repo_zf1/documentation/manual/en/module_specs/Zend_Application-QuickStart.xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- Reviewed: no -->
<sect1 id="zend.application.quick-start">
    <title>Zend_Application Quick Start</title>

    <para>
        There are two paths to getting started with
        <classname>Zend_Application</classname>, and they depend on how you start your
        project. In each case, you always start with creating a
        <classname>Bootstrap</classname> class, and a related configuration file.
    </para>

    <para>
        If you plan on using <classname>Zend_Tool</classname> to create your project,
        continue reading below. If you will be adding
        <classname>Zend_Application</classname> to an existing project, you'll want to
        <link linkend="zend.application.quick-start.manual">skip ahead</link>.
    </para>

    <sect2 id="zend.application.quick-start.zend-tool">
        <title>Using Zend_Tool</title>

        <para>
            The quickest way to start using <classname>Zend_Application</classname> is to use
            <classname>Zend_Tool</classname> to generate your project. This will also create
            your <classname>Bootstrap</classname> class and file.
        </para>

        <para>
            To create a project, execute the <command>zf</command> command (on *nix systems):
        </para>

        <programlisting language="sh"><![CDATA[
% zf create project newproject
]]></programlisting>

        <para>
            Or the Windows <filename>zf.bat</filename> command:
        </para>

        <programlisting language="dos"><![CDATA[
C:> zf.bat create project newproject
]]></programlisting>

        <para>
            Both will create a project structure that looks like the following:
        </para>

        <programlisting language="text"><![CDATA[
newproject
|-- application
|   |-- Bootstrap.php
|   |-- configs
|   |   `-- application.ini
|   |-- controllers
|   |   |-- ErrorController.php
|   |   `-- IndexController.php
|   |-- models
|   `-- views
|       |-- helpers
|       `-- scripts
|           |-- error
|           |   `-- error.phtml
|           `-- index
|               `-- index.phtml
|-- library
|-- public
|   `-- index.php
`-- tests
    |-- application
    |   `-- bootstrap.php
    |-- library
    |   `-- bootstrap.php
    `-- phpunit.xml
]]></programlisting>

        <para>
            In the above diagram, your bootstrap is in
            <filename>newproject/application/Bootstrap.php</filename>, and looks like
            the following at first:
        </para>

        <programlisting language="php"><![CDATA[
class Bootstrap extends Zend_Application_Bootstrap_Bootstrap
{
}
]]></programlisting>

        <para>
            You'll also note that a configuration file,
            <filename>newproject/application/configs/application.ini</filename>, is
            created. It has the following contents:
        </para>

        <programlisting language="dosini"><![CDATA[
[production]
phpSettings.display_startup_errors = 0
phpSettings.display_errors = 0
includePaths.library = APPLICATION_PATH "/../library"
bootstrap.path = APPLICATION_PATH "/Bootstrap.php"
bootstrap.class = "Bootstrap"
resources.frontController.controllerDirectory = APPLICATION_PATH "/controllers"

[staging : production]

[testing : production]
phpSettings.display_startup_errors = 1
phpSettings.display_errors = 1

[development : production]
phpSettings.display_startup_errors = 1
phpSettings.display_errors = 1
]]></programlisting>

        <para>
            All settings in this configuration file are for use with
            <classname>Zend_Application</classname> and your bootstrap.
        </para>

        <para>
            Another file of interest is the
            <filename>newproject/public/index.php</filename> file, which invokes
            <classname>Zend_Application</classname> and dispatches it.
        </para>

        <programlisting language="php"><![CDATA[
// Define path to application directory
defined('APPLICATION_PATH')
    || define('APPLICATION_PATH',
              realpath(dirname(__FILE__) . '/../application'));

// Define application environment
defined('APPLICATION_ENV')
    || define('APPLICATION_ENV',
              (getenv('APPLICATION_ENV') ? getenv('APPLICATION_ENV')
                                         : 'production'));

/** Zend_Application */
require_once 'Zend/Application.php';

