// Generate the number of the previous 3 years publications
public static float calThreeYearAveragePublications(MySqlConnection conn, int id)
{
// the return value of the previous three years publications
float averagePublications = 0;
// curent year
int currentYear = DateTime.Now.Year;
//get the previous years data
int preYear1 = currentYear - 1;
int preYear2 = currentYear - 2;
int preYear3 = currentYear - 3;
MySqlDataReader rdr = null;
try
{
// Open the connection
conn.Open();
// 1. Instantiate a new command with a query and connection
MySqlCommand cmd = new MySqlCommand("SELECT count(p.doi) / 3 as publicationCount FROM publication p, researcher_publication rp WHERE p.year in (?preYear1 ,?preYear2 ,?preYear3) and p.doi=rp.doi and rp.researcher_id = ?researcher_id", conn);
cmd.Parameters.AddWithValue("researcher_id", id);
cmd.Parameters.AddWithValue("preYear1", preYear1);
cmd.Parameters.AddWithValue("preYear2", preYear2);
cmd.Parameters.AddWithValue("preYear3", preYear3);
// 2. Call Execute reader to get query results
rdr = cmd.ExecuteReader();
// print the CategoryName of each record
while (rdr.Read())
{
averagePublications = rdr.GetFloat(0);
}
return(averagePublications);
}
catch (MySqlException e)
{
ERDAdapter.ReportError("loading training sessions", e);
}
finally
{
// close the reader
if (rdr != null)
{
rdr.Close();
}
// Close the connection
if (conn != null)
{
conn.Close();
}
}
return(averagePublications);
}
// return the publication count
public static int fetchPublicationCounts(MySqlConnection conn, int id)
{
int publicationCount = 0;
MySqlDataReader rdr = null;
try
{
// Open the connection
conn.Open();
// 1. Instantiate a new command with a query and connection
MySqlCommand cmd = new MySqlCommand("SELECT count(p.doi) publicationCount FROM publication p, researcher_publication rp WHERE p.doi = rp.doi and rp.researcher_id = ?researcher_id", conn);
cmd.Parameters.AddWithValue("researcher_id", id);
// 2. Call Execute reader to get query results
rdr = cmd.ExecuteReader();
// print the CategoryName of each record
while (rdr.Read())
{
//This illustrates how the raw data can be obtained using an indexer [] or a particular data type can be obtained using a GetTYPENAME() method.
publicationCount = rdr.GetInt32(0);
}
}
catch (MySqlException e)
{
ERDAdapter.ReportError("loading training sessions", e);
}
finally
{
// close the reader
if (rdr != null)
{
rdr.Close();
}
// Close the connection
if (conn != null)
{
conn.Close();
}
}
Researcher r = new Researcher();
r.setId(id);
/*
* List<int> i = fetchPublicationYearList(conn, r);
* for(int j=0; j<i.Count; j++)
* {
* Console.WriteLine("@@@@@@@@@@@@@@@@ + " + i[j]);
* }
*/
return(publicationCount);
}
// fetch supervisor's student list.
public static List <Student> fetchSupervisionStudents(MySqlConnection conn, Researcher r)
{
List <Student> students = new List <Student>();
MySqlDataReader rdr = null;
try
{
// Open the connection
conn.Open();
// 1. Instantiate a new command with a query and connection
MySqlCommand cmd = new MySqlCommand("select family_name, given_name, title, id, degree, unit, campus from researcher where supervisor_id=?supervisor_id", conn);
cmd.Parameters.AddWithValue("supervisor_id", r.getId());
// 2. Call Execute reader to get query results
rdr = cmd.ExecuteReader();
// print the CategoryName of each record
while (rdr.Read())
{
Student s = new Student();
s.FamilyName = rdr.GetString(0);
s.GivenName = rdr.GetString(1);
s.Title = rdr.GetString(2);
s.Unit = rdr.GetString(5);
s.Campus = rdr.GetString(6);
s.setId(rdr.GetInt32(3));
//This illustrates how the raw data can be obtained using an indexer [] or a particular data type can be obtained using a GetTYPENAME() method.
