Basic support for pagination

[cx.git] / cx / lib / posts.php

diff --git a/cx/lib/posts.php b/cx/lib/posts.php
index 6aca72e54ce59fa30f70836896b74e7719a0193b..7b1316643984a0ad2569831c7e820833df4a9874 100644 (file)
--- a/cx/lib/posts.php
+++ b/cx/lib/posts.php
@@ -2,12 +2,16 @@
 
 cx_require('lib', 'db.php');
 cx_require('lib', 'setup.php');
-cx_require('third_party', 'parsedown', 'Parsedown.php');
+cx_require('lib', 'markdown.php');
 
-function mk_markdown($markdown) {
-       static $Parsedown = new Parsedown();
+class PostMetadata {
+       public $hero_image;
+       public $hero_image_alt;
 
-       return $Parsedown->text($markdown);
+       public function __construct($dict) {
+               $this->hero_image = isset($dict['post_hero_image']) ? $dict['post_hero_image'] : null;
+               $this->hero_image_alt = isset($dict['post_hero_image_alt']) ? $dict['post_hero_image_alt'] : null;
+       }
 }
 
 class Post {
@@ -27,15 +31,31 @@ class Post {
                $this->date = $dict['post_date'];
                $this->is_draft = $dict['post_is_draft'];
                $this->data = $dict['post_data'];
-               $this->html_content = mk_markdown($this->data);
+               $this->html_content = cx_markdown_generate_html($this->data);
                $this->html_excerpt = null;
 
                // Read more...
                $segments = explode('---', $this->data, 2);
                if (count($segments) > 1) {
-                       $this->html_excerpt = mk_markdown($segments[0]);
+                       $this->html_excerpt = cx_markdown_generate_html($segments[0]);
                }
        }
+
+       public function get_metadata() {
+               $data = [];
+
+               $doc = new DOMDocument();
+               $doc->loadHTML($this->html_content);
+
+               $image_tag = $doc->getElementsByTagName('img')[0];
+
+               if ($image_tag != null) {
+                       $data['post_hero_image'] = $image_tag->getAttribute('src');
+                       $data['post_hero_image_alt'] = htmlspecialchars($image_tag->getAttribute('alt'));
+               }
+
+               return new PostMetadata($data);
+       }
 }
 
 function cx_post_make_slug($title) {
@@ -107,7 +127,7 @@ function cx_posts_delete_post($post_id) {
        cx_db_exec($sql, $post_id);
 }
 
-function cx_posts_get(int $limit = 0, bool $include_drafts = false) {
+function cx_posts_get(int $limit = 0, int $offset = 0, bool $include_drafts = false) {
        $sql = 'SELECT
                post_id,
                post_slug,
@@ -127,6 +147,10 @@ function cx_posts_get(int $limit = 0, bool $include_drafts = false) {
        if ($limit > 0) {
                $sql .= ' LIMIT ' . $limit;
        }
+       
+       if ($offset > 0) {
+               $sql .= ' OFFSET ' . $offset;
+       }
 
        $sql .= ';';