// Create application, bootstrap, and run
$application = new Zend_Application(
    APPLICATION_ENV,
    APPLICATION_PATH . '/configs/application.ini'
);
$application->bootstrap()
            ->run();
]]></programlisting>

        <para>
            To continue the quick start, please <link
            linkend="zend.application.quick-start.resources">skip to the
            Resources section</link>.
        </para>
    </sect2>

    <sect2 id="zend.application.quick-start.manual">
        <title>Adding Zend_Application to your application</title>

        <para>
            The basics of <classname>Zend_Application</classname> are fairly simple:
        </para>

        <itemizedlist>
            <listitem><para>
                Create an <filename>application/Bootstrap.php</filename> file, with the
                class <classname>Bootstrap</classname>.
            </para></listitem>

            <listitem><para>
                Create an <filename>application/configs/application.ini</filename>
                configuration file with the base configuration necessary for
                <classname>Zend_Application</classname>.
            </para></listitem>

            <listitem><para>
                Modify your <filename>public/index.php</filename> to utilize
                <classname>Zend_Application</classname>.
            </para></listitem>
        </itemizedlist>

        <para>
            First, create your <classname>Bootstrap</classname> class. Create a file,
            <filename>application/Bootstrap.php</filename>, with the following contents:
        </para>

        <programlisting language="php"><![CDATA[
class Bootstrap extends Zend_Application_Bootstrap_Bootstrap
{
}
]]></programlisting>

        <para>
            Now, create your configuration. For this tutorial, we will use an
            <acronym>INI</acronym> style configuration; you may, of course, use an
            <acronym>XML</acronym> or <acronym>PHP</acronym> configuration file as well. Create
            the file <filename>application/configs/application.ini</filename>, and provide the
            following contents:
        </para>

        <programlisting language="dosini"><![CDATA[
[production]
phpSettings.display_startup_errors = 0
phpSettings.display_errors = 0
includePaths.library = APPLICATION_PATH "/../library"
bootstrap.path = APPLICATION_PATH "/Bootstrap.php"
bootstrap.class = "Bootstrap"
resources.frontController.controllerDirectory = APPLICATION_PATH "/controllers"

[staging : production]

[testing : production]
phpSettings.display_startup_errors = 1
phpSettings.display_errors = 1

[development : production]
phpSettings.display_startup_errors = 1
phpSettings.display_errors = 1
]]></programlisting>

        <para>
            Now, let's modify your gateway script,
            <filename>public/index.php</filename>. If the file does not exist, create
            it; otherwise, replace it with the following contents:
        </para>

        <programlisting language="php"><![CDATA[
// Define path to application directory
defined('APPLICATION_PATH')
    || define('APPLICATION_PATH',
              realpath(dirname(__FILE__) . '/../application'));

// Define application environment
defined('APPLICATION_ENV')
    || define('APPLICATION_ENV',
              (getenv('APPLICATION_ENV') ? getenv('APPLICATION_ENV')
                                         : 'production'));

// Typically, you will also want to add your library/ directory
// to the include_path, particularly if it contains your ZF installed
set_include_path(implode(PATH_SEPARATOR, array(
    dirname(dirname(__FILE__)) . '/library',
    get_include_path(),
)));

/** Zend_Application */
require_once 'Zend/Application.php';

// Create application, bootstrap, and run
$application = new Zend_Application(
    APPLICATION_ENV,
    APPLICATION_PATH . '/configs/application.ini'
);
$application->bootstrap()
            ->run();
]]></programlisting>

        <para>
            You may note that the application environment constant value looks
            for an environment variable "APPLICATION_ENV". We recommend setting
            this in your web server environment. In Apache, you can set this
            either in your vhost definition, or in your <filename>.htaccess</filename>
            file. We recommend the following contents for your
            <filename>public/.htaccess</filename> file:
        </para>

        <programlisting language="conf"><![CDATA[
SetEnv APPLICATION_ENV development

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} -s [OR]
RewriteCond %{REQUEST_FILENAME} -l [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^.*$ - [NC,L]
RewriteRule ^.*$ index.php [NC,L]
]]></programlisting>

