Merge pull request #24 from kdambekalns/feature/category-page

FEATURE: List posts by category
robertlemke · Feb 21, 2019 · f78d181 · f78d181
2 parents 39a6614 + 65ae72b
commit f78d181
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Showing 3 changed files with 123 additions and 19 deletions.
diff --git a/Classes/Eel/FilterByReferenceOperation.php b/Classes/Eel/FilterByReferenceOperation.php
@@ -0,0 +1,69 @@
+<?php
+
+declare(strict_types=1);
+
+namespace RobertLemke\Plugin\Blog\Eel;
+
+use Neos\ContentRepository\Domain\Model\NodeInterface;
+use Neos\Eel\FlowQuery\FlowQuery;
+use Neos\Eel\FlowQuery\FlowQueryException;
+use Neos\Eel\FlowQuery\Operations\AbstractOperation;
+
+/**
+ * FlowQuery operation to filter by properties of type reference or references
+ */
+class FilterByReferenceOperation extends AbstractOperation {
+
+    /**
+     * {@inheritdoc}
+     */
+    protected static $shortName = 'filterByReference';
+
+    /**
+     * {@inheritdoc}
+     */
+    protected static $priority = 100;
+
+    /**
+     * We can only handle CR Nodes.
+     *
+     * @param $context
+     * @return bool
+     */
+    public function canEvaluate($context) {
+        return (!isset($context[0]) || ($context[0] instanceof NodeInterface));
+    }
+
+    /**
+     * First argument is property to filter by, must be of reference of references type.
+     * Second is object to filter by, must be Node.
+     *
+     * @param FlowQuery $flowQuery
+     * @param array $arguments The arguments for this operation.
+     * @return void
+     * @throws FlowQueryException
+     * @throws \Neos\ContentRepository\Exception\NodeException
+     */
+    public function evaluate(FlowQuery $flowQuery, array $arguments) {
+        if (empty($arguments[0])) {
+            throw new FlowQueryException('filterByReference() needs reference property name by which nodes should be filtered', 1545778273);
+        }
+        if (empty($arguments[1])) {
+            throw new FlowQueryException('filterByReference() needs node reference by which nodes should be filtered', 1545778276);
+        }
+
+        /** @var NodeInterface $nodeReference */
+        list($filterByPropertyPath, $nodeReference) = $arguments;
+
+        $filteredNodes = [];
+        foreach ($flowQuery->getContext() as $node) {
+            /** @var NodeInterface $node */
+            $propertyValue = $node->getProperty($filterByPropertyPath);
+            if ($nodeReference === $propertyValue || (is_array($propertyValue) && in_array($nodeReference, $propertyValue, TRUE))) {
+                $filteredNodes[] = $node;
+            }
+        }
+
+        $flowQuery->setContext($filteredNodes);
+    }
+}
diff --git a/Resources/Private/Fusion/Root.fusion b/Resources/Private/Fusion/Root.fusion
@@ -73,6 +73,26 @@ prototype(RobertLemke.Plugin.Blog:PostsOverview) < prototype(Neos.Neos:Content)
     }
 }
 
+#
+# List posts in category, including pagination
+#
+prototype(RobertLemke.Plugin.Blog:Category) < prototype(Neos.NodeTypes:Page) {
+    body.content.main = RobertLemke.Plugin.Blog:PostsOverview {
+        postsNode >
+        postNodes = ${q(site).find('[instanceof RobertLemke.Plugin.Blog:Post]').filterByReference('categories', documentNode).get()}
+    }
+}
+
+#
+# List posts in tag, including pagination
+#
+prototype(RobertLemke.Plugin.Blog:Tag) < prototype(Neos.NodeTypes:Page) {
+    body.content.main = RobertLemke.Plugin.Blog:PostsOverview {
+        postsNode >
+        postNodes = ${q(site).find('[instanceof RobertLemke.Plugin.Blog:Post]').filterByReference('tags', documentNode).get()}
+    }
+}
+
 #
 # RSS feed
 #

diff --git a/Resources/Private/Templates/NodeTypes/PostsOverview.html b/Resources/Private/Templates/NodeTypes/PostsOverview.html
@@ -23,23 +23,38 @@
 	});
 </script>
 <div class="robertlemke-plugin-blog" id="scrolling-container">
-	<cr:widget.paginate widgetId="posts-paginator" parentNode="{postsNode}" nodeTypeFilter="RobertLemke.Plugin.Blog:Post" as="paginatedPosts" configuration="{itemsPerPage: 5, insertBelow: 1, maximumNumberOfLinks: 15}">
-		<ol class="posts">
-			<f:for each="{paginatedPosts}" as="post">
-				<li class="post">
-					<h2>
-						<neos:link.node node="{post}">{post.properties.title}</neos:link.node>
-						<f:if condition="{post.removed}"> (removed)</f:if>
-					</h2>
-					<p class="content">
-						<neos:link.node node="{post}" class="invisible-link">
-							<blog:teaser node="{post}"/>
-						</neos:link.node> <neos:link.node node="{post}" class="read-more"><f:translate package="RobertLemke.Plugin.Blog">Read more</f:translate></neos:link.node>
-					</p>
-				</li>
-				<hr/>
-			</f:for>
-		</ol>
-		{pagination.numberOfPages}
-	</cr:widget.paginate>
+    <f:if condition="{postsNode}"><f:render section="fromParentNode" arguments="{parentNode: postsNode}"/></f:if>
+    <f:if condition="{postNodes}"><f:render section="fromNodes" arguments="{nodes: postNodes}"/></f:if>
 </div>
+
+<f:section name="fromParentNode">
+    <cr:widget.paginate widgetId="posts-paginator" parentNode="{parentNode}" nodeTypeFilter="RobertLemke.Plugin.Blog:Post" as="paginatedPosts" configuration="{itemsPerPage: 5, insertBelow: 1, maximumNumberOfLinks: 15}">
+        <f:render section="paginatedPosts" arguments="{paginatedPosts: paginatedPosts}"/>
+    </cr:widget.paginate>
+</f:section>
+
+<f:section name="fromNodes">
+    <cr:widget.paginate widgetId="posts-paginator" nodes="{nodes}" nodeTypeFilter="RobertLemke.Plugin.Blog:Post" as="paginatedPosts" configuration="{itemsPerPage: 5, insertBelow: 1, maximumNumberOfLinks: 15}">
+        <f:render section="paginatedPosts" arguments="{paginatedPosts: paginatedPosts}"/>
+    </cr:widget.paginate>
+</f:section>
+
+<f:section name="paginatedPosts">
+    <ol class="posts">
+        <f:for each="{paginatedPosts}" as="post">
+            <li class="post">
+                <h2>
+                    <neos:link.node node="{post}">{post.properties.title}</neos:link.node>
+                    <f:if condition="{post.removed}"> (removed)</f:if>
+                </h2>
+                <p class="content">
+                    <neos:link.node node="{post}" class="invisible-link">
+                        <blog:teaser node="{post}"/>
+                    </neos:link.node> <neos:link.node node="{post}" class="read-more"><f:translate package="RobertLemke.Plugin.Blog">Read more</f:translate></neos:link.node>
+                </p>
+            </li>
+            <hr/>
+        </f:for>
+    </ol>
+    {pagination.numberOfPages}
+</f:section>