WordPress Plugin 入門 #wpshinshu / 2019-06-22 Shinshu WordPress Meetup

Transcript

1. WordPress Plugin ೖ໳
   Toro_Unit @Shinshu WP Meetup
   vol.13
   1
   

   View Slide

2. $ whoami
   2
   

   View Slide

3. Toro_Unit
   ઎෦ ߛ (͏Β΂ ͻΖ͠)
   • Frontend Engineer
   • WordPress Plugin and Theme
   Developer
   Github: @torounit
   Twitter: @Toro_Unit
   3
   

   View Slide

4. Contribution
   • WordPress 4.3 / 4.4 / 4.7 / 5.0 / 5.1 /
   5.2
   • WordCamp Osaka 2019
   • WordCamp Osaka 2018 Speaker.
   • etc...
   4
   

   View Slide

5. Plugins and Themes
   • Custom Post Type Permalinks
   • Advanced Posts Blocks
   • Simple Post Type Permalinks
   • Powerful Posts Per Page (PPPP)
   • Vanilla
   • and more...
   5
   

   View Slide

6. Question.
   6
   

   View Slide

7. Theme ࡞ͬͨ͜ͱ͋Δਓ
   7
   

   View Slide

8. Plugin ࡞ͬͨ͜ͱ͋Δਓ
   8
   

   View Slide

9. ͦ΋ͦ΋ ϓϥάΠϯͱ͸Կͳͷ͔ɻ
   9
   

   View Slide

10. • WordPress Λ֦ு͢ΔػೳɻσϑΥϧτʹແ͍ػೳΛ௥Ճ͠
    ͨΓɺಈ࡞Λվมͨ͠Γ͢Δɻ
    • wp-settings.php ͰಡΈࠐ·ΕΔɻ
    • PHPͷεΫϦϓτɻ͔ͦ͜ΒCSSͱ͔JSͱ͔ΛಡΈࠐΜͩΓ
    ͢Δ͜ͱ΋ɻ
    10
    

    View Slide

11. foreach ( wp_get_active_and_valid_plugins() as $plugin ) {
    wp_register_plugin_realpath( $plugin );
    include_once( $plugin );
    /**
    * Fires once a single activated plugin has loaded.
    *
    * @since 5.1.0
    *
    * @param string $plugin Full path to the plugin's main file.
    */
    do_action( 'plugin_loaded', $plugin );
    }
    11
    

    View Slide

12. wp-content/plugins ͷதʹɺ
    • hogehoge.php
    • hogehoge/hugahuga.php
    ͳͲͷϑΝΠϧΛ࡞੒͠ɺઌ಄ʹίϝϯτΛॻ͚͹ϓϥάΠ
    ϯɻ
    /**
    * Plugin Name: Your Plugin
    */
    12
    

    View Slide

13. ΞΫγϣϯϑοΫɺϑΟϧλʔϑοΫ
    • WordPress ͷಛఆͷಈ࡞Λվม͢ΔͨΊͷػೳɻ
    13
    

    View Slide

14. add_action
    ಛఆͷՕॴʹಈ࡞Λ௥Ճ͢Δɻ
    // ϓϥάΠϯͷελΠϧγʔτΛొ࿥
    function add_reading_minutes_styles() {
    wp_enqueue_style( 'plugin-hans-on-sample',
    plugin_dir_url( __FILE__ ) . 'style.css' );
    }
    // ΞΫγϣϯϑοΫΛొ࿥
    add_action( 'wp_enqueue_scripts', 'add_reading_minutes_styles' );
    14
    

    View Slide

15. add_filter
    ಛఆͷՕॴʹಈ࡞Λվม͢Δɻ
    //ຊจͷલʹ͜ͷهࣄ͸n෼ͰಡΊ·͢Λදࣔɻ
    function add_reading_minutes_to_the_content( $content ) {
    $minutes = count_reading_minutes( $content );
    $text = sprintf( '͜ͷهࣄ͸໿%d෼ͰಡΊ·͢ɻ', $minutes );
    $before = '' . esc_html( $text ) . '';
    return $before . $content;
    }
    //ϑΟϧλʔϑοΫΛొ࿥
    add_filter( 'the_content', 'add_reading_minutes_to_the_content' );
    15
    

    View Slide

16. ࡶͳͨͱ͑
    ࡶͳΧϨʔͷ࡞Γํ
    1. ࡐྉΛ༻ҙ͢Δ: [ܲ೑ɺδϟΨΠϞɺʹΜ͡ΜɺλϚωΪ]
    2. ࡐྉΛ੾Δ
    3. ᖱΊΔ
    4. ࣽΔ
    5. ௐຯྉ(ϧ΢)ΛೖΕΔ
    16
    

