SetRootMenu( 'Admin Page Framework Demo Plugin' );
// Add the sub menus and the pages
// You need to decide what page title and the slug to use.
// Important: do not use dots and hyphens in the page slug. Alphabets and numbers only!
// You are going to use the page slug later on for the callback method.
$this->SetCapability( 'read' ); // allow subscribers to access the pages
$this->AddSubMenu(
'My First Page', // page and menu title
'myfirstpage', // page slug - this will be the option name saved in the database
plugins_url( 'img/demo_01_32x32.png', __FILE__ )
); // set the screen icon, it should be 32 x 32.
$this->AddSubMenu(
'Import and Export Options',
'mysecondpage',
plugins_url( 'img/demo_02_32x32.png', __FILE__ ),
'manage_options' // restrict the access rights to only administrators.
);
$this->AddSubMenu(
'Change Style',
'mythirdpage',
plugins_url( 'img/demo_03_32x32.png', __FILE__ )
);
$this->AddSubMenu(
'Information',
'myfourthpage',
plugins_url( 'img/demo_04_32x32.png', __FILE__ )
);
// There are two kinds of tabs supported by this framework: page heading tabs and in-page tabs.
// Enable page heading tabs.
$this->ShowPageHeadingTabs( True );
// Add in-page tabs in the first page.
$this->AddInPageTabs(
'myfirstpage',
array( // slug => title
'firsttab' => 'Text Fields',
'secondtab' => 'Selectors and Checkboxes',
'thirdtab' => 'Image and Upload',
'fourthtab' => 'Verify Form Data',
'fifthtab' => 'Hidden Tab',
)
);
// This hides the fifth tab. But the page is still accessible. This is useful when you need to create a proceeding page for advanced sections
// that the user reaches after submitting a initial set up in the same page.
$this->HideInPageTab( 'myfirstpage', 'fifthtab', 'firsttab' ); // since 1.0.2.1
// Add form elements.
// Here we have four sections as an example.
// If you wonder what array keys are need to be used, please refer to http://en.michaeluno.jp/admin-page-framework/methods/
$this->AddFormSections(
// Section Arrays - numerically indexed.
array(
// Section Array 1
array(
'pageslug' => 'myfirstpage',
'tabslug' => 'firsttab',
'id' => 'text_fields',
'title' => 'Text Fields',
'description' => 'These are text type fields.',
'fields' =>
// Field Arrays
array(
// Text Field
array(
'id' => 'text',
'title' => 'Text',
'description' => 'Type somethig here.', // additional notes besides the form field
'type' => 'text',
'default' => 123456,
'size' => 40
),
// Password Field
array(
'id' => 'password',
'title' => 'Password',
'tip' => 'This input will be masked.',
'type' => 'password',
'size' => 20
),
// Text Area
array(
'id' => 'textarea',
'title' => 'Text Area',
'description' => 'Type a text string here.',
'type' => 'textarea',
'rows' => 6,
'cols' => 80,
'default' => 'Hello World! This is set as the default string.'
