WordPress - Themes

Grundgerüst

style.css:

<?php
 /*
Theme Name: Twenty Fifteen
Theme URI: https://wordpress.org/themes/twentyfifteen/
Author: the WordPress team
Author URI: https://wordpress.org/
Description: Our 2015 default theme is clean, blog-focused, and designed for clarity. Twenty Fifteen's simple, straightforward typography is readable on a wide variety of screen sizes, and suitable for multiple languages. We designed it using a mobile-first approach, meaning your content takes center-stage, regardless of whether your visitors arrive by smartphone, tablet, laptop, or desktop computer.
Version: 1.9
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Tags: blog, two-columns, left-sidebar, accessibility-ready, custom-background, custom-colors, custom-header, custom-logo, custom-menu, editor-style, featured-images, microformats, post-formats, rtl-language-support, sticky-post, threaded-comments, translation-ready
Text Domain: twentyfifteen

This theme, like WordPress, is licensed under the GPL.
Use it to make something cool, have fun, and share what you've learned with others.
*/


 ?>

---

index.php:

<?php

the_post();
the_title();

---

Template Tags

• https://codex.wordpress.org/Template_Tags

---

Conditional Tags

• https://codex.wordpress.org/conditional_Tags

---

Schlagwörter

Schlagwörter aktivieren

Dieser Code wird in die functions.php des Themes eingefügt (wp-content/themes/<themename>/functions.php).[1]

// add tag support to pages
function tags_support_all() {
	register_taxonomy_for_object_type('post_tag', 'page');
}

// ensure all tags are included in queries
function tags_support_query($wp_query) {
	if ($wp_query->get('tag')) $wp_query->set('post_type', 'any');
}

// tag hooks
add_action('init', 'tags_support_all');
add_action('pre_get_posts', 'tags_support_query');

---

Kommentare

• https://codex.wordpress.org/Function_Reference/comment_form

• https://codex.wordpress.org/Function_Reference/wp_list_comments

-> You will need to define your custom callback function in your theme's functions.php file.

Hier kann man folgende Vorlage entnehmen:

function mytheme_comment($comment, $args, $depth) {
    if ( 'div' === $args['style'] ) {
        $tag       = 'div';
        $add_below = 'comment';
    } else {
        $tag       = 'li';
        $add_below = 'div-comment';
    }?>
    <<?php echo $tag; comment_class( empty( $args['has_children'] ) ? '' : 'parent' ); ?> id="comment-<?php comment_ID() ?>"><?php 
    if ( 'div' != $args['style'] ) { ?>
        <div id="div-comment-<?php comment_ID() ?>" class="comment-body"><?php
    } ?>
        <div class="comment-author vcard"><?php 
            if ( $args['avatar_size'] != 0 ) {
                echo get_avatar( $comment, $args['avatar_size'] ); 
            } 
            printf( __( '<cite class="fn">%s</cite> <span class="says">says:</span>' ), get_comment_author_link() ); ?>
        </div><?php 
        if ( $comment->comment_approved == '0' ) { ?>
            <em class="comment-awaiting-moderation"><?php _e( 'Your comment is awaiting moderation.' ); ?></em><br/><?php 
        } ?>
        <div class="comment-meta commentmetadata">
            <a href="<?php echo htmlspecialchars( get_comment_link( $comment->comment_ID ) ); ?>"><?php
                /* translators: 1: date, 2: time */
                printf( 
                    __('%1$s at %2$s'), 
                    get_comment_date(),  
                    get_comment_time() 
                ); ?>
            </a><?php 
            edit_comment_link( __( '(Edit)' ), '  ', '' ); ?>
        </div>

        <?php comment_text(); ?>

        <div class="reply"><?php 
                comment_reply_link( 
                    array_merge( 
                        $args, 
                        array( 
                            'add_below' => $add_below, 
                            'depth'     => $depth, 
                            'max_depth' => $args['max_depth'] 
                        ) 
                    ) 
                ); ?>
        </div><?php 
    if ( 'div' != $args['style'] ) : ?>
        </div><?php 
    endif;
}

---

Child Themes

• https://codex.wordpress.org/Child_Themes

Es muss im folgende Verzeichnisse angelegt werden:

1. Im Ordner themesas Child-Theme-Verzeichnis (meintheme-child), darin die Dateien
2. style.css und
3. functions.php

Hier der Dateikopf für style.css: Wichtig ist der Eintrag Template. Beispiel: twentyfifteen-child:

/*
 Theme Name:   Twenty Fifteen Child
 Description:  Twenty Fifteen Child Theme
 Author:       Heinrich Flink
 Template:     twentyfifteen
 Version:      1.0.0
*/

@import url("../twentyfifteen/style.css");

---

Hier das Grundgerüst für functions.php: Wichtig ist der Eintrag $parent_style = 'twentyfifteen-style';. Beispiel für twentyfifteen-child:

<?php
function my_theme_enqueue_styles() {

    $parent_style = 'parent-style'; // This is 'twentyfifteen-style' for the Twenty Fifteen theme.

    wp_enqueue_style( $parent_style, get_template_directory_uri() . '/style.css' );
    wp_enqueue_style( 'child-style',
        get_stylesheet_directory_uri() . '/style.css',
        array( $parent_style ),
        wp_get_theme()->get('Version')
    );
}
add_action( 'wp_enqueue_scripts', 'my_theme_enqueue_styles' );
?>

---

Footer-Menü

Dies ist ein Beispiel für ein manuell erstelltes Fußzeilen-Menü. Idealerweise wird es in einem Child-Theme realisiert. Wenn man kein Child anlegen kann (weil das zugrunde liegende Theme schon ein Child ist), muss man die Eintragungen in die Dateien des "Basis"-Themes vornehmen. Nach einem Update des Themes müssen diese dann von Neuem manuell vorgenommen werden.

• style.css

.myfooter{
text-align: center;
margin-left: 40px;
padding:20px 0
}

.myfooter a{
color: #5858FA;
}

• footer.php

<footer><div  class="myfooter"><a href="https://example.com/ueber-diese-website/">Über diese Website</a>        <a href="https://example.com/impressum-datenschutz/">Impressum & Datenschutz</a>        <a href="https://example.com/kontakt/">Kontakt</a></div></footer>

---

Bilder

Thumbnail: 880x660 Pixel

---

Troubleshooting

System Status

• PHP Time Limit

zu niedrig eingestellt.

>> In wp-config.php über der Zeile mit "Happy blogging" z. B. folgende Zeile einfügen:

set_time_limit(180);

[2]

---

• PHP Max Input Vars

zu niedrig.

>> Im Document root eine Datei .user.ini anlegen. Hier z. B. folgenden Eintrag hinterlegen:

max_input_vars = 5000;
[3]

---

Notizen

Mindestens notwendig:

index.php

style.css: wichtig Theme Name:

---

single.php: > einzelne Beiträge

---

Links und Quellen

• https://codex.wordpress.org/Theme_Development

• https://t3n.de/news/grosse-guide-wordpress-theme-555618/

• http://wptest.io/

---

---

|