Generate links to diffs from changes feed

src/resources/changes_resource.rs

@@ -12,6 +12,7 @@ use site::Layout;
 use state::State;
 use web::{Resource, ResponseFuture};
 
+use super::diff_resource::{self, ArticleRevisionReference};
 use super::pagination::Pagination;
 use super::TemporaryRedirectResource;
 
@@ -217,6 +218,8 @@ impl Resource for ChangesResource {
             title: String,
 
             _latest: bool,
+
+            diff_link: String,
         }
 
         impl<'a> Row<'a> {
@@ -334,6 +337,10 @@ impl Resource for ChangesResource {
                         _slug: x.slug,
                         title: x.title,
                         _latest: x.latest,
+                        diff_link: diff_resource::QueryParameters::new(
+                            ArticleRevisionReference::Some { article_id: x.article_id as u32, revision: x.revision as u32 - 1 },
+                            ArticleRevisionReference::Some { article_id: x.article_id as u32, revision: x.revision as u32 },
+                        ).into_link()
                     }
                 }).collect::<Vec<_>>();
 

src/resources/diff_resource.rs

@@ -120,7 +120,7 @@ impl QueryParameters {
     }
 
     pub fn into_link(self) -> String {
-        serde_urlencoded::to_string(self).expect("Serializing to String cannot fail")
+        format!("_diff?{}", serde_urlencoded::to_string(self).expect("Serializing to String cannot fail"))
     }
 }
 

templates/changes.html

@@ -24,6 +24,7 @@
         <th>Article</th>
         <th>Updated</th>
         {{#show_authors?}}<th>Author</th>{{/show_authors}}
+        <th></th>
     </tr>
     {{/changes}}
     {{#changes}}
@@ -31,6 +32,7 @@
         <td><a href="_revisions/{{.article_id}}/{{.revision}}">{{.title}}</a></td>
         <td>{{.created}}</td>
         {{#show_authors?}}<td>{{#..author}}<a href="{{...author_link()}}">{{.}}</a>{{/..author}}{{^..author}}<i>Anonymous</i>{{/..author}}</td>{{/show_authors}}
+        <td><a href="{{.diff_link}}">change</a></td>
     </tr>
     {{/changes}}
 </table>

templates/diff.html

@@ -1,6 +1,9 @@
 <div class="container">
 <header>
-<h1>Diff</h1>
+<h1>Difference</h1>
+</header>
+
+<header>
 <h1>{{#title}}{{#.removed}}<span class="removed">{{.}}</span>{{/.removed}}{{#.same}}{{.}}{{/.same}}{{#.added}}<span class="added">{{.}}</span>{{/.added}}{{/title}}</h1>
 </header>