Plugin settings not saving

时间：2011-07-20 作者：Slushman

我在保存插件设置方面花了很多时间。我已经检查了很多次代码，我不得不认为我只是错过了一些东西。我正在遵循设置API，但我在插件设置页面上所做的任何更改都不会保存。我错过了什么？

function __construct() {
self::$instance = $this;

//  Add "Settings" link to plugin page
add_filter( \'plugin_action_links_\' . plugin_basename( __FILE__ ) , array( $this, \'settings_link\' ) );

// Creates the CEMB Seminar submenu
add_action( \'admin_menu\', array( $this, \'add_menu\' ) );

// Register and define the settings
add_action( \'admin_init\', array( $this, \'settings_init\' ) );

} // End of __construct()


/***** Menus *****/

//  Add "Settings" link to plugin page
function settings_link( $links ) {
    $settings_link = sprintf( \'<a href="%s">%s</a>\', admin_url( \'options-general.php?page=cemb-seminar\' ), __( \'Settings\' ) );
    array_unshift( $links, $settings_link );
    return $links;
}

// Creates the CEMB Seminar submenu
function add_menu() {
    add_submenu_page( 
        \'edit.php?post_type=cemb_seminar\', 
        __( \'Course Requirements\' ), 
        __( \'Course Requirements\' ), 
        \'manage_options\', 
        \'cemb-seminar\', 
        array( $this, \'settings_page\' )
    );
}

/***** Course Requirement Settings *****/

/* Creates new database fields */
function settings_init() {
    $options = array(
        \'cemb_seminar_seminars_college\' => \'0\',
        \'cemb_seminar_showcases_college\' => \'0\',
        \'cemb_seminar_writers_college\' > \'0\',
        \'cemb_seminar_aet_college\' => \'0\',
        \'cemb_seminar_mbu_college\' => \'0\',
        \'cemb_seminar_eis_college\' => \'0\',
        \'cemb_seminar_sng_college\' => \'0\',
    );
    update_option( \'cemb_seminar_options\', $options );


    register_setting( 
        \'cemb_seminar_options\', 
        \'cemb_seminar_options\' 
    );
    add_settings_section( 
        \'cemb_seminar_reqs_college\', 
        \'Course Requirements\', 
        array( $this, \'reqs_college_fn\' ), 
        \'cemb-seminar\'
    );
    add_settings_field( 
        \'cemb_seminar_seminars_college_field\', 
        \'Seminars\', 
        array( $this, \'seminars_college_fn\' ), 
        \'cemb-seminar\', 
        \'cemb_seminar_reqs_college\' 
    );
    add_settings_field( 
        \'cemb_seminar_showcases_college_field\', 
        \'Showcases\', 
        array( $this, \'showcases_college_fn\' ), 
        \'cemb-seminar\', 
        \'cemb_seminar_reqs_college\' 
    );
    add_settings_field( 
        \'cemb_seminar_writers_college_field\', 
        \'Writer\\\'s Nights\', 
        array( $this, \'writers_college_fn\' ), 
        \'cemb-seminar\', 
        \'cemb_seminar_reqs_college\' 
    );
    add_settings_field( 
        \'cemb_seminar_aet_college_field\', 
        \'AET Seminars\', 
        array( $this, \'aet_college_fn\' ), 
        \'cemb-seminar\', 
        \'cemb_seminar_reqs_college\' 
    );
    add_settings_field( 
        \'cemb_seminar_mbu_college_field\', 
        \'MBU Seminars\', 
        array( $this, \'mbu_college_fn\' ), 
        \'cemb-seminar\', 
        \'cemb_seminar_reqs_college\' 
    );
    add_settings_field( 
        \'cemb_seminar_eis_college_field\', 
        \'EIS Seminars\', 
        array( $this, \'eis_college_fn\' ), 
        \'cemb-seminar\', 
        \'cemb_seminar_reqs_college\' 
    );
    add_settings_field( 
        \'cemb_seminar_sng_college_field\', 
        \'SNG Seminars\', 
        array( $this, \'sng_college_fn\' ), 
        \'cemb-seminar\', 
        \'cemb_seminar_reqs_college\' 
    );