    View Slide

17. ΧϨʔ΋ͪΌΜͱΞΫΛऔͬͨํ͕ඒຯ͍ɻ
    ΞΫΛऔΓ·͘ΔΧϨʔVSҰ੾औΒͳ͍ΧϨʔ :: σΠϦʔϙʔ
    λϧZ
    17
    

    View Slide

18. 1. ࡐྉΛ༻ҙ͢Δ: [ܲ೑ɺδϟΨΠϞɺʹΜ͡ΜɺλϚωΪ]
    2. ࡐྉΛ੾Δ
    3. ᖱΊΔ
    4. ࣽΔ
    5. ΞΫΛऔΔ!!!
    6. ௐຯྉ(ϧ΢)ΛೖΕΔ
    18
    

    View Slide

19. ࡶͳϨγϐΛ PHP Ͱॻ͍ͯΈΔɻ
    $zairyo = [ 'ܲ೑', 'δϟΨΠϞ', 'ʹΜ͡Μ', 'λϚωΪ' ];
    $zairyo = apply_filters( 'zairyo', $zairyo );
    $cook->cut( $zairyo );
    do_action( 'before_boil', $cook );
    $cook->boil();
    do_action( 'after_boiled', $cook );
    $seasoning = apply_filters( 'seasoning', [ 'ΧϨʔϧ΢' ] );
    $cook->add_seasoning( $seasoning );
    19
    

    View Slide

20. ΞΫΛऔΔ
    add_action( 'after_boiled', 'remove_aku' );
    function remove_aku( $cook ) {
    $cook->remove_aku();
    }
    20
    

    View Slide

21. 1. ࡐྉΛ༻ҙ͢Δ: [ܲ೑ɺδϟΨΠϞɺʹΜ͡ΜɺλϚωΪ]
    2. ࡐྉΛ੾Δ
    3. ᖱΊΔ
    4. ࣽΔ
    5. ΞΫΛऔΔ!!!
    6. ௐຯྉ(ϧ΢)ΛೖΕΔ
    21
    

    View Slide

22. ϏʔϑΧϨʔʹม͑Δ
    add_filter( 'zairyo', 'beef_curry_zairyo' );
    function beef_curry_zairyo( $zairyo ) {
    return array_replace( $zairyo, [ 0 => 'ڇ೑'] );
    }
    22
    

    View Slide

23. 1. ࡐྉΛ༻ҙ͢Δ: [ ڇ೑!! ɺδϟΨΠϞɺʹΜ͡ΜɺλϚωΪ]
    2. ࡐྉΛ੾Δ
    3. ᖱΊΔ
    4. ࣽΔ
    5. ௐຯྉ(ϧ΢)ΛೖΕΔ
    23
    

    View Slide

24. ೑͡Ό͕ʹม͑Δ
    add_filter( 'zairyo', function() {
    return ['ಲ೑', 'δϟΨΠϞ', 'ʹΜ͡Μ', '͠Β͖ͨ', 'λϚωΪ' ];
    });
    add_filter( 'seasoning', function() {
    return [ '͠ΐ͏Ώ', 'ΈΓΜ', '࠭౶' ];
    });
    add_action( 'before_boil', function( $cook ) {
    $cook->make_dashi('׍અ');
    });
    add_action( 'after_boiled', function( $cook ) {
    $cook->remove_aku();
    $cook->set_otoshibuta();
    });
    24
    

    View Slide

25. 1. ࡐྉΛ༻ҙ͢Δ: [ಲ೑ɺδϟΨΠϞɺʹΜ͡Μɺ͠Β͖ͨɺλϚωΪ]
    2. ࡐྉΛ੾Δ
    3. ᖱΊΔ
    4. μγΛऔΔ
    5. ࣽΔ
    6. փोΛऔΔ
    7. མͱ֖͠
    8. ௐຯྉ(ে༉ɺΈΓΜɺ࠭౶)ΛೖΕΔ
    25
    

    View Slide

26. ϑοΫͷ୳͠ํ
    Codex ΛݟΔ
    • ϓϥάΠϯ API/ΞΫγϣϯϑοΫҰཡ - WordPress Codex ೔
    ຊޠ൛
    26
    

    View Slide

27. View Slide

28. • Code reference https://developer.wordpress.org/reference/ɹ
    Ͱ͕͢͞ɻ
    • ιʔεΛಡΉɻ
    • ϑΟϧλʔϑοΫ͸ϚδͰଟ͗͢ΔͷͰɺͦͷ౎౓୳ͯ͠
    Δɻ͜ͷؔ਺ͱ͔ςϯϓϨʔτλάͲ͏ʹ͔ͳΒͳ͍͔
    ͳʔͬͯײ͡ͰιʔεΛͦͷՕॴ͚ͩಡΉͱɺେ఍ɺ
    do_action, apply_filter ͕ݟ͔ͭΔɻ
    28
    

