From 85a9e9d44006da8924db1cf92827dda51d2b584e Mon Sep 17 00:00:00 2001
From: gabatxo1312 <admin1312@kl.netlib.re>
Date: Wed, 28 Jan 2026 23:26:37 +0100
Subject: [PATCH] Add paginate

---
 src/models/book.rs   | 28 ++++++++++++++++++++++++++++
 src/routes/book.rs   | 26 ++++++++++++++++++++++----
 templates/index.html | 22 ++++++++++++++++++++++
 3 files changed, 72 insertions(+), 4 deletions(-)

diff --git a/src/models/book.rs b/src/models/book.rs
index 1493798..b449723 100644
--- a/src/models/book.rs
+++ b/src/models/book.rs
@@ -51,6 +51,13 @@ pub struct BookOperator {
     pub state: AppState,
 }
 
+#[derive(Debug, Clone)]
+pub struct BooksPaginate {
+    pub books: Vec<Model>,
+    pub current_page: u64,
+    pub total_page: u64,
+}
+
 impl BookOperator {
     pub fn new(state: AppState) -> Self {
         Self { state }
@@ -64,6 +71,27 @@ impl BookOperator {
             .context(DBSnafu)
     }
 
+    pub async fn list_paginate(&self, page: u64) -> Result<BooksPaginate, BookError> {
+        let page = if page > 0 { page } else { 1 }; // keep 1-indexed
+        let page_0indexed = page - 1; // convert for SeaORM (0-based index)
+
+        let book_pages = Entity::find()
+            .order_by_desc(Column::Id)
+            .paginate(&self.state.db, 100);
+
+        let books = book_pages
+            .fetch_page(page_0indexed)
+            .await
+            .context(DBSnafu)?;
+        let total_page = book_pages.num_pages().await.context(DBSnafu)?;
+
+        Ok(BooksPaginate {
+            books,
+            current_page: page,
+            total_page,
+        })
+    }
+
     pub async fn find_by_id(&self, id: i32) -> Result<Model, BookError> {
         let book_by_id = Entity::find_by_id(id)
             .one(&self.state.db)
diff --git a/src/routes/book.rs b/src/routes/book.rs
index b23b541..ea977d5 100644
--- a/src/routes/book.rs
+++ b/src/routes/book.rs
@@ -4,7 +4,7 @@ use askama::Template;
 use askama_web::WebTemplate;
 use axum::{
     Form,
-    extract::{Path, State},
+    extract::{Path, Query, State},
     response::{IntoResponse, Redirect},
 };
 use serde::Deserialize;
@@ -26,6 +26,8 @@ use crate::{
 #[template(path = "index.html")]
 struct BookIndexTemplate {
     books_with_user: Vec<BookWithUser>,
+    current_page: u64,
+    total_page: u64,
 }
 
 // Book list with the owner and the current holder inside
@@ -35,21 +37,35 @@ struct BookWithUser {
     pub current_holder: Option<UserModel>,
 }
 
+#[derive(Deserialize)]
+pub struct Pagination {
+    pub page: Option<usize>,
+}
+
 pub async fn index(
     State(state): State<AppState>,
+    Query(pagination): Query<Pagination>,
 ) -> Result<impl axum::response::IntoResponse, AppStateError> {
+    let page: u64 = pagination
+        .page
+        .map(|p| p.max(1) as u64) // Minimum 1
+        .unwrap_or(1);
+
     let users = UserOperator::new(state.clone())
         .list()
         .await
         .context(UserSnafu)?;
-    let books = BookOperator::new(state).list().await.context(BookSnafu)?;
+    let books_paginate = BookOperator::new(state)
+        .list_paginate(page)
+        .await
+        .context(BookSnafu)?;
 
     let user_by_id: HashMap<i32, UserModel> =
         users.into_iter().map(|user| (user.id, user)).collect();
 
-    let mut result: Vec<BookWithUser> = Vec::with_capacity(books.len());
+    let mut result: Vec<BookWithUser> = Vec::with_capacity(books_paginate.books.len());
 
-    for book in books {
+    for book in books_paginate.books {
         let owner = user_by_id.get(&book.owner_id).cloned().unwrap();
         let current_holder = if let Some(current_holder_id) = book.current_holder_id {
             user_by_id.get(&current_holder_id).cloned()
@@ -66,6 +82,8 @@ pub async fn index(
 
     Ok(BookIndexTemplate {
         books_with_user: result,
+        current_page: books_paginate.current_page,
+        total_page: books_paginate.total_page,
     })
 }
 
diff --git a/templates/index.html b/templates/index.html
index 1b18927..152029b 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -40,5 +40,27 @@
         {% endfor %}
       </tbody>
     </table>
+    
+    {% if total_page > 1 %}
+      <nav aria-label="Page navigation">
+        <ul class="pagination">
+          <li class="page-item {% if current_page <= 1 %}disabled{% endif %}">
+            <a class="page-link" href="/?page={% if current_page > 1 %}{{ current_page - 1 }}{% else %}1{% endif %}">Prev</a>
+          </li>
+        
+          {% for page in 1..(total_page + 1) %}
+            {% if page >= current_page - 1 && page <= current_page + 1 %}
+              <li class="page-item {% if page == current_page %}active{% endif %}">
+                <a class="page-link" href="/?page={{ page }}">{{ page }}</a>
+              </li>
+            {% endif %}
+          {% endfor %}
+
+          <li class="page-item {% if current_page == total_page %}disabled{% endif %}">
+            <a class="page-link" href="/?page={{ current_page + 1 }}">Next</a>
+          </li>
+        </ul>
+      </nav>
+    {% endif %}
   {% endcall %}
 {% endblock %}