Custom options in plugin, register_settings not working as no options.php?

Question

I'm having trouble getting a custom plugin to save options, as it cannot find options.php (and I don't know where it's supposed to be)

The full code for the plugin:

add_action( 'admin_menu', 'dotmailer_menu' );


function dotmailer_menu() {
    add_options_page( 'Dotmailer Options', 'Dotmailer Details', 'manage_options', 'dotmailer', 'dotmailer_options' );
}


function dotmailer_options() {
?>

<div class="wrap">
    <form method="post" action="options.php">
    <?php settings_fields( 'settings-group' ); ?>
    <?php do_settings_sections( 'settings-group' ); ?>

        <label>API key</label><br />
        <input type="email" name="apiemail" value="<?php echo get_option('apiemail'); ?>"><br />
        <label>Password</label><br />
        <input type="password" name="apipassword" value="<?php echo get_option('apipassword'); ?>"><br />
        <p><input type="submit" value="Save" class="button-primary" /></p>
    </form>
</div>
<?php 
}

function register_settings() {  
        register_setting('settings-group','apiemail');
        register_setting('settings-group','apipassword');
    }

When I submit the form, it simply returns an error saying that it cannot find options.php.

Am I supposed to create options.php myself? I have used similar code before without creating options.php myself and not had a problem.

Answer 1

Your register_settings function is not being called. Hook it into admin_init.

function register_settings() {  
        register_setting('settings-group','apiemail');
        register_setting('settings-group','apipassword');
    }

add_action( 'admin_init', 'register_settings' );