add new template tag to get item edit link (taincan/tainacan-theme#6)

src/classes/entities/class-tainacan-item.php

@@ -681,4 +681,13 @@ class Item extends Entity {
 		
 	}
 	
+	/**
+	* Gets the url to the edit page for this item 
+	*/
+	public function get_edit_url() {
+		$collection_id = $this->get_collection_id();
+		$id = $this->get_id();
+		return admin_url("?page=tainacan_admin#/collections/$collection_id/items/$id/edit");
+	}
+	
 }

src/theme-helper/template-tags.php

@@ -329,6 +329,40 @@ function tainacan_current_view_displays($property) {
 	return false;
 }
 
+/**
+ *
+ * Displays the link to the edit page of an item, if current user have permission 
+ * 
+ * Can be used outside The Lopp if an ID is provided.
+ * 
+ * The same as edit_post_link() (@see https://developer.wordpress.org/reference/functions/edit_post_link/) but for 
+ * Tainacan Items
+ *
+ * @param string $text 	(optional) Anchor text. If null, default is 'Edit this item'. 
+ * @param string $before 	(optional) Display before edit link 
+ * @param string $afer 	(optional) Display after edit link 
+ * @param int|WP_Post $id 	(optional) Post ID or post object. Default is the global $post.
+ * @param string $class 	(optional) Add custom class to link
+ * 
+ */
+function tainacan_the_item_edit_link( $text = null, $before = '', $after = '', $id = 0, $class = 'post-edit-link' ) {
+	if ( ! $item = tainacan_get_item( $id ) ) {
+		return;
+	}
+	
+	if ( ! $item->can_edit() || ! $url = $item->get_edit_url() ) {
+		return;
+	}
+	
+	if ( null === $text ) {
+		$text = __( 'Edit this item', 'tainacan' );
+	}
+	
+	$link = '<a class="' . esc_attr( $class ) . '" href="' . esc_url( $url ) . '">' . $text . '</a>';
+	
+	echo $before . $link . $after;
+}
+
 /**
  * Gets the initials from a name.
  *