Files
godot-website/plugins/rainlab/blog/models/Post.php
2017-09-22 21:46:47 +00:00

539 lines
15 KiB
PHP

<?php namespace RainLab\Blog\Models;
use Db;
use Url;
use App;
use Str;
use Html;
use Lang;
use Model;
use Markdown;
use BackendAuth;
use ValidationException;
use RainLab\Blog\Classes\TagProcessor;
use Backend\Models\User;
use Carbon\Carbon;
use Cms\Classes\Page as CmsPage;
use Cms\Classes\Theme;
class Post extends Model
{
use \October\Rain\Database\Traits\Validation;
public $table = 'rainlab_blog_posts';
public $implement = ['@RainLab.Translate.Behaviors.TranslatableModel'];
/*
* Validation
*/
public $rules = [
'title' => 'required',
'slug' => ['required', 'regex:/^[a-z0-9\/\:_\-\*\[\]\+\?\|]*$/i', 'unique:rainlab_blog_posts'],
'content' => 'required',
'excerpt' => ''
];
/**
* @var array Attributes that support translation, if available.
*/
public $translatable = [
'title',
'content',
'content_html',
'excerpt',
['slug', 'index' => true]
];
/**
* The attributes that should be mutated to dates.
* @var array
*/
protected $dates = ['published_at'];
/**
* The attributes on which the post list can be ordered
* @var array
*/
public static $allowedSortingOptions = [
'title asc' => 'Title (ascending)',
'title desc' => 'Title (descending)',
'created_at asc' => 'Created (ascending)',
'created_at desc' => 'Created (descending)',
'updated_at asc' => 'Updated (ascending)',
'updated_at desc' => 'Updated (descending)',
'published_at asc' => 'Published (ascending)',
'published_at desc' => 'Published (descending)',
'random' => 'Random'
];
/*
* Relations
*/
public $belongsTo = [
'user' => ['Backend\Models\User']
];
public $belongsToMany = [
'categories' => [
'RainLab\Blog\Models\Category',
'table' => 'rainlab_blog_posts_categories',
'order' => 'name'
]
];
public $attachMany = [
'featured_images' => ['System\Models\File', 'order' => 'sort_order'],
'content_images' => ['System\Models\File']
];
/**
* @var array The accessors to append to the model's array form.
*/
protected $appends = ['summary', 'has_summary'];
public $preview = null;
/**
* Limit visibility of the published-button
* @return void
*/
public function filterFields($fields, $context = null)
{
if (!isset($fields->published, $fields->published_at)) {
return;
}
$user = BackendAuth::getUser();
if (!$user->hasAnyAccess(['rainlab.blog.access_publish'])) {
$fields->published->hidden = true;
$fields->published_at->hidden = true;
}
else {
$fields->published->hidden = false;
$fields->published_at->hidden = false;
}
}
public function afterValidate()
{
if ($this->published && !$this->published_at) {
throw new ValidationException([
'published_at' => Lang::get('rainlab.blog::lang.post.published_validation')
]);
}
}
public function beforeSave()
{
$this->content_html = self::formatHtml($this->content);
}
/**
* Sets the "url" attribute with a URL to this object
* @param string $pageName
* @param Cms\Classes\Controller $controller
*/
public function setUrl($pageName, $controller)
{
$params = [
'id' => $this->id,
'slug' => $this->slug,
];
if (array_key_exists('categories', $this->getRelations())) {
$params['category'] = $this->categories->count() ? $this->categories->first()->slug : null;
}
//expose published year, month and day as URL parameters
if ($this->published) {
$params['year'] = $this->published_at->format('Y');
$params['month'] = $this->published_at->format('m');
$params['day'] = $this->published_at->format('d');
}
return $this->url = $controller->pageUrl($pageName, $params);
}
/**
* Used to test if a certain user has permission to edit post,
* returns TRUE if the user is the owner or has other posts access.