),
)
),
// Section Array 2
array(
'pageslug' => 'myfirstpage',
'tabslug' => 'secondtab',
'id' => 'selectors',
'title' => 'Selectors and Checkboxes',
'description' => 'These are selector type options.',
'fields' =>
// Field Arrays
array(
// Dropdown List
array(
'id' => 'select',
'title' => 'Drop Down List',
'description' => 'This is a drop down list.',
'type' => 'select',
'default' => 0,
'label' => array( 'red', 'blue', 'yellow', 'orange' )
),
// Radio Buttons
array(
'id' => 'radio',
'title' => 'Radio Button',
'description' => 'Choose one from the radio buttons.',
'type' => 'radio',
'label' => array( 'a' => 'apple', 'b' => 'banana', 'c' => 'cherry' ),
'default' => 'b' // banana
),
// Checkboxes
array(
'id' => 'checkboxs',
'title' => 'Multiple Checkboxes',
'description' => 'The description key can be omitted though.',
'type' => 'checkbox',
'label' => array( 'moon' => 'Moon', 'earth' => 'Earth', 'sun' => 'Sun', 'mars' => 'Mars' ),
'default' => array( 'moon' => True, 'earth' => False, 'sun' => True, 'mars' => False )
),
// Single Checkbox
array(
'id' => 'checkbox',
'title' => 'Single Checkbox',
'tip' => 'The description key can be omitted though.',
'description' => 'Check box\'s label can be a string, not an array.',
'type' => 'checkbox',
'label' => 'One', // notice that the label key is not an array
'default' => False
),
)
),
// Section Array 3
array(
'pageslug' => 'myfirstpage',
'tabslug' => 'thirdtab',
'id' => 'misc_types',
'title' => 'Hidden Field, Image, and File',
'description' => 'Hidden fields and file also can be created with field arrays..',
'fields' =>
// Field Arrays
array(
// Hidden fields - invisible but the set value be sent
array( // single hidden field
'id' => 'hidden_field',
'title' => 'Hidden Fields',
'type' => 'hidden',
'label' => 'This is sent in the hidden input field.', // use the label key to set the value
),
array( // multiple hidden fields
'id' => 'hidden_fields',
'type' => 'hidden',
'description' => 'Hidden fields are embedded here.',
'label' => array( 'a' => true, 'b' => false, 'c' =>false, 'd' => true, 'e' =>true ), // if the label key is an array, it will create multiple hidden keys with the values.
),
// Image Uploader - this is for uploading images. There are more keys for custom settings.
// For other keys, please refer to the Demo 12 plugin.
array(
'id' => 'upload_image',
'title' => 'Set Image',
'type' => 'image',
'default' => admin_url( 'images/wordpress-logo-2x.png' ) ,
),
// File - this is for uploading files. The values will be stored in the $_FILES array.
array( // single file upload
'id' => 'file_single_field',
'title' => 'Single Upload',
'type' => 'file',
),
array( // multiple file uploads
'id' => 'file_multiple_fields',
'title' => 'Multiple Uploads',
'type' => 'file',
// just set empty values so that the $_FILES array stores them in a single array key.
'label' => array( '', '', '', '' ),
),
)
),
// Section Array 4
array(
'pageslug' => 'myfirstpage',
'tabslug' => 'firsttab',
'id' => 'buttons',
'title' => 'Submit Buttons',
'description' => 'Buttons also can be created with field arrays.',
'fields' =>
// Field Arrays
array(
// Submit Buttons
array( // single button
'id' => 'reload',
'type' => 'submit', // the submit type creates a button
'label' => 'Reload the Page',
),
array( // multiple buttons
'id' => 'update',
'type' => 'submit', // the submit type creates a button
'label' => array(
'save' => 'Update the Options',
'delete' => 'Delete the Options'
),
'delimiter' => ' ',
),
)
),
)
);
// For the second page - export and import options.
$this->AddFormSections(
array(
array(
'pageslug' => 'mysecondpage',
'id' => 'section_import_and_export',
'title' => 'Import and Export',
'description' => 'With the import and export buttons, option can be saved to a file and restored. ' .
'For that, the import and export types need to be passed to the field array.',
'fields' =>
array(
array( // this field type is file and it is for uploading a file.
'id' => 'field_import_button',
'title' => 'Import',
'description' => 'Choose a file to import.',
'update_message' => 'Options were imported and updated.',
'type' => 'import', // set the input field type to import
'label' => 'Import Options From File', // set the input field type to file
'delimiter' => ' ',
),
array(
'id' => 'field_export_button',
'title' => 'Export',
'type' => 'export', // set the input field type to export
'label' => 'Export Options',
)
)
),
)
);
// for the fourth tab in the first page
$this->AddFormSections(
array(
array(
'pageslug' => 'myfirstpage',
'tabslug' => 'fourthtab',
'id' => 'section_verify_text',
'title' => 'Verify Text Input',
'description' => 'Submitted data can be verified. If it fails, show an error message.',
'fields' =>
array(
array(
'id' => 'field_verify_text', // the option key name saved in the database. You will need this when retrieving the saved value later.
