From 04dac6f87fd2f0dfdd57155c3b144ceaad890928 Mon Sep 17 00:00:00 2001
From: Bat <baptiste@gelez.xyz>
Date: Wed, 25 Jul 2018 14:29:34 +0200
Subject: [PATCH] Add pagination links

---
 po/de.po                          |  6 ++++++
 po/en.po                          |  5 +++++
 po/fr.po                          |  6 ++++++
 po/pl.po                          |  7 +++++++
 src/routes/blogs.rs               |  4 +++-
 src/routes/mod.rs                 |  9 +++++++++
 templates/blogs/details.html.tera |  1 +
 templates/macros.html.tera        | 10 ++++++++++
 8 files changed, 47 insertions(+), 1 deletion(-)

diff --git a/po/de.po b/po/de.po
index 207df2c7..2d442bad 100644
--- a/po/de.po
+++ b/po/de.po
@@ -339,3 +339,9 @@ msgstr ""
 
 msgid "Optional"
 msgstr ""
+
+#, fuzzy
+msgid "One article in this blog"
+msgid_plural "{{ count }} articles in this blog"
+msgstr[0] "Du bist kein Autor in diesem Blog."
+msgstr[1] "Du bist kein Autor in diesem Blog."
diff --git a/po/en.po b/po/en.po
index 40764f17..3da7d51e 100644
--- a/po/en.po
+++ b/po/en.po
@@ -332,3 +332,8 @@ msgstr ""
 
 msgid "Optional"
 msgstr ""
+
+msgid "One article in this blog"
+msgid_plural "{{ count }} articles in this blog"
+msgstr[0] ""
+msgstr[1] ""
diff --git a/po/fr.po b/po/fr.po
index 07e1fe9b..c58c2ae3 100644
--- a/po/fr.po
+++ b/po/fr.po
@@ -335,3 +335,9 @@ msgstr ""
 
 msgid "Optional"
 msgstr "Optionnel"
+
+#, fuzzy
+msgid "One article in this blog"
+msgid_plural "{{ count }} articles in this blog"
+msgstr[0] "{{ count }} aut⋅eur⋅rice dans ce blog : "
+msgstr[1] "{{ count }} aut⋅eur⋅rice⋅s dans ce blog : "
diff --git a/po/pl.po b/po/pl.po
index 69163662..086f0fa4 100644
--- a/po/pl.po
+++ b/po/pl.po
@@ -343,5 +343,12 @@ msgstr ""
 msgid "Optional"
 msgstr "Nieobowiązkowe"
 
+#, fuzzy
+msgid "One article in this blog"
+msgid_plural "{{ count }} articles in this blog"
+msgstr[0] "Ten blog ma jednego autora: "
+msgstr[1] "Ten blog ma {{ count }} autorów: "
+msgstr[2] "Ten blog ma {{ count }} autorów: "
+
 #~ msgid "Logowanie"
 #~ msgstr "Zaloguj się"
diff --git a/src/routes/blogs.rs b/src/routes/blogs.rs
index d725a525..39df22a0 100644
--- a/src/routes/blogs.rs
+++ b/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)
         }))
     })    
 }
diff --git a/src/routes/mod.rs b/src/routes/mod.rs
index 8bfd4cf0..c46fc2f2 100644
--- a/src/routes/mod.rs
+++ b/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)
     }
diff --git a/templates/blogs/details.html.tera b/templates/blogs/details.html.tera
index dd23af4d..9c484f60 100644
--- a/templates/blogs/details.html.tera
+++ b/templates/blogs/details.html.tera
@@ -36,5 +36,6 @@
                 {{ macros::post_card(article=article) }}
             {% endfor %}
         </div>
+        {{ macros::paginate(page=page, total=n_pages) }}
     </section>
 {% endblock content %}
diff --git a/templates/macros.html.tera b/templates/macros.html.tera
index d474a6be..e6b04564 100644
--- a/templates/macros.html.tera
+++ b/templates/macros.html.tera
@@ -35,3 +35,13 @@
     {% endif %}
     <input type="{{ type }}" id="{{ name }}" name="{{ name }}" value="{{ form[name] | default(value="") }}" {{ props | safe }}/>
 {% endmacro input %}
+{% macro paginate(page, total, previous="Previous page", next="Next page") %}
+    <div class="pagination">
+        {% if page != 1 %}
+            <a href="?page={{ page - 1 }}">{{ previous | _ }}</a>
+        {% endif %}
+        {% if page < total %}
+            <a href="?page={{ page + 1 }}">{{ next | _ }}</a>
+        {% endif %}
+    </div>
+{% endmacro %}