Add pagination links

src/routes/blogs.rs

@@ -34,7 +34,9 @@ fn paginated_details(name: String, conn: DbConn, user: Option<User>, page: Page)
             "posts": posts.into_iter().map(|p| p.to_json(&*conn)).collect::<Vec<serde_json::Value>>(),
             "authors": authors.into_iter().map(|u| u.to_json(&*conn)).collect::<Vec<serde_json::Value>>(),
             "n_authors": authors.len(),
-            "n_articles": articles.len()
+            "n_articles": articles.len(),
+            "page": page.page,
+            "n_pages": Page::total(articles.len() as i32)
         }))
     })    
 }

src/routes/mod.rs

@@ -61,6 +61,15 @@ impl Page {
         }
     }
 
+    /// Computes the total number of pages needed to display n_items
+    pub fn total(n_items: i32) -> i32 {
+        if n_items % ITEMS_PER_PAGE == 0 {
+            n_items / ITEMS_PER_PAGE
+        } else {
+            (n_items / ITEMS_PER_PAGE) + 1
+        }
+    }
+
     pub fn limits(&self) -> (i32, i32) {
         ((self.page - 1) * ITEMS_PER_PAGE, self.page * ITEMS_PER_PAGE)
     }