working on paginate alias log page

app/dashboard/templates/dashboard/alias_log.html

@@ -7,7 +7,7 @@
 {% endblock %}
 
 {% block default_content %}
-  <div class="page-header row">
+  <div class="page-header row ml-0">
     <h3 class="page-title col">
       {{ alias }}
     </h3>
@@ -16,7 +16,7 @@
   <div class="row">
     {% for log in logs %}
       <div class="col-12">
-        <div class="my-2 p-2 card">
+        <div class="my-2 p-2 card border-light">
           <div class="font-weight-bold">{{ log.when | dt }}</div>
           <div>
             <span class="mr-2">{{ log.website_from or log.website_email }}</span>
@@ -40,6 +40,12 @@
     {% endfor %}
   </div>
 
+  <nav aria-label="Alias log navigation">
+    <ul class="pagination">
+      <li class="page-item {% if page_id == 0 %}disabled{% endif %}"><a class="page-link" href="{{ url_for('dashboard.alias_log', alias=alias, page_id=page_id-1) }}">Previous</a></li>
+      <li class="page-item {% if last_page %}disabled{% endif %}"><a class="page-link" href="{{ url_for('dashboard.alias_log', alias=alias, page_id=page_id+1) }}">Next</a></li>
+    </ul>
+  </nav>
 {% endblock %}
 
 {% block script %}

app/dashboard/views/alias_log.py

@@ -1,13 +1,15 @@
 from dataclasses import dataclass
 
 import arrow
-from flask import render_template, flash, redirect, url_for
+from flask import render_template, flash, redirect, url_for, abort
 from flask_login import login_required, current_user
 
 from app.dashboard.base import dashboard_bp
 from app.extensions import db
 from app.models import GenEmail, ForwardEmailLog, ForwardEmail
 
+LIMIT = 3
+
 
 @dataclass
 class AliasLog:
@@ -19,9 +21,10 @@ class AliasLog:
     blocked: bool
 
 
-@dashboard_bp.route("/alias_log/<alias>", methods=["GET"])
+@dashboard_bp.route("/alias_log/<alias>", methods=["GET"], defaults={'page_id': 0})
+@dashboard_bp.route("/alias_log/<alias>/<int:page_id>")
 @login_required
-def alias_log(alias):
+def alias_log(alias, page_id):
     gen_email = GenEmail.get_by(email=alias)
 
     # sanity check
@@ -33,19 +36,23 @@ def alias_log(alias):
         flash("You do not have access to this page", "warning")
         return redirect(url_for("dashboard.index"))
 
+    logs = get_alias_log(gen_email, page_id)
+    last_page = len(logs) < LIMIT  # lightweight pagination without counting all objects
+
     return render_template(
-        "dashboard/alias_log.html", logs=get_alias_log(gen_email), alias=alias
+        "dashboard/alias_log.html", **locals()
     )
 
 
-def get_alias_log(gen_email: GenEmail):
+def get_alias_log(gen_email: GenEmail, page_id=0):
     logs: [AliasLog] = []
 
     q = (
         db.session.query(ForwardEmail, ForwardEmailLog)
-        .filter(ForwardEmail.id == ForwardEmailLog.forward_id)
+            .filter(ForwardEmail.id == ForwardEmailLog.forward_id)
-        .filter(ForwardEmail.gen_email_id == gen_email.id)
+            .filter(ForwardEmail.gen_email_id == gen_email.id)
-        .all()
+            .limit(LIMIT)
+            .offset(page_id * LIMIT)
     )
 
     for fe, fel in q: