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package pt.estgp.estgweb.domain;
import pt.estgp.estgweb.Globals;
/**
* @author Jorge Machado
* @date 21/Abr/2008
* @time 14:37:50
* @see pt.estgp.estgweb.domain
*/
public class CourseUnitBlogImpl extends CourseUnitBlog
{
public CourseUnitBlogImpl()
{
super.setType(Globals.BLOG_TYPE_COURSE_UNIT);
}
public boolean canAddPost(GenericUserImpl user)
{
return canAddPost(user,false);
}
/**
* Check if user has any target role and if is associated in some way with blog course unit
*
* @param user to check
* @return true if can add post
*/
public boolean canAddPost(GenericUserImpl user, boolean transaction)
{
if(!super.canAddPost(user,transaction))
return false;
if(user == null)
return false;
if(user instanceof Teacher)
{
return ((TeacherImpl)user).hasCourseUnit(getCourseUnit().getId(),transaction);
}
else if(user instanceof Student)
{
return ((StudentImpl)user).hasCourseUnit(getCourseUnit().getId(),transaction);
}
return false;
}
public boolean canLoad(GenericUserImpl user)
{
return !isCourseUnitInternal() || canAddPost(user);
}
public boolean canLoadInOpenTransaction(GenericUserImpl user)
{
return !isCourseUnitInternal() || canAddPost(user,true);
}
public boolean isOwnedBy(GenericUser u, boolean transaction)
{
if(u instanceof UserImpl)
if(((UserImpl) u).isTeacherOfCourseUnit(getCourseUnit().getId(),transaction))
return true;
return false;
}
public boolean isOwnedBy(GenericUser u)
{
return isOwnedBy(u,false);
}
}