initial

1 files changed, 185 insertions, 0 deletions

diff --git a/model/Post.php b/model/Post.php
new file mode 100644
index 0000000..10a396b
--- /dev/null
+++ b/model/Post.php
@@ -0,0 +1,185 @@
+<?php
+
+class Post extends Model {
+
+    const DB_TABLE = 'posts';
+
+    public int $id;
+    public string $title;
+    public string $md;
+    public string $html;
+    public string $text;
+    public int $ts;
+    public int $updateTs;
+    public bool $visible;
+    public string $shortName;
+
+    public function edit(array $data) {
+        $cur_ts = time();
+        if (!$this->visible && $data['visible'])
+            $data['ts'] = $cur_ts;
+
+        $data['update_ts'] = $cur_ts;
+
+        if ($data['md'] != $this->md) {
+            $data['html'] = \markup::markdownToHtml($data['md']);
+            $data['text'] = \markup::htmlToText($data['html']);
+        }
+
+        parent::edit($data);
+        $this->updateImagePreviews();
+    }
+
+    public function updateHtml() {
+        $html = \markup::markdownToHtml($this->md);
+        $this->html = $html;
+
+        getDb()->query("UPDATE posts SET html=? WHERE id=?", $html, $this->id);
+    }
+
+    public function updateText() {
+        $html = \markup::markdownToHtml($this->md);
+        $text = \markup::htmlToText($html);
+        $this->text = $text;
+
+        getDb()->query("UPDATE posts SET text=? WHERE id=?", $text, $this->id);
+    }
+
+    public function getDescriptionPreview(int $len): string {
+        if (mb_strlen($this->text) >= $len)
+            return mb_substr($this->text, 0, $len-3).'...';
+        return $this->text;
+    }
+
+    public function getFirstImage(): ?Upload {
+        if (!preg_match('/\{image:([\w]{8})/', $this->md, $match))
+            return null;
+        return uploads::getByRandomId($match[1]);
+    }
+
+    public function getUrl(): string {
+        return $this->shortName != '' ? "/{$this->shortName}/" : "/{$this->id}/";
+    }
+
+    public function getDate(): string {
+        return date('j M', $this->ts);
+    }
+
+    public function getYear(): int {
+        return (int)date('Y', $this->ts);
+    }
+
+    public function getFullDate(): string {
+        return date('j F Y', $this->ts);
+    }
+
+    public function getUpdateDate(): string {
+        return date('j M', $this->updateTs);
+    }
+
+    public function getFullUpdateDate(): string {
+        return date('j F Y', $this->updateTs);
+    }
+
+    public function getHtml(bool $retina): string {
+        $html = $this->html;
+        if ($retina)
+            $html = markup::htmlRetinaFix($html);
+        return $html;
+    }
+
+    public function isUpdated(): bool {
+        return $this->updateTs && $this->updateTs != $this->ts;
+    }
+
+    /**
+     * @return Tag[]
+     */
+    public function getTags(): array {
+        $db = getDb();
+        $q = $db->query("SELECT tags.* FROM posts_tags
+            LEFT JOIN tags ON tags.id=posts_tags.tag_id
+            WHERE posts_tags.post_id=?
+            ORDER BY posts_tags.tag_id", $this->id);
+        return array_map('Tag::create_instance', $db->fetchAll($q));
+    }
+
+    /**
+     * @return int[]
+     */
+    public function getTagIds(): array {
+        $ids = [];
+        $db = getDb();
+        $q = $db->query("SELECT tag_id FROM posts_tags WHERE post_id=? ORDER BY tag_id", $this->id);
+        while ($row = $db->fetch($q)) {
+            $ids[] = (int)$row['tag_id'];
+        }
+        return $ids;
+    }
+
+    public function setTagIds(array $new_tag_ids) {
+        $cur_tag_ids = $this->getTagIds();
+        $add_tag_ids = array_diff($new_tag_ids, $cur_tag_ids);
+        $rm_tag_ids = array_diff($cur_tag_ids, $new_tag_ids);
+
+        $db = getDb();
+        if (!empty($add_tag_ids)) {
+            $rows = [];
+            foreach ($add_tag_ids as $id)
+                $rows[] = ['post_id' => $this->id, 'tag_id' => $id];
+            $db->multipleInsert('posts_tags', $rows);
+        }
+
+        if (!empty($rm_tag_ids))
+            $db->query("DELETE FROM posts_tags WHERE post_id=? AND tag_id IN(".implode(',', $rm_tag_ids).")", $this->id);
+
+        $upd_tag_ids = array_merge($new_tag_ids, $rm_tag_ids);
+        $upd_tag_ids = array_unique($upd_tag_ids);
+        foreach ($upd_tag_ids as $id)
+            posts::recountPostsWithTag($id);
+    }
+
+    /**
+     * @param bool $update Whether to overwrite preview if already exists
+     * @return int
+     */
+    public function updateImagePreviews(bool $update = false): int {
+        $images = [];
+        if (!preg_match_all('/\{image:([\w]{8}),(.*?)}/', $this->md, $matches))
+            return 0;
+
+        for ($i = 0; $i < count($matches[0]); $i++) {
+            $id = $matches[1][$i];
+            $w = $h = null;
+            $opts = explode(',', $matches[2][$i]);
+            foreach ($opts as $opt) {
+                if (strpos($opt, '=') !== false) {
+                    list($k, $v) = explode('=', $opt);
+                    if ($k == 'w')
+                        $w = (int)$v;
+                    else if ($k == 'h')
+                        $h = (int)$v;
+                }
+            }
+            $images[$id][] = [$w, $h];
+        }
+
+        if (empty($images))
+            return 0;
+
+        $images_affected = 0;
+        $uploads = uploads::getUploadsByRandomId(array_keys($images), true);
+        foreach ($uploads as $u) {
+            foreach ($images[$u->randomId] as $s) {
+                list($w, $h) = $s;
+                list($w, $h) = $u->getImagePreviewSize($w, $h);
+                if ($u->createImagePreview($w, $h, $update)) {
+                    $images_affected++;
+                }
+            }
+        }
+
+        return $images_affected;
+    }
+
+}