} // End of settings_init()

// Add note about the course requirements settings
function reqs_college_fn() {
    echo \'<p>The course requirement options below will apply to all students for all majors.</p>\';
}

// Checks for the selected value in the drop menus
function course_req_selected( $selected, $option ) {

    // Get options first
    $options = get_option( \'cemb_seminar_options\' );

    // Check if the option matches the input
    if ( $options[\'$option\'] == $selected ) {
        echo \' selected="selected"\';
    }   
} // End of course_req_selected()

// Add college-wide Seminars requirements Field
function seminars_college_fn() {

    // Get options from database
    $options = get_option( \'cemb_seminar_options\' );
    $option = $options[\'cemb_seminar_seminars_college\'];

    // Build the select form ?>
    <select id="cemb_seminar_seminars_college" class="cemb_seminar_settings_field" name="cemb_seminar_options[cemb_seminar_seminars_college]">
        <option value="0" <?php if ( $option == \'0\' ) { echo \'selected="selected"\'; } ?>>0</option>
        <option value="1" <?php if ( $option == \'1\' ) { echo \'selected="selected"\'; } ?>>1</option>
        <option value="2" <?php if ( $option == \'2\' ) { echo \'selected="selected"\'; } ?>>2</option>
        <option value="3" <?php if ( $option == \'3\' ) { echo \'selected="selected"\'; } ?>>3</option>
        <option value="4" <?php if ( $option == \'4\' ) { echo \'selected="selected"\'; } ?>>4</option>
        <option value="5" <?php if ( $option == \'5\' ) { echo \'selected="selected"\'; } ?>>5</option>
    </select> <?php

} // End of seminars_college_fn()

// Add college-wide Showcases requirements Field
function showcases_college_fn() {

    // Get options from database
    $options = get_option( \'cemb_seminar_options\' );
    $option = $options[\'cemb_seminar_showcases_college\'];

    // Build the select form ?>
    <select id="cemb_seminar_showcases_college" class="cemb_seminar_settings_field" name="cemb_seminar_options[cemb_seminar_showcases_college]">
        <option value="0" <?php if ( $option == \'0\' ) { echo \'selected="selected"\'; } ?>>0</option>
        <option value="1" <?php if ( $option == \'1\' ) { echo \'selected="selected"\'; } ?>>1</option>
        <option value="2" <?php if ( $option == \'2\' ) { echo \'selected="selected"\'; } ?>>2</option>
        <option value="3" <?php if ( $option == \'3\' ) { echo \'selected="selected"\'; } ?>>3</option>
        <option value="4" <?php if ( $option == \'4\' ) { echo \'selected="selected"\'; } ?>>4</option>
        <option value="5" <?php if ( $option == \'5\' ) { echo \'selected="selected"\'; } ?>>5</option>
    </select> <?php

} // End of showcases_college_fn()

// Add college-wide Writer\'s Night requirements field
function writers_college_fn() {

    // Get options from database
    $options = get_option( \'cemb_seminar_options\' );
    $option = $options[\'cemb_seminar_writers_college\'];

    // Build the select form */?>
    <select id="cemb_seminar_writers_college" class="cemb_seminar_settings_field" name="cemb_seminar_options[cemb_seminar_writers_college]">
        <option value="0" <?php if ( $option == \'0\' ) { echo \'selected="selected"\'; } ?>>0</option>
        <option value="1" <?php if ( $option == \'1\' ) { echo \'selected="selected"\'; } ?>>1</option>
        <option value="2" <?php if ( $option == \'2\' ) { echo \'selected="selected"\'; } ?>>2</option>
        <option value="3" <?php if ( $option == \'3\' ) { echo \'selected="selected"\'; } ?>>3</option>
        <option value="4" <?php if ( $option == \'4\' ) { echo \'selected="selected"\'; } ?>>4</option>
        <option value="5" <?php if ( $option == \'5\' ) { echo \'selected="selected"\'; } ?>>5</option>
    </select> <?php

