Add functions

Afzalabadi/Student/classes/student.hpp

@@ -28,7 +28,7 @@ class StudentModel
 };
 
 typedef list<StudentModel>::iterator StudentIterator;
-
+typedef list<StudentModel>::reverse_iterator RStudentIterator;
 
 class Student
 {
@@ -62,7 +62,8 @@ class Student
  Student* filter(Field filteredField);
  Student* sort(Field sortField, SortMode sortMode = SortMode :: Asc); 
  Student* limit(size_t count);
-
+ Student* first(bool filteredData = false);
+ Student* last(bool filteredData = false);
 
 
 
@@ -386,7 +387,74 @@ Student* Student::limit(size_t count)
  this->limitCount = count;
  return this;
 }
+Student* Student::first(bool filteredData)
+{
+ if(filteredData)
+ {
+ for (StudentIterator it = this->students.begin(); it != this->students.end(); it++)
+ {
+ if(it -> filtered)
+ {
+ this->studentModel = *it;
+ break;
+ }
+ }
+ }
+ else
+ {
+ this->studentModel = this->students.front() ;
+ }
+ return this;
+
+}
+
+Student* Student::last(bool filteredData = false)
+{
+ if(filteredData)
+ {
+ for(RStudentIterator it = this->students.rbegin(); it !=this->students.rend();it++)
+
+ if(it -> filtered)
+ {
+ this->studentModel = *it;
+ break;
+ }
+ else
+ {
+ this->studentModel = this->students.back() ; 
+ }
+
+ }
+ return this;
+}
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+
 
 
 
 
+ //https://en.cppreference.com/w/cpp/links/libs