        <note>
            <title>Learn about mod_rewrite</title>

            <para>
                The above rewrite rules allow access to any file under your
                virtual host's document root. If there are files you do not want
                exposed in this way, you may want to be more restrictive in your
                rules. Go to the Apache website to <ulink
                    url="http://httpd.apache.org/docs/2.0/mod/mod_rewrite.html">learn
                more about mod_rewrite</ulink>.
            </para>
        </note>

        <para>
            At this point, you're all set to start taking advantage of
            <classname>Zend_Application</classname>.
        </para>
    </sect2>

    <sect2 id="zend.application.quick-start.resources">
        <title>Adding and creating resources</title>

        <para>
            If you followed the directions above, then your bootstrap class
            will be utilizing a front controller, and when it is run, it will
            dispatch the front controller. However, in all likelihood, you'll
            need a little more configuration than this.
        </para>

        <para>
            In this section, we'll look at adding two resources to your
            application. First, we'll set up your layouts, and then we'll
            customize your view object.
        </para>

        <para>
            One of the standard resources provided with
            <classname>Zend_Application</classname> is the "layout" resource. This
            resource expects you to define configuration values which it will
            then use to configure your <classname>Zend_Layout</classname> instance.
        </para>

        <para>
            To use it, all we need to do is update the configuration file.
        </para>

        <programlisting language="dosini"><![CDATA[
[production]
phpSettings.display_startup_errors = 0
phpSettings.display_errors = 0
bootstrap.path = APPLICATION_PATH "/Bootstrap.php"
bootstrap.class = "Bootstrap"
resources.frontController.controllerDirectory = APPLICATION_PATH "/controllers"
; ADD THE FOLLOWING LINES
resources.layout.layout = "layout"
resources.layout.layoutPath = APPLICATION_PATH "/layouts/scripts"

[staging : production]

[testing : production]
phpSettings.display_startup_errors = 1
phpSettings.display_errors = 1

[development : production]
phpSettings.display_startup_errors = 1
phpSettings.display_errors = 1
]]></programlisting>

        <para>
            If you haven't already, create the directory
            <filename>application/layouts/scripts/</filename>, and the file
            <filename>layout.phtml</filename> within that directory. A good starting
            layout is as follows (and ties in with the view resource covered
            next):
        </para>

        <programlisting language="php"><![CDATA[
<?php echo $this->doctype() ?>
<html>
<head>
    <?php echo $this->headTitle() ?>
    <?php echo $this->headLink() ?>
    <?php echo $this->headStyle() ?>
    <?php echo $this->headScript() ?>
</head>
<body>
    <?php echo $this->layout()->content ?>
</body>
</html>
]]></programlisting>

        <para>
            At this point, you will now have a working layout.
        </para>

        <para>
            Now, we'll add a custom view resource. When initializing the view,
            we'll want to set the <acronym>HTML</acronym> DocType and a default value for the title
            to use in the <acronym>HTML</acronym> head. This can be accomplished by editing your
            <classname>Bootstrap</classname> class to add a method:
        </para>

        <programlisting language="php"><![CDATA[
class Bootstrap extends Zend_Application_Bootstrap_Bootstrap
{
    protected function _initView()
    {
        // Initialize view
        $view = new Zend_View();
        $view->doctype('XHTML1_STRICT');
        $view->headTitle('My First Zend Framework Application');

        // Add it to the ViewRenderer
        $viewRenderer = Zend_Controller_Action_HelperBroker::getStaticHelper(
            'ViewRenderer'
        );
        $viewRenderer->setView($view);

        // Return it, so that it can be stored by the bootstrap
        return $view;
    }
}
]]></programlisting>

        <para>
            This method will be automatically executed when you bootstrap the
            application, and will ensure your view is initialized according to
            your application needs.
        </para>
    </sect2>

    <sect2 id="zend.application.quick-start.next-steps">
        <title>Next steps with Zend_Application</title>

        <para>
            The above should get you started with <classname>Zend_Application</classname>
            and creating your application bootstrap. From here, you should start
            creating resource methods, or, for maximum re-usability, resource
            plugin classes. Continue reading to learn more!
        </para>
    </sect2>
</sect1>