Refactor generation of links from slugs

This fixes a bug where the cancel-link on the front page would be to "" rather than "."

src/models.rs

@@ -1,5 +1,13 @@
 use chrono;
 
+fn slug_link(slug: &str) -> &str {
+    if slug.is_empty() {
+        "."
+    } else {
+        slug
+    }
+}
+
 #[derive(Debug, Queryable)]
 pub struct ArticleRevision {
     pub sequence_number: i32,
@@ -18,13 +26,7 @@ pub struct ArticleRevision {
 }
 
 impl ArticleRevision {
-    pub fn link(&self) -> &str {
+    pub fn link(&self) -> &str { slug_link(&self.slug) }
-        if self.slug.is_empty() {
-            "."
-        } else {
-            &self.slug
-        }
-    }
 }
 
 #[derive(Debug, Queryable)]
@@ -43,9 +45,17 @@ pub struct ArticleRevisionStub {
     pub author: Option<String>,
 }
 
+impl ArticleRevisionStub {
+    pub fn link(&self) -> &str { slug_link(&self.slug) }
+}
+
 #[derive(Debug, Queryable, Serialize)]
 pub struct SearchResult {
     pub title: String,
     pub snippet: String,
     pub slug: String,
 }
+
+impl SearchResult {
+    pub fn link(&self) -> &str { slug_link(&self.slug) }
+}

src/resources/article_resource.rs

@@ -106,7 +106,7 @@ impl Resource for ArticleResource {
                                 data.author.as_ref().map(|x| &**x)
                             )),
                             edit: self.edit,
-                            cancel_url: Some(&data.slug),
+                            cancel_url: Some(data.link()),
                             title: &data.title,
                             raw: &data.body,
                             rendered: render_markdown(&data.body),

src/resources/search_resource.rs

@@ -6,7 +6,7 @@ use serde_json;
 use serde_urlencoded;
 
 use mimes::*;
-use models;
+use models::SearchResult;
 use site::Layout;
 use state::State;
 use web::{Resource, ResponseFuture};
@@ -148,33 +148,16 @@ impl Resource for SearchResource {
         #[derive(Serialize)]
         struct JsonResponse<'a> {
             query: &'a str,
-            hits: &'a [models::SearchResult],
+            hits: &'a [SearchResult],
             prev: Option<String>,
             next: Option<String>,
         }
 
-        struct Hit<'a> {
-            index: usize,
-            slug: &'a str,
-            title: &'a str,
-            snippet: &'a str,
-        }
-
-        impl<'a> Hit<'a> {
-            fn link(&self) -> &'a str {
-                if self.slug == "" {
-                    "."
-                } else {
-                    self.slug
-                }
-            }
-        }
-
         #[derive(BartDisplay)]
         #[template="templates/search.html"]
         struct Template<'a> {
             query: &'a str,
-            hits: &'a [Hit<'a>],
+            hits: &'a [(usize, &'a SearchResult)],
             prev: Option<String>,
             next: Option<String>,
         }
@@ -223,12 +206,6 @@ impl Resource for SearchResource {
                                 query: self.query.as_ref().map(|x| &**x).unwrap_or(""),
                                 hits: &data.iter()
                                     .enumerate()
-                                    .map(|(i, result)| Hit {
-                                        index: i,
-                                        slug: &result.slug,
-                                        title: &result.title,
-                                        snippet: &result.snippet,
-                                    })
                                     .collect::<Vec<_>>(),
                                 prev,
                                 next,

src/resources/sitemap_resource.rs

@@ -4,6 +4,7 @@ use hyper::header::ContentType;
 use hyper::server::*;
 
 use mimes::*;
+use models::ArticleRevisionStub;
 use site::Layout;
 use state::State;
 use web::{Resource, ResponseFuture};
@@ -35,12 +36,7 @@ impl Resource for SitemapResource {
         #[derive(BartDisplay)]
         #[template="templates/sitemap.html"]
         struct Template<'a> {
-            articles: &'a [ArticleReference],
+            articles: &'a [ArticleRevisionStub],
-        }
-
-        struct ArticleReference {
-            link: String,
-            title: String,
         }
 
         let data = self.state.get_latest_article_revision_stubs();
@@ -48,20 +44,13 @@ impl Resource for SitemapResource {
 
         Box::new(data.join(head)
             .and_then(move |(articles, head)| {
-                use std::iter::Iterator;
-
-                let articles = &articles.into_iter().map(|x| {
-                    ArticleReference {
-                        link: if x.slug.is_empty() { ".".to_owned() } else { x.slug },
-                        title: x.title,
-                    }
-                }).collect::<Vec<_>>();
-
                 Ok(head
                     .with_body(Layout {
                         base: None, // Hmm, should perhaps accept `base` as argument
                         title: "Sitemap",
-                        body: &Template { articles },
+                        body: &Template {
+                            articles: &articles,
+                        },
                     }.to_string()))
             }))
     }

templates/search.html

@@ -13,7 +13,7 @@
 
 <ul class="search-results default-keyboard-focus-control">
     {{#hits}}
-    <li class="search-result"><a data-focusindex="{{.index}}" class="link" href="{{.link()}}"><p class="title">{{.title}}</p><p class="snippet">{{.snippet}}</p></a></li>
+    <li class="search-result"><a data-focusindex="{{.0}}" class="link" href="{{.1.link()}}"><p class="title">{{.1.title}}</p><p class="snippet">{{.1.snippet}}</p></a></li>
     {{/hits}}
 </ul>
 {{/hits}}

templates/sitemap.html

@@ -6,7 +6,7 @@
 <article>
 <ul class="dense"
     {{#articles}}
-    ><li><a href="{{.link}}">{{.title}}</a></li
+    ><li><a href="{{.link()}}">{{.title}}</a></li
     {{/articles}}
 ></ul>
 </article>