// Controller Method for CollegeScorecard page, to make an API call to retrieve details of the selected college
public IActionResult CollegeScorecard(int?id)
{
CollegeScorecardViewModel collegescorecarddata = new CollegeScorecardViewModel();
// Start: User accessing the CollegeScorecard link directly, not via Collesgeslist page
if (id == null)
{
ViewBag.collegeselected = 0;
List <School> schoolslist = dbContext.Schools.ToList();
//check if the count is 0 (no data available in database), then call the API
if (schoolslist.Count != 0)
{
Schools schoolsdata = GetSchoolsDatafromAPI();
foreach (School school in schoolsdata.results)
{
schoolslist.Add(school);
}
collegescorecarddata.SchoolsList = schoolslist;
}
else
{
collegescorecarddata.SchoolsList = schoolslist;
}
return(View(collegescorecarddata));
}
// End: User accessing the CollegeScorecard link directly, not via Collesgeslist page
// Start: User accessing the CollegeScorecard from Collesgeslist page
else
{
ViewBag.collegeselected = id;
collegescorecarddata = GetStudentBodyandCostData(id);
return(View(collegescorecarddata));
}
// End: User accessing the CollegeScorecard from Collesgeslist page
}
public IActionResult CollegeScorecard(int? id)
{
if (id == null)
{
ViewBag.collegeselected = 0;
CollegeScorecardViewModel collegescorecarddata = new CollegeScorecardViewModel();
List<School> schoolslist = dbContext.Schools.ToList();
//check if the count is 0 (no data available in database), then call the API
if(schoolslist.Count == 0)
{
APIHandler webHandler = new APIHandler();
Schools schoolsdata = webHandler.GetSchoolsData();
foreach (School school in schoolsdata.results)
{
schoolslist.Add(school);
}
collegescorecarddata.SchoolsList = schoolslist;
}
else
{
collegescorecarddata.SchoolsList = schoolslist;
}
return View(collegescorecarddata);
}
else
{
ViewBag.collegeselected = id;
APIHandler webHandler = new APIHandler();
string studentbodyandcostdata = webHandler.GetStudentBodyandCostData(id);
StudentBodyData studentbodydata = new StudentBodyData();
CostAidEarningsData costaidearningsdata = new CostAidEarningsData();
CollegeScorecardViewModel collegescorecarddata = new CollegeScorecardViewModel();
List<School> schoolslist = dbContext.Schools.ToList();
/*check if the count is 0 (no data available in database), then call the API
* move to a different function
if (schoolslist.Count == 0)
{
APIHandler webHandler = new APIHandler();
Schools schoolsdata = webHandler.GetSchoolsData();
foreach (School school in schoolsdata.results)
{
schoolslist.Add(school);
}
collegescorecarddata.SchoolsList = schoolslist;
}
else
{
collegescorecarddata.SchoolsList = schoolslist;
}
*/
collegescorecarddata.SchoolsList = schoolslist;
var settings = new JsonSerializerSettings
{
NullValueHandling = NullValueHandling.Ignore,
MissingMemberHandling = MissingMemberHandling.Ignore
};
if (!studentbodyandcostdata.Equals(""))
{
// JsonConvert is part of the NewtonSoft.Json Nuget package
studentbodydata = JsonConvert.DeserializeObject<StudentBodyData>(studentbodyandcostdata, settings);
costaidearningsdata = JsonConvert.DeserializeObject<CostAidEarningsData>(studentbodyandcostdata, settings);
}
foreach (StudentBody studentbody in studentbodydata.results)
{
//Database will give PK constraint violation error when trying to insert record with existing PK.
//So add company only if it doesnt exist, check existence using symbol (PK)
if (dbContext.StudentBody.Where(c => c.id.Equals(studentbody.id)).Count() == 0)
{
dbContext.StudentBody.Add(studentbody);
}
collegescorecarddata.StudentBody = studentbody;
}
foreach (CostAidEarnings costaidearnings in costaidearningsdata.results)
{
//Database will give PK constraint violation error when trying to insert record with existing PK.