} // End of writers_college_fn()

// Add college-wide AET Seminars requirements field
function aet_college_fn() {

    // Get options from database
    $options = get_option( \'cemb_seminar_options\' );
    $option = $options[\'cemb_seminar_aet_college\'];

    // Build the select form ?>
    <select id="cemb_seminar_aet_college" class="cemb_seminar_settings_field" name="cemb_seminar_options[cemb_seminar_aet_college]">
        <option value="0" <?php if ( $option == \'0\' ) { echo \'selected="selected"\'; } ?>>0</option>
        <option value="1" <?php if ( $option == \'1\' ) { echo \'selected="selected"\'; } ?>>1</option>
        <option value="2" <?php if ( $option == \'2\' ) { echo \'selected="selected"\'; } ?>>2</option>
        <option value="3" <?php if ( $option == \'3\' ) { echo \'selected="selected"\'; } ?>>3</option>
        <option value="4" <?php if ( $option == \'4\' ) { echo \'selected="selected"\'; } ?>>4</option>
        <option value="5" <?php if ( $option == \'5\' ) { echo \'selected="selected"\'; } ?>>5</option>
    </select> <?php

} // End of aet_college_fn()

// Add college-wide MBU Seminars requirements field
function mbu_college_fn() {

    // Get options from database
    $options = get_option( \'cemb_seminar_options\' );
    $option = $options[\'cemb_seminar_mbu_college\'];

    // Build the select form ?>
    <select id="cemb_seminar_mbu_college" class="cemb_seminar_settings_field" name="cemb_seminar_options[cemb_seminar_mbu_college]">
        <option value="0" <?php if ( $option == \'0\' ) { echo \'selected="selected"\'; } ?>>0</option>
        <option value="1" <?php if ( $option == \'1\' ) { echo \'selected="selected"\'; } ?>>1</option>
        <option value="2" <?php if ( $option == \'2\' ) { echo \'selected="selected"\'; } ?>>2</option>
        <option value="3" <?php if ( $option == \'3\' ) { echo \'selected="selected"\'; } ?>>3</option>
        <option value="4" <?php if ( $option == \'4\' ) { echo \'selected="selected"\'; } ?>>4</option>
        <option value="5" <?php if ( $option == \'5\' ) { echo \'selected="selected"\'; } ?>>5</option>
    </select> <?php

} // End of mbu_college_fn()

// Add college-wide EIS Seminars requirements field
function eis_college_fn() {

    // Get options from database
    $options = get_option( \'cemb_seminar_options\' );
    $option = $options[\'cemb_seminar_eis_college\'];

    // Build the select form ?>
    <select id="cemb_seminar_eis_college" class="cemb_seminar_settings_field" name="cemb_seminar_options[cemb_seminar_eis_college]">
        <option value="0" <?php if ( $option == \'0\' ) { echo \'selected="selected"\'; } ?>>0</option>
        <option value="1" <?php if ( $option == \'1\' ) { echo \'selected="selected"\'; } ?>>1</option>
        <option value="2" <?php if ( $option == \'2\' ) { echo \'selected="selected"\'; } ?>>2</option>
        <option value="3" <?php if ( $option == \'3\' ) { echo \'selected="selected"\'; } ?>>3</option>
        <option value="4" <?php if ( $option == \'4\' ) { echo \'selected="selected"\'; } ?>>4</option>
        <option value="5" <?php if ( $option == \'5\' ) { echo \'selected="selected"\'; } ?>>5</option>
    </select> <?php

} // End of eis_college_fn()

