
StudyHistoryItem item = enumerator.Current;
double value = item.DurationMinute;
value = Math.Ceiling(value * 10) / 10;
bool isElementFound = false;
for (int i = 0; i < thisMonthList.Count; i++)
{
if (thisMonthList[i].ContentTitle.Equals(item.ContentTitle))
{
isElementFound = true;
thisMonthList[i].DurationMinute += value;
break;
}
}
if (isElementFound == false)
{
thisMonthList.Add(item);
thisMonthList.Last().DurationMinute = value;
}
}
}
return thisMonthList;
}
