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Time for Action in Java Generating code 128 barcode in Java Time for Action




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Time for Action using none tocompose none in asp.net web,windows application upc 1. Add an none none action add() at the end of the BooksController:. < php c lass BooksController extends AppController { var $name = "Books"; var $uses = array(); ...

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function view($id = 0) { $this->set("book", $this->books[$id] ); $this->pageTitle = "Welcome to the Packt Book Store!"; } function add() { $this->pageTitle = "Welcome to the Packt Book Store!"; } } >. 2. Create none none a view file add.ctp inside the /app/views/books/ folder:.

< php e cho $form->create(null, array("url" => "/books/view", "type" => "post")); echo $form->input("Book.book_title", array("type"=>"text")); [ 160 ]. 7 echo ec none none ho echo echo > $form->input("Book.author", array("type"=>"text")); $form->input("Book.isbn", array("type"=>"text")); m->input("Book.

isbn", $form->input("Book.release_date", array("type"=>"date")); $form->end("Submit"); ->end("Submit");. 3. Change the BooksController"s (/app/controllers/books_controller. php) view() action:.

< php c none for none lass BooksController extends AppController { var $name = "Books"; var $uses = array(); ...

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function view() { $date_str = $this->data["Book"]["release_date"]["year"] ."-". $this->data["Book"]["release_date"]["month"] .

"-". $this->data["Book"]["release_date"]["day"]; $this->data["Book"]["release_date"] = date( "M Y", strtotime( $date_str ) ); $this->set("book", $this->data["Book"] ); $this->pageTitle = "Welcome to the Packt Book Store!"; } function add() { $this->pageTitle = "Welcome to the Packt Book Store!"; } } >. 4. Visit t he following link, enter some dummy data, and press submit:. http://localhost/interfaces/books/add What Just Happened We created none none a new action add() in the BooksController. Inside the add() action, we just set the title of the page through the $pageTitle attribute. In the corresponding view file of the add() action, we created a form using the FormHelper.

The create() method of the FormHelper creates a formatted opening <form> tag:. $form-> create(null, array("url" => "/books/view", "type" => "post"));. [ 161 ]. Views: Creating User Interfaces The above none for none line of code outputs something like the following:. <form action="/interfaces/books/view" method="post"> The create none for none () method of the FormHelper takes two parameters: first one $model is the default model name for all the fields. The second one $options is an associative array that contains number of different key=>value pairs to customize the <form> tag. In our case, we did not assign any default model name for our form fields.

We passed two options through the second parameter. The first one url sets the URL where the form is to be submitted. The next one type specifies the method of the form submission.

The valid values include post, get, file etc. Then, we added some input fields to the form using the FormHelper"s input() method. The input() method also takes two parameters.

The first one $fieldName is used to define the field name. And the second one $options is an associative array containing different key=>value pairs to configure some additional options, like type of the input etc. We first created a simple text field using the input() method to take the title of a book from the user:.

echo $form ->input("Book.book_title", array("type"=>"text"));. The first none for none parameter provided to the input() method is Book.book_title. By setting the fieldname to Book.

book_title, we actually hooked up this input field to the Book model"s book_title field.. We could t hough do it in other ways by specifying a default model name (in our case, it would be Book) in $form->create() method as the first parameter and supplying only the fieldname (that is book_ title) in $form->input() method.. We also sp none for none ecified the type of the input field to text through the second parameter $options. Valid type values includes: "text", "checkbox", "datetime", "textarea", "date", "time" etc. This way, we then created two more input fields of type text to take author name and the ISBN number of the book:.

echo $form ->input("Book.author", array("type"=>"text")); echo $form->input("Book.isbn", array("type"=>"text"));.

And lastly none none , an input of type date to take the release date of the book:. echo $form ->input("Book.release_date", array("type"=>"date"));. [ 162 ]. 7 . The date type automatically creates three HTML <select> menus to take month, day, and the year. To learn m ore about the FormHelper and other helpers that Cake provides, please refer to the CakePHP official manual http://book.cakephp.org/.

We ended t none for none he form using the $form->end() method. This method outputs a submit button and a closing HTML form tag </form>. This is how the form we created should look like:.

The view() action of the BooksController is where this form data will be submitted. We will get all the submitted form data in this action through the $data attribute..

If an inpu none none t field"s fieldname is set to ModelName.fieldname, it will be available as $this->data["ModelName"]["fieldname"] from the controller action where the form is submitted..

Like the d ata entered in the form input with fieldname Book.book_title is available as $this->data["Book"]["book_title"] inside the view() action of the BooksController. Inside the controller action, we did some manipulation on the submitted form data.

Then, we forwarded the submitted book data to its corresponding view to display to the browser.. [ 163 ].
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