Introduction To WordPress Plugin Development

WordPress Mumbai Meetup

Transcript

1. WordPress Mumbai
2. Introduction To Plugin Development
3. EXPECTATIONS & TAKEAWAYS
4. PLUGINS
5. Why Plugins ?
6. Types Of Plugins ?
7. Types Of Plugins ? Functionality Enhancement Site Specific Plugin
8. Plugin vs Theme Territory !
9. LICENSING
10. Why its important?
11. Why its important ? Permissions Conditions Limitations
12. Resources
13. Resources https://choosealicense.com/licenses/
14. Resources https://opensource.org/licenses
15. Resources https://en.wikipedia.org/wiki/Comparison_of_free_and_open-source_software_licenses
16. DEVELOPMENT ENVIRONMENT
17. Development Stack
18. WAMP XAMPP MAMP Varying Vagrant Vagrants
19. Code Editor
20. SublimeText Atom Brackets NotePad++ TextWrangler
21. Source Control
22. Local Git GitHub GitLab
23. RESOURCES
24. Developer Handbook https://developer.wordpress.org/plugins/
25. WordPress TV http://wordpress.tv/?s=plugin
26. Developer Reference https://developer.wordpress.org/reference/
27. Generate WP http://generatewp.com
28. Patterns https://github.com/0aveRyan/patterns
29. Custom Meta Boxes https://github.com/humanmade/Custom-Meta-Boxes
30. GETTING STARTED
31. Procedural? Oops? Boilerplate?
32. Plan & Move Accordingly
33. BASIC PLUGIN
34. Basic Structure my-plugin my-plugin.php readme.txt license.txt
35. Plugin Header
36. Plugin Header my-plugin.php
37. Hooks Activation Deactivation Uninstall
38. Hooks Activation/Deactivation/Uninstall
39. BEST PRACTICES
40. File Organization
41. Follow WordPress Design
42. Coding Standards
43. Avoid Naming Collisions
44. o Prefix everything o Check for Existing Implementations o Variables: isset() (includes arrays, objects, etc.) o Functions: function_exists() o Classes: class_exists() o Constants: defined()
45. Conditional Loading
46. Plugin Architecture
47. Boilerplate Starting Points
48. Components Of Plugin Development
49. SECURITY
50. Checking User Capabilities
51. Data Validation
52. Securing Input & Output
53. Nonces
54. HOOKS
55. What are hooks ?
56. Types Of Hooks
57. Action Filter
58. Custom Hooks
59. Why Custom Hooks?
60. ADMIN MENU
61. Top Level Menu
62. Sub Menu
63. SHORTCODES
64. Why Shortcodes?
65. Default Shortcodes
66. [caption] – shortcode that allows you to wrap captions around content [gallery] – shortcode that allows you to show image galleries [audio] – shortcode that allows you to embed and play audio files [video] – shortcode that allows you to embed and play video files [playlist] – shortcode that allows you to display collection of audio or video files [embed] – shortcode that allows you to wrap embedded items
67. Basic Shortcodes [wporg] is your new shortcode. The use of the shortcode will trigger the wporg_shortcode callback function.
68. Enclosing Shortcodes [wporg]content to manipulate[/wporg]
69. Shortcodes With Parameters [wporg title="WordPress.org"]content to manipulate[/wporg]
70. SETTINGS
71. Settings
72. Settings API
73. Options API
74. Why we need settings API?
75. METADATA
76. What is Metadata?
77. Managing MetaData add_post_meta() update_post_meta() delete_post_meta() get_post_meta()
78. Meta Boxes
79. Custom Meta Boxes
80. CUSTOM POSTTYPES
81. What is posttype?
82. Default PostTypes Post Page Attachment Revision Menu
83. What is custom posttypes?
84. Custom PostType
85. TAXANOMIES
86. What is Taxonomy?
87. Default Taxonomies
88. Custom Taxonomies
89. WORDPRESS.ORG
90. Hosting not source control
91. Important things to consider
92. readme.txt
93. Readme.txt > WordPress.org
94. Plugin Submission https://wordpress.org/plugins/developers/add/
95. What next ?
96. Advanced Topics ACL (Access Control List) HTTP API WP Cron Internationalisation & Localisation
97. Thank You