//So add company only if it doesnt exist, check existence using symbol (PK)
if (dbContext.CostAidEarnings.Where(c => c.id.Equals(costaidearnings.id)).Count() == 0)
{
dbContext.CostAidEarnings.Add(costaidearnings);
}
collegescorecarddata.CostAidEarnings = costaidearnings;
}
dbContext.SaveChanges();
return View(collegescorecarddata);
}
}
public CollegeScorecardViewModel GetStudentBodyandCostData(int?id)
{
StudentBodyData studentbodydata = new StudentBodyData();
StudentBody studentbodyfromDB = new StudentBody();
CostAidEarningsData costaidearningsdata = new CostAidEarningsData();
CostAidEarnings costaidearningsfromDB = new CostAidEarnings();
CollegeScorecardViewModel collegescorecarddata = new CollegeScorecardViewModel();
string studentbodyandcostdata = "";
//Retrieving the list of colleges from Database
List <School> schoolslist = dbContext.Schools.ToList();
//Retrieving the studentbody data from Database for the selected college
studentbodyfromDB = dbContext.StudentBody.Where(s => s.id == id).FirstOrDefault();
//Retrieving the studentbody data from Database for the selected college
costaidearningsfromDB = dbContext.CostAidEarnings.Where(s => s.id == id).FirstOrDefault();
//check if the count is 0 (no data available in database), then call the API
if (schoolslist.Count == 0)
{
Schools schoolsdata = GetSchoolsDatafromAPI();
foreach (School school in schoolsdata.results)
{
schoolslist.Add(school);
}
}
//check if the studentbodyfromDB or costaidearningsfromDB is null (no data available in database), then call the API
if (studentbodyfromDB == null || costaidearningsfromDB == null)
{
APIHandler webHandler = new APIHandler();
studentbodyandcostdata = webHandler.GetStudentBodyandCostDataAPI(id);
var settings = new JsonSerializerSettings
{
NullValueHandling = NullValueHandling.Include,
MissingMemberHandling = MissingMemberHandling.Ignore
};
if (!studentbodyandcostdata.Equals(""))
{
// JsonConvert is part of the NewtonSoft.Json Nuget package
studentbodydata = JsonConvert.DeserializeObject <StudentBodyData>(studentbodyandcostdata, settings);
costaidearningsdata = JsonConvert.DeserializeObject <CostAidEarningsData>(studentbodyandcostdata, settings);
}
foreach (StudentBody studentbody in studentbodydata.results)
{
//Database will give PK constraint violation error when trying to insert record with existing PK.
//So add company only if it doesnt exist, check existence using symbol (PK)
if (dbContext.StudentBody.Where(c => c.id.Equals(studentbody.id)).Count() == 0)
{
dbContext.StudentBody.Add(studentbody);
}
collegescorecarddata.StudentBody = studentbody;
}
foreach (CostAidEarnings costaidearnings in costaidearningsdata.results)
{
//Database will give PK constraint violation error when trying to insert record with existing PK.
//So add company only if it doesnt exist, check existence using symbol (PK)
if (dbContext.CostAidEarnings.Where(c => c.id.Equals(costaidearnings.id)).Count() == 0)
{
dbContext.CostAidEarnings.Add(costaidearnings);
}
collegescorecarddata.CostAidEarnings = costaidearnings;
}
dbContext.SaveChanges();
collegescorecarddata.SchoolsList = schoolslist;
}
//check if the data in the DB is older than 30 days?, then call the API
else if (studentbodyfromDB != null && costaidearningsfromDB != null)
{
// Checking the last saved data time for studentbody and costaidrearnings records
int studentbodylastSaveddataTime = (DateTime.Now.Date - studentbodyfromDB.CreatedOn.Date).Days;
int costaidearningslastSaveddataTime = (DateTime.Now.Date - costaidearningsfromDB.CreatedOn.Date).Days;
if (studentbodylastSaveddataTime > 30 || costaidearningslastSaveddataTime > 30)
{
APIHandler webHandler = new APIHandler();
studentbodyandcostdata = webHandler.GetStudentBodyandCostDataAPI(id);
var settings = new JsonSerializerSettings
{
NullValueHandling = NullValueHandling.Include,
MissingMemberHandling = MissingMemberHandling.Ignore
};
if (!studentbodyandcostdata.Equals(""))
{
// JsonConvert is part of the NewtonSoft.Json Nuget package
studentbodydata = JsonConvert.DeserializeObject <StudentBodyData>(studentbodyandcostdata, settings);
costaidearningsdata = JsonConvert.DeserializeObject <CostAidEarningsData>(studentbodyandcostdata, settings);
}
foreach (StudentBody studentbody in studentbodydata.results)
{
//Database will give PK constraint violation error when trying to insert record with existing PK.
