original_string: public function addGroup(ChildGroup $l)
      {
          if ($this->collGroups === null) {
              $this->initGroups();
              $this->collGroupsPartial = true;
          }
  
          if (!$this->collGroups->contains($l)) {
              $this->doAddGroup($l);
          }
  
          return $this;
      }
code: public function addGroup(ChildGroup $l)
      {
          if ($this->collGroups === null) {
              $this->initGroups();
              $this->collGroupsPartial = true;
          }
  
          if (!$this->collGroups->contains($l)) {
              $this->doAddGroup($l);
          }
  
          return $this;
      }
code_tokens: public function addGroup ( ChildGroup $ l ) { if ( $ this -> collGroups === null ) { $ this -> initGroups ( ) ; $ this -> collGroupsPartial = true ; } if ( ! $ this -> collGroups -> contains ( $ l ) ) { $ this -> doAddGroup ( $ l ) ; } return $ this ; }
docstring: Method called to associate a ChildGroup object to this object
  through the ChildGroup foreign key attribute.
  
  @param  ChildGroup $l ChildGroup
  @return $this|\gossi\trixionary\model\Sport The current object (for fluent API support)
docstring_tokens: Method called to associate a ChildGroup object to this object through the ChildGroup foreign key attribute .