Added ability to use templates

- Added replace, append and prepend actions for template content into
both the WYSIWYG editor and markdown editor.
- Added further testing to cover.

app/Entities/Repos/PageRepo.php

@@ -9,6 +9,7 @@ use Carbon\Carbon;
 use DOMDocument;
 use DOMElement;
 use DOMXPath;
+use Illuminate\Support\Collection;
 
 class PageRepo extends EntityRepo
 {
@@ -532,4 +533,29 @@ class PageRepo extends EntityRepo
 
         return $this->publishPageDraft($copyPage, $pageData);
     }
+
+    /**
+     * Get pages that have been marked as templates.
+     * @param int $count
+     * @param int $page
+     * @param string $search
+     * @return \Illuminate\Contracts\Pagination\LengthAwarePaginator
+     */
+    public function getPageTemplates(int $count = 10, int $page = 1,  string $search = '')
+    {
+        $query = $this->entityQuery('page')
+            ->where('template', '=', true)
+            ->orderBy('name', 'asc')
+            ->skip( ($page - 1) * $count)
+            ->take($count);
+
+        if ($search) {
+            $query->where('name', 'like', '%' . $search . '%');
+        }
+
+        $paginator = $query->paginate($count, ['*'], 'page', $page);
+        $paginator->withPath('/templates');
+
+        return $paginator;
+    }
 }

app/Http/Controllers/PageController.php

@@ -110,11 +110,14 @@ class PageController extends Controller
         $this->setPageTitle(trans('entities.pages_edit_draft'));
 
         $draftsEnabled = $this->signedIn;
+        $templates = $this->pageRepo->getPageTemplates(10);
+
         return view('pages.edit', [
             'page' => $draft,
             'book' => $draft->book,
             'isDraft' => true,
-            'draftsEnabled' => $draftsEnabled
+            'draftsEnabled' => $draftsEnabled,
+            'templates' => $templates,
         ]);
     }
 
@@ -239,11 +242,14 @@ class PageController extends Controller
         }
 
         $draftsEnabled = $this->signedIn;
+        $templates = $this->pageRepo->getPageTemplates(10);
+
         return view('pages.edit', [
             'page' => $page,
             'book' => $page->book,
             'current' => $page,
-            'draftsEnabled' => $draftsEnabled
+            'draftsEnabled' => $draftsEnabled,
+            'templates' => $templates,
         ]);
     }
 

app/Http/Controllers/PageTemplateController.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace BookStack\Http\Controllers;
+
+use BookStack\Entities\Repos\PageRepo;
+use BookStack\Exceptions\NotFoundException;
+use Illuminate\Http\Request;
+
+class PageTemplateController extends Controller
+{
+    protected $pageRepo;
+
+    /**
+     * PageTemplateController constructor.
+     * @param $pageRepo
+     */
+    public function __construct(PageRepo $pageRepo)
+    {
+        $this->pageRepo = $pageRepo;
+        parent::__construct();
+    }
+
+    /**
+     * Fetch a list of templates from the system.
+     * @param Request $request
+     * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
+     */
+    public function list(Request $request)
+    {
+        $page = $request->get('page', 1);
+        $search = $request->get('search', '');
+        $templates = $this->pageRepo->getPageTemplates(10, $page, $search);
+
+        if ($search) {
+            $templates->appends(['search' => $search]);
+        }
+
+        return view('pages.template-manager-list', [
+            'templates' => $templates
+        ]);
+    }
+
+    /**
+     * Get the content of a template.
+     * @param $templateId
+     * @return \Illuminate\Contracts\Routing\ResponseFactory|\Symfony\Component\HttpFoundation\Response
+     * @throws NotFoundException
+     */
+    public function get($templateId)
+    {
+        $page = $this->pageRepo->getById('page', $templateId);
+
+        if (!$page->template) {
+            throw new NotFoundException();
+        }
+
+        return response()->json([
+            'html' => $page->html,
+            'markdown' => $page->markdown,
+        ]);
+    }
+
+}