//So add company only if it doesnt exist, check existence using symbol (PK)
if (dbContext.StudentBody.Where(c => c.id.Equals(studentbody.id)).Count() == 0)
{
dbContext.StudentBody.Add(studentbody);
}
// Update the existing DB record with the latest data from API
else
{
studentbodyfromDB.CreatedOn = DateTime.Now;
studentbodyfromDB.latestadmissionsadmission_rateoverall = studentbody.latestadmissionsadmission_rateoverall;
studentbodyfromDB.latestcompletioncompletion_rate_4yr_150nt = studentbody.latestcompletioncompletion_rate_4yr_150nt;
studentbodyfromDB.lateststudentdemographicsfemale_share = studentbody.lateststudentdemographicsfemale_share;
studentbodyfromDB.lateststudentgrad_students = studentbody.lateststudentgrad_students;
studentbodyfromDB.lateststudentpart_time_share = studentbody.lateststudentpart_time_share;
studentbodyfromDB.lateststudentretention_ratefour_yearfull_time = studentbody.lateststudentretention_ratefour_yearfull_time;
studentbodyfromDB.lateststudentsize = studentbody.lateststudentsize;
dbContext.Entry(studentbodyfromDB).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
}
collegescorecarddata.StudentBody = studentbody;
}
foreach (CostAidEarnings costaidearnings in costaidearningsdata.results)
{
//Database will give PK constraint violation error when trying to insert record with existing PK.
//So add company only if it doesnt exist, check existence using symbol (PK)
if (dbContext.CostAidEarnings.Where(c => c.id.Equals(costaidearnings.id)).Count() == 0)
{
dbContext.CostAidEarnings.Add(costaidearnings);
}
// Update the existing DB record with the latest data from API
else
{
costaidearningsfromDB.CreatedOn = DateTime.Now;
costaidearningsfromDB.latestaidfederal_loan_rate = costaidearnings.latestaidfederal_loan_rate;
costaidearningsfromDB.latestaidmedian_debtcompletersoverall = costaidearnings.latestaidmedian_debtcompletersoverall;
costaidearningsfromDB.latestaidpell_grant_rate = costaidearnings.latestaidpell_grant_rate;
costaidearningsfromDB.latestcostavg_net_pricepublic = costaidearnings.latestcostavg_net_pricepublic;
costaidearningsfromDB.latestcosttuitionin_state = costaidearnings.latestcosttuitionin_state;
costaidearningsfromDB.latestcosttuitionout_of_state = costaidearnings.latestcosttuitionout_of_state;
costaidearningsfromDB.latestearnings10_yrs_after_entrymedian = costaidearnings.latestearnings10_yrs_after_entrymedian;
}
collegescorecarddata.CostAidEarnings = costaidearnings;
}
dbContext.SaveChanges();
collegescorecarddata.SchoolsList = schoolslist;
}
else
{
collegescorecarddata.SchoolsList = schoolslist;
collegescorecarddata.StudentBody = studentbodyfromDB;
collegescorecarddata.CostAidEarnings = costaidearningsfromDB;
}
}
return(collegescorecarddata);
}