    View Slide

29. Α͘࢖͏ action
    • after_setup_theme: ςʔϚͷઃఆ͕ऴΘͬͨޙ
    • init : WordPress ͷॳظઃఆͳͲ͕ऴΘͬͨޙ
    • admin_init : ؅ཧը໘ͰͷॳظઃఆͳͲ͕ऴΘͬͨޙ
    • wp_enqueue_scripts : CSS ͱ͔ JS Λొ࿥͢Δͱ͖
    • pre_get_posts: ౤ߘͷσʔλΛऔಘ͢Δલ
    29
    

    View Slide

30. Α͘࢖͏ filter
    • body_class: body_class() Ͱग़ྗ͞ΕΔ class Λվมɻ
    • get_the_archive_title: ҰཡϖʔδͰͷλΠτϧɺ
    the_archive_title() ͷςΩετΛมߋɻ
    ͋Μ·Γͳ͍ɻͦͷ౎౓ඞཁʹԠͯ͡ɻɻɻ
    30
    

    View Slide

31. functions.php ͱͳʹ͕͕ͪ͏ͷ͔
    • ಡΈࠐ·ΕΔλΠϛϯά͕ҧ͏ɻϓϥάΠϯͷ100ߦԼ͘Β͍Ͱಡ
    Έࠐ·ΕΔɻ
    • ͦΕҎ֎ʹҧ͍͸ಛʹͳ͍ɻfunctions.php ͰՄೳͳ͜ͱ͸શͯϓϥ
    άΠϯͰ࣮ݱͰ͖Δɻ
    foreach ( wp_get_active_and_valid_themes() as $theme ) {
    if ( file_exists( $theme . '/functions.php' ) ) {
    include $theme . '/functions.php';
    }
    }
    31
    

    View Slide

32. • άάΔͱ functions.php ʹɾɾɾΈ͍ͨͳهࣄ͕ࢁ΄Ͳग़ͯ
    ͘Δ͕ɺ΄΅શͯϓϥάΠϯͰ΋ಈ͘ɻ
    32
    

    View Slide

33. ԿނϓϥάΠϯʁςʔϚͰ΋ಉ͜͡ͱ͕Ͱ͖Δͳ
    Βผʹྑ͘ͳ͍ʁ
    • ͪ·ͨͰ͸ଟػೳΛചΓʹͯ͠ΔςʔϚ΋ଟ͍Ͱ͕͢ɻɻɻ
    33
    

    View Slide

34. ςʔϚʹػೳΛؚΊΔ͜ͱͷ໰୊఺
    • ςʔϚ͸αΠτͷݟͨ໨Λఆٛ͢ΔϞϊɻػೳΛؚΊΔ΋ͷ
    Ͱ͸ແ͍ɻ
    • ݟͨ໨Λม͍͑ͨʂͱ͍͏ͱ͖ʹɺػೳ͕ࢮ͵ͷͰม͑ΒΕ
    ͳ͍ͳͲͷ໰୊ɻ
    • ଞͷϞϊͰରԠ͍ͨ͠ػೳΛOFFʹͰ͖ͳ͍ɻ
    34
    

    View Slide

35. ϓϥάΠϯςϦτϦʔ
    Plugin Territory
    • ΞΫηεղੳ
    • SEO ͷͨΊͷػೳ
    • ͓໰͍߹ΘͤϑΥʔϜ
    • ΧελϜ౤ߘλΠϓ
    • ΧελϜϒϩοΫɾγϣʔτίʔυ
    • etc....
    35
    

    View Slide

36. ʮϦχϡʔΞϧ΍ςʔϚͷมߋͰͿͬ
    ͱΜͩΒࠔΔ΋ͷ͸ϓϥάΠϯʯ
    Plugin Territory – WordPressͷͦͷॲཧ͸ςʔϚͰ΍Δ΂͖͔ϓϥάΠϯͰ΍Δ΂͖͔ʁ | Firegoby
    36
    

    View Slide

37. ͲΜͳ;͏ʹ࢓ࣄͰ࢖ͬͯΔ͔
    • Ҋ݅Ͱ࡞Δͱ͖͸ɺػೳ͝ͱʹผͷϓϥάΠϯʹ෼ׂ͍ͯ͠
    Δɻ
    • 5ߦͷίʔυͱ͔Ͱ΋ɻ
    • γϯϓϧͳػೳ͸࢖͍ճ͕͠ޮ͖΍͍͢͠ཧղ͠΍͍͢ɻ
    • functions.php ͕ _sʢελʔλʔςʔϚʣ ͦͷ··ͱ͍͏৔
    ߹΋ଟ͍ɻ
    37
    

    View Slide

38. Thanks!
    Github: @torounit
    Twitter: @Toro_Unit
    Facebook: fb.me/torounit
    Blog: https://torounit.com
    38
    

    View Slide