* @param User $user
* @return bool
*/
public function canEdit(User $user)
{
return ($this->user_id == $user->id) || $user->hasAnyAccess(['rainlab.blog.access_other_posts']);
}
public static function formatHtml($input, $preview = false)
{
$result = Markdown::parse(trim($input));
if ($preview) {
$result = str_replace('<pre>', '<pre class="prettyprint">', $result);
}
$result = TagProcessor::instance()->processTags($result, $preview);
return $result;
}
//
// Scopes
//
public function scopeIsPublished($query)
{
return $query
->whereNotNull('published')
->where('published', true)
->whereNotNull('published_at')
->where('published_at', '<', Carbon::now())
;
}
/**
* Lists posts for the front end
* @param array $options Display options
* @return self
*/
public function scopeListFrontEnd($query, $options)
{
/*
* Default options
*/
extract(array_merge([
'page' => 1,
'perPage' => 30,
'sort' => 'created_at',
'categories' => null,
'category' => null,
'search' => '',
'published' => true,
'exceptPost' => null,
], $options));
$searchableFields = ['title', 'slug', 'excerpt', 'content'];
if ($published) {
$query->isPublished();
}
/*
* Ignore a post
*/
if ($exceptPost) {
if (is_numeric($exceptPost)) {
$query->where('id', '<>', $exceptPost);
}
else {
$query->where('slug', '<>', $exceptPost);
}
}
/*
* Sorting
*/
if (!is_array($sort)) {
$sort = [$sort];
}
foreach ($sort as $_sort) {
if (in_array($_sort, array_keys(self::$allowedSortingOptions))) {
$parts = explode(' ', $_sort);
if (count($parts) < 2) {
array_push($parts, 'desc');
}
list($sortField, $sortDirection) = $parts;
if ($sortField == 'random') {
$sortField = Db::raw('RAND()');
}
$query->orderBy($sortField, $sortDirection);
}
}
/*
* Search
*/
$search = trim($search);
if (strlen($search)) {
$query->searchWhere($search, $searchableFields);
}
/*
* Categories
*/
if ($categories !== null) {
if (!is_array($categories)) $categories = [$categories];
$query->whereHas('categories', function($q) use ($categories) {
$q->whereIn('id', $categories);
});
}
/*
* Category, including children
*/
if ($category !== null) {
$category = Category::find($category);
$categories = $category->getAllChildrenAndSelf()->lists('id');
$query->whereHas('categories', function($q) use ($categories) {
$q->whereIn('id', $categories);
});
}
return $query->paginate($perPage, $page);
}
/**
* Allows filtering for specifc categories
* @param Illuminate\Query\Builder $query QueryBuilder
* @param array $categories List of category ids
* @return Illuminate\Query\Builder QueryBuilder
*/
public function scopeFilterCategories($query, $categories)
{
return $query->whereHas('categories', function($q) use ($categories) {
$q->whereIn('id', $categories);
});
}
//
// Summary / Excerpt
//
/**
* Used by "has_summary", returns true if this post uses a summary (more tag)
* @return boolean
*/
public function getHasSummaryAttribute()
{
$more = '<!-- more -->';
return (
!!strlen(trim($this->excerpt)) ||
strpos($this->content_html, $more) !== false ||
strlen(Html::strip($this->content_html)) > 600
);
}
/**
* Used by "summary", if no excerpt is provided, generate one from the content.
* Returns the HTML content before the <!-- more --> tag or a limited 600
* character version.
*
* @return string
*/
public function getSummaryAttribute()
{
$excerpt = $this->excerpt;
if (strlen(trim($excerpt))) {
return $excerpt;
}
$more = '<!-- more -->';
if (strpos($this->content_html, $more) !== false) {
$parts = explode($more, $this->content_html);
return array_get($parts, 0);
}
return Html::limit($this->content_html, 600);
}
//
// Next / Previous
//
/**
* Returns the next post, if available.
* @return self
*/
public function nextPost()
{
return self::isPublished()
->where('id', '>' , $this->id)
->orderBy('id', 'asc')
->first()
;
}
/**
* Returns the previous post, if available.
* @return self
*/
public function previousPost()
{
return self::isPublished()
->where('id', '<' , $this->id)
->orderBy('id', 'desc')
->first()
;
}
//
// Menu helpers
//
/**
* Handler for the pages.menuitem.getTypeInfo event.
* Returns a menu item type information. The type information is returned as array
* with the following elements:
* - references - a list of the item type reference options. The options are returned in the
* ["key"] => "title" format for options that don't have sub-options, and in the format
* ["key"] => ["title"=>"Option title", "items"=>[...]] for options that have sub-options. Optional,
* required only if the menu item type requires references.