students.Add(s);
}
}
catch (MySqlException e)
{
ERDAdapter.ReportError("loading training sessions", e);
}
finally
{
// close the reader
if (rdr != null)
{
rdr.Close();
}
// Close the connection
if (conn != null)
{
conn.Close();
}
}
return(students);
}
// return all the researchers, part properties are available,just for the researcher list
public static List <Researcher> fetchBasicResearcherDetails(MySqlConnection conn)
{
List <Researcher> researchers = new List <Researcher>();
MySqlDataReader rdr = null;
try
{
// Open the connection
conn.Open();
// 1. Instantiate a new command with a query and connection
MySqlCommand cmd = new MySqlCommand("select family_name,given_name,title,id,IFNULL(level, 'Student') as level,type from researcher", conn);
// 2. Call Execute reader to get query results
rdr = cmd.ExecuteReader();
// print the CategoryName of each record
while (rdr.Read())
{
Researcher r = new Researcher
{
FamilyName = rdr.GetString(0),
GivenName = rdr.GetString(1),
Title = rdr.GetString(2),
Level = rdr.GetValue(4).ToString(),
Type = rdr.GetString(5)
};
r.setId(rdr.GetInt32(3));
//This illustrates how the raw data can be obtained using an indexer [] or a particular data type can be obtained using a GetTYPENAME() method.
researchers.Add(r);
}
return(researchers);
}
catch (MySqlException e)
{
ERDAdapter.ReportError("loading training sessions", e);
}
finally
{
// close the reader
if (rdr != null)
{
rdr.Close();
}
// Close the connection
if (conn != null)
{
conn.Close();
}
}
return(researchers);
}
// by using researcher id, fetch the publication list
public static List <Publication> fetchBasicPublicationDetails(MySqlConnection conn, Researcher r)
{
List <Publication> publications = new List <Publication>();
MySqlDataReader rdr = null;
try
{
// Open the connection
conn.Open();
// 1. Instantiate a new command with a query and connection
MySqlCommand cmd = new MySqlCommand("select p.doi, p.title, p.authors, p.year, p.cite_as, p.available from publication p, researcher_publication rp WHERE p.doi = rp.doi and rp.researcher_id = ?researcher_id order by year asc ", conn);
cmd.Parameters.AddWithValue("researcher_id", r.getId());
// 2. Call Execute reader to get query results
rdr = cmd.ExecuteReader();
// print the CategoryName of each record
while (rdr.Read())
{
//This illustrates how the raw data can be obtained using an indexer [] or a particular data type can be obtained using a GetTYPENAME() method.
publications.Add(new Publication
{
DOI = rdr.GetString(0),
Title = rdr.GetString(1),
Authors = rdr.GetString(2),
Year = rdr.GetInt32(3),
CiteAs = rdr.GetString(4),
Available = rdr.GetDateTime(5)
});
}
}
catch (MySqlException e)
{
ERDAdapter.ReportError("loading training sessions", e);
}
finally
{
// close the reader
if (rdr != null)
{
rdr.Close();
}
// Close the connection
if (conn != null)
{
conn.Close();
}
}
return(publications);
}
// Generate publication count group by year
public static List <PublicationYearCount> genPublicationYearData(MySqlConnection conn, Researcher r)
{
List <PublicationYearCount> pList = new List <PublicationYearCount>();
MySqlDataReader rdr = null;
try
{
// Open the connection
conn.Open();
// 1. Instantiate a new command with a query and connection
MySqlCommand cmd = new MySqlCommand("SELECT count(p.doi) as publicationCount, p.Year FROM publication p, researcher_publication rp WHERE p.doi = rp.doi and rp.researcher_id = ?researcher_id group by p.year order by year", conn);
