public void DeleteEdgeAttribute(int eattid)
{
using (SystemMapEntities db = new SystemMapEntities())
{
edge_attributes delrec = db.edge_attributes
.Where(ea => ea.attributeid == eattid)
.SingleOrDefault();
if (delrec != null)
{
db.edge_attributes.Remove(delrec);
db.SaveChanges();
}
}
}
public void UpdateNodeAttribute(EdgeAttribute udata)
{
using (SystemMapEntities db = new SystemMapEntities())
{
edge_attributes urec = db.edge_attributes
.Where(ea => ea.attributeid == udata.id)
.SingleOrDefault();
if (urec != null)
{
urec.name = udata.name;
urec.descr = udata.description;
urec.attrtypeid = udata.type.typeId;
db.SaveChanges();
}
}
}
public EdgeAttribute AddEdgeAttribute(EdgeAttribute eatt)
{
EdgeAttribute retval = null;
using (SystemMapEntities db = new SystemMapEntities())
{
edge_attributes erec = new edge_attributes
{
name = eatt.name,
descr = eatt.description,
attrtypeid = eatt.type.typeId
};
db.edge_attributes.Add(erec);
db.SaveChanges();
retval = new EdgeAttribute
{
id = erec.attributeid,
name = erec.name,
description = erec.descr
};
retval.type = new TypeService().GetAttributeType(erec.attrtypeid);
}
return(retval);
}
