Add SiteSettings model with currency_symbol field and replace hardcoded currency symbols in templates

smartsoltech/web/admin.py

@@ -2,7 +2,8 @@ from django.contrib import admin
 from .models import (
     Service, Project, Client, Order, Review, BlogPost,
     Category, ServiceRequest, AboutPage, FooterSettings, TeamMember,
-    PortfolioItem, PrivacyPolicy, TermsOfUse, NewsArticle, CareerVacancy
+    PortfolioItem, PrivacyPolicy, TermsOfUse, NewsArticle, CareerVacancy,
+    SiteSettings
 )
 from .forms import ProjectForm
 
@@ -218,6 +219,25 @@ class TeamMemberAdmin(admin.ModelAdmin):
     
     def full_name(self, obj):
         return obj.full_name
-    full_name.short_description = 'ФИО'
-    full_name.admin_order_field = 'last_name'
+    full_name.short_description = 'ФИО'  # type: ignore
+    full_name.admin_order_field = 'last_name'  # type: ignore
+
+
+@admin.register(SiteSettings)
+class SiteSettingsAdmin(admin.ModelAdmin):
+    list_display = ('currency_symbol',)
+    fieldsets = (
+        ('Настройки валюты', {
+            'fields': ('currency_symbol',)
+        }),
+    )
+    
+    def has_add_permission(self, request):
+        # Запретить создание новых записей (singleton)
+        return not SiteSettings.objects.exists()
+    
+    def has_delete_permission(self, request, obj=None):
+        # Запретить удаление настроек
+        return False
+