private bool IsNullRelationshipAssignment(MappingEntity entity, EntityAssignment assignment)
{
if (this.mapping.IsRelationship(entity, assignment.Member))
{
var cex = assignment.Expression as ConstantExpression;
if (cex != null && cex.Value == null)
{
return(true);
}
}
return(false);
}
bool IsNullRelationshipAssignment(IEntityMapping entity, EntityAssignment assignment)
{
var mm = entity.Get(assignment.Member);
if (mm != null && mm.IsRelationship)
{
var cex = assignment.Expression as ConstantExpression;
if (cex != null && cex.Value == null)
{
return(true);
}
}
return(false);
}
public override EntityExpression IncludeMembers(EntityExpression entity, Func <MemberInfo, bool> fnIsIncluded)
{
var assignments = this.GetAssignments(entity.Expression).ToDictionary(ma => ma.Member.Name);
bool anyAdded = false;
foreach (var mi in this.mapping.GetMappedMembers(entity.Entity))
{
EntityAssignment ea;
bool okayToInclude = !assignments.TryGetValue(mi.Name, out ea) || IsNullRelationshipAssignment(entity.Entity, ea);
if (okayToInclude && fnIsIncluded(mi))
{
ea = new EntityAssignment(mi, this.GetMemberExpression(entity.Expression, entity.Entity, mi));
assignments[mi.Name] = ea;
anyAdded = true;
}
}
if (anyAdded)
{
return(new EntityExpression(entity.Entity, this.BuildEntityExpression(entity.Entity, assignments.Values.ToList())));
}
return(entity);
}
private bool IsNullRelationshipAssignment(MappingEntity entity, EntityAssignment assignment)
{
if (this.mapping.IsRelationship(entity, assignment.Member))
{
var cex = assignment.Expression as ConstantExpression;
if (cex != null && cex.Value == null)
return true;
}
return false;
}
public override EntityExpression IncludeMembers(EntityExpression entity, Func<MemberInfo, bool> fnIsIncluded)
{
var assignments = this.GetAssignments(entity.Expression).ToDictionary(ma => ma.Member.Name);
bool anyAdded = false;
foreach (var mi in this.mapping.GetMappedMembers(entity.Entity))
{
EntityAssignment ea;
bool okayToInclude = !assignments.TryGetValue(mi.Name, out ea) || IsNullRelationshipAssignment(entity.Entity, ea);
if (okayToInclude && fnIsIncluded(mi))
{
ea = new EntityAssignment(mi, this.GetMemberExpression(entity.Expression, entity.Entity, mi));
assignments[mi.Name] = ea;
anyAdded = true;
}
}
if (anyAdded)
{
return new EntityExpression(entity.Entity, this.BuildEntityExpression(entity.Entity, assignments.Values.ToList()));
}
return entity;
}