cmd.Parameters.AddWithValue("researcher_id", r.getId());
// 2. Call Execute reader to get query results
rdr = cmd.ExecuteReader();
// generate publication count group by year
while (rdr.Read())
{
pList.Add(new PublicationYearCount {
count = rdr.GetInt32(0), year = rdr.GetInt32(1)
});
}
}
catch (MySqlException e)
{
ERDAdapter.ReportError("loading training sessions", e);
}
finally
{
// close the reader
if (rdr != null)
{
rdr.Close();
}
// Close the connection
if (conn != null)
{
conn.Close();
}
}
return(pList);
}
// return the year list of the researcher's publication
public static List <int> fetchPublicationYearList(MySqlConnection conn, Researcher r)
{
List <int> yearList = new List <int>();
MySqlDataReader rdr = null;
try
{
// Open the connection
conn.Open();
// 1. Instantiate a new command with a query and connection
MySqlCommand cmd = new MySqlCommand("SELECT distinct year FROM publication p, researcher_publication rp WHERE p.doi = rp.doi and rp.researcher_id = ?researcher_id order by year asc", conn);
cmd.Parameters.AddWithValue("researcher_id", r.getId());
// 2. Call Execute reader to get query results
rdr = cmd.ExecuteReader();
while (rdr.Read())
{
//This illustrates how the raw data can be obtained using an indexer [] or a particular data type can be obtained using a GetTYPENAME() method.
yearList.Add(rdr.GetInt32(0));
}
}
catch (MySqlException e)
{
ERDAdapter.ReportError("loading training sessions", e);
}
finally
{
// close the reader
if (rdr != null)
{
rdr.Close();
}
// Close the connection
if (conn != null)
{
conn.Close();
}
}
return(yearList);
}
// by using the researcher id, get the researcher details
public static Researcher fetchFullResearcherDetails(MySqlConnection conn, int id)
{
Researcher researcher = new Researcher();
Student rStudent = new Student();
Staff rStaff = new Staff();
String type = "";
MySqlDataReader rdr = null;
//MySqlDataReader rdr2 = null;
try
{
conn.Open();
// This part will generate the supersision count of the researcher
MySqlCommand cmd2 = new MySqlCommand("select count(*) as supervisioncount " +
"from researcher " +
"where supervisor_id=?supervisor_id", conn);
cmd2.Parameters.AddWithValue("supervisor_id", id);
rdr = cmd2.ExecuteReader();
while (rdr.Read())
{
researcher.Supervisions = rdr.GetInt32(0);
}
rdr.Close();
// This part will generate the researcher detailed information
MySqlCommand cmd = new MySqlCommand("select given_name, family_name, title, unit, campus, email, photo,level, current_start, utas_start, " +
"timestampdiff(day, DATE_FORMAT(utas_start,'%Y-%m-%d'),DATE_FORMAT(SYSDATE(), '%Y-%m-%d')) as days, " +
"type, IFNULL(degree, '') " +
"from researcher " +
"where id=?id", conn);
cmd.Parameters.AddWithValue("id", id);
rdr = cmd.ExecuteReader();
while (rdr.Read())
{
researcher.GivenName = rdr.GetString(0);
researcher.FamilyName = rdr.GetString(1);
researcher.Title = rdr.GetString(2);
researcher.Unit = rdr.GetString(3);
researcher.Campus = rdr.GetString(4);
researcher.Email = rdr.GetString(5);
researcher.Photo = rdr.GetString(6);
//Check whether 'Level' is null
if (!rdr.IsDBNull(7))
{
researcher.Level = rdr.GetString(7);
}
else
{
researcher.Level = "";
}
researcher.CurrentJobStart = rdr.GetDateTime(8);
researcher.EarliestStart = rdr.GetDateTime(9);
float years = (float)rdr.GetInt32(10) / 365;
int dayInt = (int)(years * 100);
years = (float)dayInt / 100;
researcher.Tenure = years;
type = rdr.GetString(11);
// if the researche type equals 'Student', generate student object