// Add college-wide SNG Seminars requirements field
function sng_college_fn() {

    // Get options from database
    $options = get_option( \'cemb_seminar_options\' );
    $option = $options[\'cemb_seminar_sng_college\'];

    // Build the select form ?>
    <select id="cemb_seminar_sng_college" class="cemb_seminar_settings_field" name="cemb_seminar_options[cemb_seminar_sng_college]">
        <option value="0" <?php if ( $option == \'0\' ) { echo \'selected="selected"\'; } ?>>0</option>
        <option value="1" <?php if ( $option == \'1\' ) { echo \'selected="selected"\'; } ?>>1</option>
        <option value="2" <?php if ( $option == \'2\' ) { echo \'selected="selected"\'; } ?>>2</option>
        <option value="3" <?php if ( $option == \'3\' ) { echo \'selected="selected"\'; } ?>>3</option>
        <option value="4" <?php if ( $option == \'4\' ) { echo \'selected="selected"\'; } ?>>4</option>
        <option value="5" <?php if ( $option == \'5\' ) { echo \'selected="selected"\'; } ?>>5</option>
    </select> <?php

} // End of sng_college_fn()

// Creates the course requirements page
function settings_page() {
    ?>
    <div class="wrap">
    <div class="icon32" style="background-image:url(<?php echo WP_PLUGIN_URL . \'/cemb-seminar/images/cemb-logo32x32.png\'; ?>); background-repeat:no-repeat;"><br /></div>
    <h2>Course Requirements</h2>
    <form method="post" action="options.php">
    <?php settings_fields( \'cemb_seminar_options\' ); ?>
    <?php do_settings_sections( \'cemb-seminar\' ); ?>
    <br />
    <input class="button-primary" type="submit" name="Submit" value=" <?php _e( \'Save Settings\' ); ?> " />
    </form>
    </div> <?php

} // End of settings_page()

2 个回复
最合适的回答,由SO网友:Bainternet 整理而成

问题是您一直将值放在这里：

 $options = array(
        \'cemb_seminar_seminars_college\' => \'0\',
        \'cemb_seminar_showcases_college\' => \'0\',
        \'cemb_seminar_writers_college\' > \'0\',
        \'cemb_seminar_aet_college\' => \'0\',
        \'cemb_seminar_mbu_college\' => \'0\',
        \'cemb_seminar_eis_college\' => \'0\',
        \'cemb_seminar_sng_college\' => \'0\',
    );
    update_option( \'cemb_seminar_options\', $options );
将其更改为

$options = get_option(\'cemb_seminar_options\');
if ($options === false){
$options = array(
            \'cemb_seminar_seminars_college\' => \'0\',
            \'cemb_seminar_showcases_college\' => \'0\',
            \'cemb_seminar_writers_college\' > \'0\',
            \'cemb_seminar_aet_college\' => \'0\',
            \'cemb_seminar_mbu_college\' => \'0\',
            \'cemb_seminar_eis_college\' => \'0\',
            \'cemb_seminar_sng_college\' => \'0\',
        );
        update_option( \'cemb_seminar_options\', $options );
}
因此，只有在数据库中未设置“cemb\\u seminar\\u options”时，它才会运行

SO网友:Grégoire Sailland

或者就这么做

$options = get_option(\'cemb_seminar_options\',array(
            \'cemb_seminar_seminars_college\' => \'0\',
            \'cemb_seminar_showcases_college\' => \'0\',
            \'cemb_seminar_writers_college\' > \'0\',
            \'cemb_seminar_aet_college\' => \'0\',
            \'cemb_seminar_mbu_college\' => \'0\',
            \'cemb_seminar_eis_college\' => \'0\',
            \'cemb_seminar_sng_college\' => \'0\',
        ));

https://developer.wordpress.org/reference/functions/get_option/

get\\u选项（字符串$选项，混合$默认值=false）

结束
标签： plugin-development   settings-api   小码农  

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