'title' => 'Verify Text Form Field',
'tip' => 'Try entering something that is not a number.', // appears on mouse hover on the title
'error' => 'Please enter a number! This message is set in the field array with the error key. The invalid Value: ',
'description' => 'Try entering something that is not a number.', // additional notes besides the form field
'type' => 'text', // set the input field type to be text
'default' => 'xyz', // the default value is set here.
),
)
),
)
);
}
// Step 4. Define the callback methods.
/*
* The first sub page.
* */
// Notice that the name of the method is 'do_' + page slug.
// If you wonder what else we have for this kind of pre-defined methods and callbacks,
// please refer to http://en.michaeluno.jp/admin-page-framework/hooks-and-callbacks/
function do_myfirstpage() {
// Disable the below output in the fifth tab.
if ( isset( $_GET['tab'] ) && $_GET['tab'] == 'fifthtab' ) return;
submit_button(); // the save button
// Show the saved option value. The option key is the string passed to the first parameter to the constructor of the class (at the end of this plugin).
// If the option key is not set, the page slug will be used.
if ( $options = get_option( 'demo_my_option_key' ) )
echo 'Saved values
option table key: demo_my_option_key
'
. '' . print_r( ( array ) $options, true ) . '
';
}
/*
* First Tab
* */
function do_myfirstpage_firsttab() {
$strURL = admin_url( 'admin.php?page=myfirstpage&tab=fifthtab' );
echo '' . __( 'Go to the hidden page.', 'admin-page-framework' ). '
';
}
/*
* * Fifth Tab - a hidden tab page which belongs to the first tab.
*/
function head_myfirstpage_fifthtab( $strHTML ) { // 'head_' + page slug + tab slug
$strURL = admin_url( 'admin.php?page=myfirstpage&tab=firsttab' );
return $strHTML
. 'Hidden Page
'
. 'This is a hidden page.
'
. '' . __( 'Go Back', 'admin-page-framework' ) . '
';
}
// This is a valiadation callback method with the name of 'validation_' + page slug + _ + tab slug.
// Whennever you need to check the submitted data, use this method. The returned array will be saved in the database.
function validation_myfirstpage_firsttab( $arrInput ) {
// In order not to do anything with the submitted data, return an empty array.
// ( Or altenatively retrieve the saved option array from the database and return it. )
if ( isset( $arrInput['myfirstpage']['buttons']['reload'] ) ) return array();
// To discard all the saved option values, return null.
if ( isset( $arrInput['myfirstpage']['buttons']['update']['delete'] ) ) {
add_settings_error(
$_POST['pageslug'],
'can_be_any_string',
__( 'Options were deleted.', 'admin-page-framework' ),
'updated'
);
return null;
}
// add_settings_error() is useful to display the submitted values.
add_settings_error(
$_POST['pageslug'],
'can_be_any_string',
'Check Submitted Values
' .
'$arrInput - the passed value to the validation callback
' . print_r( $arrInput, true ) . '
' .
'$_POST
' . print_r( $_POST, true ) . '
',
'updated'
);
// The returned value will be saved in the database.
return $arrInput;
}
function validation_myfirstpage_thirdtab( $arrInput ) { // 'validation_' + page slug + _ + tab slug
// This is useful to check the submitted values.
$arrErrors = $_FILES['demo_my_option_key']['error']['myfirstpage']['misc_types']['file_multiple_fields'];
$arrErrors[] = $_FILES['demo_my_option_key']['error']['myfirstpage']['misc_types']['file_single_field'];
if ( in_array( 0, $arrErrors ) )
add_settings_error(
$_POST['pageslug'],
'can_be_any_string',
'File was uploaded
' .