if (type == "Student")
{
rStudent.GivenName = researcher.GivenName;
rStudent.FamilyName = researcher.FamilyName;
rStudent.Title = researcher.Title;
rStudent.Unit = researcher.Unit;
rStudent.Campus = researcher.Campus;
rStudent.Email = researcher.Email;
rStudent.Photo = researcher.Photo;
rStudent.Level = researcher.Level;
rStudent.CurrentJobStart = researcher.CurrentJobStart;
rStudent.EarliestStart = researcher.EarliestStart;
rStudent.Tenure = researcher.Tenure;
rStudent.Supervisions = researcher.Supervisions;
rStudent.Degree = rdr.GetString(12);
}
// if the researche type equals 'Student', generate staff object
else
{
rStaff.GivenName = researcher.GivenName;
rStaff.FamilyName = researcher.FamilyName;
rStaff.Title = researcher.Title;
rStaff.Unit = researcher.Unit;
rStaff.Campus = researcher.Campus;
rStaff.Email = researcher.Email;
rStaff.Photo = researcher.Photo;
rStaff.Level = researcher.Level;
rStaff.CurrentJobStart = researcher.CurrentJobStart;
rStaff.EarliestStart = researcher.EarliestStart;
rStaff.Tenure = researcher.Tenure;
rStaff.Supervisions = researcher.Supervisions;
}
}
}
catch (MySqlException e)
{
ERDAdapter.ReportError("loading training sessions", e);
}
finally
{
if (rdr != null)
{
rdr.Close();
}
if (conn != null)
{
conn.Close();
}
}
// return student object
if (type == "Student")
{
//get the publication count
rStudent.PublicationsCount = PublicationAdapter.fetchPublicationCounts(conn, id);
return(rStudent);
}
// return staff object
else
{
//get the publication count
rStaff.PublicationsCount = PublicationAdapter.fetchPublicationCounts(conn, id);
rStaff.ThreeYearAverage = calThreeYearAveragePublications(conn, id);
// according to the level of staff, calculate the performance data
switch (rStaff.Level)
{
case "A": rStaff.Performance = (float)(rStaff.ThreeYearAverage / 0.5);
break;
case "B":
rStaff.Performance = rStaff.ThreeYearAverage;
break;
case "C":
rStaff.Performance = (float)(rStaff.ThreeYearAverage / 2);
break;
case "D":
rStaff.Performance = (float)(rStaff.ThreeYearAverage / 3.2);
break;
case "E":
rStaff.Performance = (float)(rStaff.ThreeYearAverage / 4);
break;
}
return(rStaff);
}
}
// return the researcher's previous position list
public static List <Position> fetchPreviousPositions(MySqlConnection conn, Researcher r)
{
List <Position> positions = new List <Position>();
MySqlDataReader rdr = null;
try
{
conn.Open();
int id = r.getId();
//if the end time is null, set a defaut value '3000-01-01 00:00:00'
MySqlCommand cmd = new MySqlCommand("select level,start, IFNULL(end, '3000-01-01 00:00:00') " +
"from position " +
"where end is not null and id=?id", conn);
cmd.Parameters.AddWithValue("id", id);
rdr = cmd.ExecuteReader();
while (rdr.Read())
{
DateTime endTime = rdr.GetDateTime(2);
//if the end time equals the default time, set the end time to 'new DateTime()'
if (endTime.Year == 3000)
{
DateTime rtEnd = new DateTime();
positions.Add(new Position
{
level = rdr.GetValue(0).ToString(),
start = rdr.GetDateTime(1),
end = rtEnd
});
}
else
{
positions.Add(new Position
{
level = rdr.GetValue(0).ToString(),
start = rdr.GetDateTime(1),
end = endTime
});
}
}
}
catch (MySqlException e)
{
ERDAdapter.ReportError("loading training sessions", e);
}
finally
{
if (rdr != null)
{
rdr.Close();
}
if (conn != null)
{
conn.Close();
}
}
/*
* foreach( Position p in positions)
* {
* Console.WriteLine("@@@@@@@@@@@@@@: " + p.ToString());
* }
*/
return(positions);
}
