| 1 |  |  | <?php | 
                            
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                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 | 1 |  | if (!class_exists('UserDefinedForm')) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 | 1 |  |     return; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | class FormBlock extends Block | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |      * @var string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |     private static $singular_name = 'Form Block'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |      * @var string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |     private static $plural_name = 'Form Blocks'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |      * @var array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |     private static $db = array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |         'Content' => 'HTMLText', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |     ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |      * @var array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |     private static $has_one = array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |         'Form' => 'UserDefinedForm', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |     ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |      * @return FieldList | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 | 1 |  |     public function getCMSFields() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 | 1 |  |         $fields = singleton('Block')->getCMSFields(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 | 1 |  |         if (class_exists('UserDefinedForm')) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |             $fields->addFieldToTab('Root.Main', DropdownField::create( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |                 'FormID', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |                 'Form', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |                 UserDefinedForm::get()->map() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |                 )->setEmptyString('') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |                 ->setDescription('select an existing User Defined Form to display') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |             ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 | 1 |  |         $fields->addFieldToTab('Root.Main', HtmlEditorField::create('Content')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 | 1 |  |         return $fields; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |      * @return Forms|HTMLText | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 57 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 58 |  |  |     public function BlockForm() | 
            
                                                                        
                            
            
                                    
            
            
                | 59 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 60 |  |  |         if ($this->Form()->exists()) { | 
                            
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                | 61 |  |  |             $controller = new UserDefinedForm_Controller($this->Form()); | 
                            
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                | 62 |  |  |             $current = Controller::curr(); | 
            
                                                                        
                            
            
                                    
            
            
                | 63 |  |  |             if ($current && $current->getAction() == 'finished') { | 
            
                                                                        
                            
            
                                    
            
            
                | 64 |  |  |                 return $controller->renderWith('ReceivedFormSubmission'); | 
            
                                                                        
                            
            
                                    
            
            
                | 65 |  |  |             } | 
            
                                                                        
                            
            
                                    
            
            
                | 66 |  |  |             $form = $controller->Form(); | 
            
                                                                        
                            
            
                                    
            
            
                | 67 |  |  |             return $form; | 
            
                                                                        
                            
            
                                    
            
            
                | 68 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 69 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |      * @param null $member | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |      * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 | 1 |  |     public function canCreate($member = null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 | 1 |  |         if (!class_exists('UserDefinedForm')) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 | 1 |  |             return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |         return parent::canCreate(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |      * @param null $member | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |      * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 | 1 |  |     public function canView($member = null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 | 1 |  |         if (!class_exists('UserDefinedForm')) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 | 1 |  |             return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |         return parent::canView(); | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 93 |  |  |     } | 
            
                                                        
            
                                    
            
            
                | 94 |  |  | } | 
            
                        
The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.