// Default contructor that set entity to field
public WikiModel(Wiki wiki)
{
this._wiki = wiki;
this._id = wiki.Id;
this._subject = wiki.Subject;
this._body = wiki.Body;
this._type = wiki.Type;
this._created_by = wiki.CreatedBy;
this._modified_by = wiki.ModifiedBy;
this._created_date = wiki.CreatedDate;
this._modified_date = wiki.ModifiedDate;
this._originalWiki = wiki.DeepClone();
}