public async Task <DbCourse> CreateCourseAsync(DbCourse course)
{
if (course == null || course.Id != 0)
{
return(null);
}
_context.Courses.Add(course);
await _context.SaveChangesAsync();
return(course);
}
public async Task <DbCourse> EditCourseAsync(DbCourse course)
{
var oldCourse = await _context.Courses
.Where(c => c.Id == course.Id)
.SingleOrDefaultAsync();
if (oldCourse == null)
{
return(null);
}
if (oldCourse.CourseName != course.CourseName)
{
oldCourse.CourseName = course.CourseName;
}
if (oldCourse.Details != course.Details)
{
oldCourse.Details = course.Details;
}
if (oldCourse.LearningLanguage != course.LearningLanguage)
{
oldCourse.LearningLanguage = course.LearningLanguage;
}
if (oldCourse.LearningLanguageTerritory != course.LearningLanguageTerritory)
{
oldCourse.LearningLanguageTerritory = course.LearningLanguageTerritory;
}
if (oldCourse.TeachingLanguage != course.TeachingLanguage)
{
oldCourse.TeachingLanguage = course.TeachingLanguage;
}
if (oldCourse.TeachingLanguageTerritory != course.TeachingLanguageTerritory)
{
oldCourse.TeachingLanguageTerritory = course.TeachingLanguageTerritory;
}
if (oldCourse.Level != course.Level)
{
oldCourse.Level = course.Level;
}
_context.Courses.Update(oldCourse);
await _context.SaveChangesAsync();
return(course);
}