* - nesting - Boolean value indicating whether the item type supports nested items. Optional,
* false if omitted.
* - dynamicItems - Boolean value indicating whether the item type could generate new menu items.
* Optional, false if omitted.
* - cmsPages - a list of CMS pages (objects of the Cms\Classes\Page class), if the item type requires a CMS page reference to
* resolve the item URL.
* @param string $type Specifies the menu item type
* @return array Returns an array
*/
public static function getMenuTypeInfo($type)
{
$result = [];
if ($type == 'blog-post') {
$references = [];
$posts = self::orderBy('title')->get();
foreach ($posts as $post) {
$references[$post->id] = $post->title;
}
$result = [
'references' => $references,
'nesting' => false,
'dynamicItems' => false
];
}
if ($type == 'all-blog-posts') {
$result = [
'dynamicItems' => true
];
}
if ($result) {
$theme = Theme::getActiveTheme();
$pages = CmsPage::listInTheme($theme, true);
$cmsPages = [];
foreach ($pages as $page) {
if (!$page->hasComponent('blogPost')) {
continue;
}
/*
* Component must use a categoryPage filter with a routing parameter and post slug
* eg: categoryPage = "{{ :somevalue }}", slug = "{{ :somevalue }}"
*/
$properties = $page->getComponentProperties('blogPost');
if (!isset($properties['categoryPage']) || !preg_match('/{{\s*:/', $properties['slug'])) {
continue;
}
$cmsPages[] = $page;
}
$result['cmsPages'] = $cmsPages;
}
return $result;
}
/**
* Handler for the pages.menuitem.resolveItem event.
* Returns information about a menu item. The result is an array
* with the following keys:
* - url - the menu item URL. Not required for menu item types that return all available records.
* The URL should be returned relative to the website root and include the subdirectory, if any.
* Use the Url::to() helper to generate the URLs.
* - isActive - determines whether the menu item is active. Not required for menu item types that
* return all available records.
* - items - an array of arrays with the same keys (url, isActive, items) + the title key.
* The items array should be added only if the $item's $nesting property value is TRUE.
* @param \RainLab\Pages\Classes\MenuItem $item Specifies the menu item.
* @param \Cms\Classes\Theme $theme Specifies the current theme.
* @param string $url Specifies the current page URL, normalized, in lower case
* The URL is specified relative to the website root, it includes the subdirectory name, if any.
* @return mixed Returns an array. Returns null if the item cannot be resolved.
*/
public static function resolveMenuItem($item, $url, $theme)
{
$result = null;
if ($item->type == 'blog-post') {
if (!$item->reference || !$item->cmsPage)
return;
$category = self::find($item->reference);
if (!$category)
return;
$pageUrl = self::getPostPageUrl($item->cmsPage, $category, $theme);
if (!$pageUrl)
return;
$pageUrl = Url::to($pageUrl);
$result = [];
$result['url'] = $pageUrl;
$result['isActive'] = $pageUrl == $url;
$result['mtime'] = $category->updated_at;
}
elseif ($item->type == 'all-blog-posts') {
$result = [
'items' => []
];
$posts = self::orderBy('title')->get();
foreach ($posts as $post) {
$postItem = [
'title' => $post->title,
'url' => self::getPostPageUrl($item->cmsPage, $post, $theme),
'mtime' => $post->updated_at,
];
$postItem['isActive'] = $postItem['url'] == $url;
$result['items'][] = $postItem;
}
}
return $result;
}
/**
* Returns URL of a post page.
*/
protected static function getPostPageUrl($pageCode, $category, $theme)
{
$page = CmsPage::loadCached($theme, $pageCode);
if (!$page) return;
$properties = $page->getComponentProperties('blogPost');
if (!isset($properties['slug'])) {
return;
}
/*
* Extract the routing parameter name from the category filter
* eg: {{ :someRouteParam }}
*/
if (!preg_match('/^\{\{([^\}]+)\}\}$/', $properties['slug'], $matches)) {
return;
}
$paramName = substr(trim($matches[1]), 1);
$url = CmsPage::url($page->getBaseFileName(), [$paramName => $category->slug]);
return $url;
}
}