Relation one to one query results weird behavior

[filipe-carvalho]

Hi guys, bring some trouble again.

I've been facing some problems with one to one relations (one direction).
I have an entity ProjectDraft linked to Project, between an field published_project_id.

Here is the schema I am using:

ProjectDraft:
  actAs: { Timestampable: ~ }
  columns:
    name:               { type: string(100), notnull: true }
    project_state_id:   { type: integer}
    project_duration_id: { type: integer}
    published_project_id: { type: integer}
    
    address:            { type: string(255) }
    
  relations:
    Project:         { onDelete: CASCADE, class: Project, local: published_project_id, foreign: id, type: one }
    Scientist:       { onDelete: CASCADE, local: scientist_id, foreign: id, foreignAlias: Users, class: sfGuardUser } 
    State:           { onDelete: CASCADE, local: project_state_id, foreign: id, class: ProjectState } 



Project:
  actAs: { Timestampable: ~ }
  columns:
    name:               { type: string(100), notnull: true }
  relations:
    ProjectDraft:    { class: ProjectDraft, local: id, foreign: published_project_id, type: one, foreignType: one}

After this, I am trying to fetch one ProjectDraft object, trough this query:

$q = Doctrine_Query::create()
        ->from('ProjectDraft pd')
        ->leftJoin('pd.Project p')
        ->where('pd.id = 705')
        ->fetchOne();

Which gives me only ProjectDraft object, because published_project_id is NULL yet.
So far so good.

When I am trying to getProject, it gives me NULL, which is correct.

When I try to getProject()->exists() it give me Exception "Uncaught Error: Call to a member function exists() on null ", which is a king weird because exists() function return false, when we don't have a relation created.

After that, I trying to get_class of getProject, which should be Project or NULL or something like that (in my thoughts), but it give me the Class which I am debugging var, for instance, if you are in a projectAction class, it give me projectAction, it might be not normal this behavior I think.

I am thinking or I am doing anything wrong ?

Thanks in advance.