'$_FILES
' . print_r( $_FILES, true ) . '
',
'updated'
);
return $arrInput;
}
// The verification callback method for the fourth tab in the first sub page.
function validation_myfirstpage_fourthtab( $arrInput ) { // 'validation_' + page slug + _ + tab slug
// Set the flag
$bIsValid = True;
// We store values that have an error in an array and going to store it in a temporary area of the database called transient.
// The used name of the transient is a md5 hash of 'extended class name' + '_' + 'page slug'. The library class will serch for this transient
// when it renders the fields and if it is found, it will display the error message set in the field array.
$arrErrors = array();
// Check if the submitted value is numeric.
if ( !is_numeric( $arrInput['myfirstpage']['section_verify_text']['field_verify_text'] ) ) {
$arrErrors['section_verify_text']['field_verify_text'] = $arrInput['myfirstpage']['section_verify_text']['field_verify_text'];
$bIsValid = False;
}
// If everything is okay, return the passed array so that Settings API can update the data.
if ( $bIsValid ) {
// this displays message
add_settings_error( $_POST['pageslug'], 'can_be_any_string', __( 'The options were updated.' ), 'updated' );
delete_transient( md5( get_class( $this ) . '_' . $_POST['pageslug'] ) ); // delete the temporary data for errors.
return $arrInput;
}
// This line is reached if there are invalid values.
// Store the error array in the transient with the name of a MD5 hash string that consists of the extended class name + _ + page slug.
set_transient( md5( get_class( $this ) . '_' . $_POST['pageslug'] ), $arrErrors, 60*5 ); // store it for 5 minutes ( 60 seconds * 5 )
// This displays the error message
add_settings_error( $_POST['pageslug'], 'can_be_any_string', __( 'The value must be numeric.' ) . '
Submitted Data: ' . print_r( $arrInput, true ) );
// Returning an empty array will not change options.
return array();
}
/*
* The second sub page.
* */
// These are filters so the filtering value is passed to the parameter and it needs to be returned.
function head_mysecondpage( $strContent ) { // 'head_' + page slug
return $strContent . 'This message is inserted with the method: ' . __METHOD__ . '
';
}
function content_mysecondpage( $strContent ) { // 'content_' + page slug
return $strContent . 'After saving some values in the first page. Try exporting the options and change some values. Then import the file and see if the settings gets reverted.
';
}
/*
* The third sub page.
* */
// Apply the custom style to the third page only.
function style_mythirdpage( $strRules ) { // 'style_' + page slug
return $strRules . '#wpwrap {background-color: #EEE;}';
}
function do_mythirdpage() { // 'do_' + page slug
echo 'See, the background color is changed.
';
}
/*
* The fourth sub page.
* */
function content_myfourthpage( $strContent ) {
return $strContent . 'Documentation
'
. ''
. 'Participate in the Project
'
. 'The repository is available at GitHub. https://github.com/michaeluno/admin-page-framework
'
;
}
function style_myfourthpage( $strRules ) {
return $strRules . ' ul.admin-page-framework { list-style:disc; padding-left: 20px; }';
}
}
// Step 5. Instantiate the class object.
new APF_AdminPageFrameworkDemo(
'demo_my_option_key', // the first parameter specifies the option key to use. If not set, each page slug will be used for the key.
__FILE__ // this tells the framework the caller script path so that the script info will be embedded in the footer.
);
/*
*
* If you find this framework useful, include it in your project!
* And please leave a nice comment in the review page, http://wordpress.org/support/view/plugin-reviews/admin-page-framework
*
* If you have a suggestion, the GitHub repository is open to anybody so post an issue there.
* https://github.com/michaeluno/admin-page-framework/issues
*
* Happy coding!
*
*/