mirror of
https://github.com/renbaoshuo/S2OJ.git
synced 2024-11-22 12:18:42 +00:00
56 lines
1.4 KiB
PHP
56 lines
1.4 KiB
PHP
<?php
|
|
|
|
trait UOJArticleTrait {
|
|
static string $table_for_content;
|
|
static string $key_for_content;
|
|
static array $fields_for_content;
|
|
static string $table_for_tags;
|
|
static string $key_for_tags;
|
|
|
|
public ?array $tags = null;
|
|
public ?array $content = null;
|
|
|
|
public function queryContent() {
|
|
if ($this->content === null) {
|
|
$this->content = DB::selectFirst([
|
|
"select", DB::fields(static::$fields_for_content), "from", static::$table_for_content,
|
|
"where", [static::$key_for_content => $this->info['id']]
|
|
]);
|
|
}
|
|
return $this->content;
|
|
}
|
|
public function queryTags() {
|
|
if ($this->tags === null) {
|
|
$res = DB::selectAll([
|
|
"select tag from", static::$table_for_tags,
|
|
"where", [static::$key_for_tags => $this->info['id']],
|
|
"order by id"
|
|
]);
|
|
$this->tags = [];
|
|
foreach ($res as $row) {
|
|
$this->tags[] = $row['tag'];
|
|
}
|
|
}
|
|
return $this->tags;
|
|
}
|
|
public function updateTags(array $tags) {
|
|
if ($tags !== $this->queryTags()) {
|
|
DB::delete([
|
|
"delete from", static::$table_for_tags,
|
|
"where", [static::$key_for_tags => $this->info['id']],
|
|
]);
|
|
if ($tags) {
|
|
$tuples = [];
|
|
foreach ($tags as $tag) {
|
|
$tuples[] = [$this->info['id'], $tag];
|
|
}
|
|
DB::insert([
|
|
"insert into", static::$table_for_tags,
|
|
DB::bracketed_fields([static::$key_for_tags, 'tag']),
|
|
"values", DB::tuples($tuples)
|
|
]);
|
|
}
|
|
}
|
|
}
|
|
}
|