Implement currency settings and formatting

inventory/migrations/0008_settings_currency_settings_currency_symbol_and_more.py

@@ -0,0 +1,28 @@
+# Generated by Django 5.1.4 on 2025-01-07 18:19
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('inventory', '0007_settings_track_amount'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='settings',
+            name='currency',
+            field=models.CharField(default='Euro', help_text='Currency name', max_length=30),
+        ),
+        migrations.AddField(
+            model_name='settings',
+            name='currency_symbol',
+            field=models.CharField(default='€', help_text='Currency symbol', max_length=20),
+        ),
+        migrations.AddField(
+            model_name='settings',
+            name='currency_symbol_position',
+            field=models.BooleanField(default=True, help_text='Currency symbol after amount'),
+        ),
+    ]

inventory/templates/inventory/cell.html

@@ -1,5 +1,7 @@
 {% load static %}
 {% load admin_urls %}
+{% load currency %}
+
 <div class="cell{% if hilight == item.id %} search-hilight{% endif %}">
     {% if item.name %}
         {% if item.metadata.package %}
@@ -26,7 +28,7 @@
             {% endif %}
         {% endif %}
         {% if item.price %}
-        <div class="price">{{ item.price | floatformat:2 }} &euro;</div>
+        <div class="price">{{ item.price | currency:"short" }}</div>
         {% endif %}
         {% if item.form_factor %}
         <div class="form_factor">{{ item.form_factor.name }}</div>

inventory/templates/inventory/item_detail.html

@@ -1,6 +1,7 @@
 {% extends "base.html" %}
 {% load static %}
 {% load formatstring %}
+{% load currency %}
 
 {% block title %}{{ item }}{% endblock %}
 
@@ -103,7 +104,7 @@
         {% if item.price %}
             <tr>
                 <th>Price</th>
-                <td>{{ item.price }} Euro</td>
+                <td>{{ item.price | currency:"detail" }} <span class="small">{% if settings.track_amount %}(sum: {{ item.value | currency:"long" }}){% endif %}</span></td>
             </tr>
         {% endif %}
 

inventory/templatetags/currency.py

@@ -0,0 +1,29 @@
+from django import template
+from django.utils.safestring import mark_safe
+from django.utils.formats import number_format
+
+from inventory.models import Settings
+
+register = template.Library()
+s = Settings.objects.first()
+
+@register.filter(name='currency')
+def currency(value, format):
+    value = float(value)
+
+    if format == 'detail':
+        value = number_format(round(value, 3), 3, use_l10n=True)
+    else:
+        value = number_format(round(value, 2), 2, use_l10n=True)
+
+    if format == 'long' or format == 'detail':
+        symbol = s.currency
+    else:
+        symbol = s.currency_symbol
+    
+    if s.currency_symbol_position:
+        result = f"{value} {symbol}"
+    else:
+        result = f"{symbol} {value}"
+
+    return mark_safe(result)