Active 5 years, 2 months ago. Viewed 3k times. I'm currently working on a PDF view for my cake application and found this tutorial. Improve this question. Marek Skiba 2, 1 1 gold badge 22 22 silver badges 29 29 bronze badges. Lot's going wrong on line 2, we need to see some actual code. You're calling functions of an object that doesn't exit. Since you the error is coming from a view, then this is more than likely an error from a missing helper.
You need to post your index. It's hard to figure out errors with no context. Labels: cakephp , pdf , tcpdf. Ajit 24 January at Manoj Kulkarni 18 June at Ajit 19 June at Unknown 16 April at Anonymous 14 October at Ajit 15 October at Unknown 6 January at This method outputs an opening form tag.
All parameters are optional. If create is called with no parameters supplied, it assumes you are building a form that submits to the current controller, via the current URL. The default method for form submission is POST. If you were to call create inside the view for UsersController::add , you would see something like the following output in the rendered view:. An array containing the 'schema' key, will map to ArrayContext which allows you to create simple data structures to build forms against.
Once a form has been created with a context, all controls you create will use the active context. In the case of an ORM backed form, FormHelper can access associated data, validation errors and schema metadata.
You can close the active context using the end method, or by calling create again. However, you can also use the same logic to create an edit form. The FormHelper uses the Entity object to automatically detect whether to create an add or edit form. Since this is an edit form, a hidden input field is generated to override the default HTTP method. This special array can contain a number of different key-value pairs that affect the way the form tag is generated. Valid values:. If no type is provided then it will be autodetected based on the form context.
Can be a string or a URL array. Defaults to Configure::read 'App. Any templates provided will be merged on top of the already loaded templates. For example the EntityContext accepts a 'table' option that allows you to set the specific Table class the form should be based on. Default is false. If however, you are building a form that needs to read from the query string, you can use valueSource to change where FormHelper reads data input data from:. The supported sources are context , data and query.
You can use one or more sources. Any widgets generated by FormHelper will gather their values from the sources, in the order you setup. The value sources will be reset to the default ['context'] when end is called. By using the type option you can change the HTTP method a form will use:. This is to be used if there are any file elements inside the form. The absence of the proper enctype attribute will cause the file uploads not to function.
Using the 'url' option allows you to point the form to a specific action in your current controller or another controller in your application. Often models will have multiple validation sets, and you will want FormHelper to mark fields required based on a the specific validation rules your controller action is going to apply. For example, your Users table has specific validation rules that only apply when an account is being registered:.
If you are creating a form for associated entities, you can define validation rules for each association by using an array:. Once you have implemented this interface you can wire your new context into the FormHelper. It is often best to do this in a View. Context factory functions are where you can add logic for checking the form options for the correct type of entity.
If matching input data is found you can return an object. If there is no match return null. The control method lets you to generate complete form controls. These controls will include a wrapping div , label , control widget, and validation error if necessary. By using the metadata in the form context, this method will choose an appropriate control type for each field.
Internally control uses the other methods of FormHelper. By default the control method will employ the following widget templates:. The type of control created when we provide no additional options to specify the generated element type is inferred via model introspection and depends on the column datatype:.
As a small subtlety, generating specific elements via the control form method will always also generate the wrapping div , by default.
Generating the same type of element via one of the specific form methods e. Depending on your needs you can use one or another. You can disable automatic required flagging using the 'required' option:. You can use the control method of the FormHelper to create appropriate controls for all of these form fields:. Besides the specific Options for Control , you also can specify any option accepted by corresponding specific method for the chosen or inferred by CakePHP control type and any HTML attribute for instance onfocus.
If you want to create a select form field while using a belongsTo or hasOne relation, you can add the following to your UsersController assuming your User belongsTo Group :. To make a select box for a belongsToMany Groups association you can add the following to your UsersController:. If your model name consists of two or more words e.
You should not use FormHelper::control to generate submit buttons. You can create controls for associated models, or arbitrary models by passing in association. Any dots in your field names will be converted into nested request data. For example, if you created a field with a name 0.
This convention makes it easy to save data with the ORM. Details for the various association types can be found in the Creating Inputs for Associated Data section. When creating datetime related controls, FormHelper will append a field-suffix. You may notice additional fields named year , month , day , hour , minute , or meridian being added. These fields will be automatically converted into DateTime objects when entities are marshalled. This subsection will cover the options specific to FormHelper::control.
In addition to the field types found in the Creating Form Controls , you can also create 'file' , 'password' , and any other type supported by HTML5. By specifying a 'type' you will force the type of the generated control, overriding model introspection. Defaults to null. You can set this key to the string you would like to be displayed within the label that usually accompanies the input HTML element.
Alternatively, set this key to false to disable the generation of the label element. Set this to an array to provide additional options for the label element. Is called before each view file is rendered. This includes elements, views, parent views and layouts. Is called after each view file is rendered. Receives the file being rendered as an argument. Table of Contents. Improve This Doc. Note Aliasing a helper replaces that instance anywhere that helper is used, including inside other Helpers.
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