Refactored to use postgres for production and sqlite for development

Data/ApplicationDbInitializer.cs

@@ -1,30 +1,24 @@
-using Example.Models;
+using Example.Models;
 
-namespace Example.Data
+namespace Example.Data;
+
+public static class ApplicationDbInitializer
 {
-    public static class ApplicationDbInitializer
+    public static void SeedDevelopmentData(ApplicationDbContext db)
     {
-        public static void Initialize(ApplicationDbContext db)
+        if (db.Authors.Any())
         {
-            // Delete the database before we initialize it. This is common to do during development.
-            db.Database.EnsureDeleted();
-
-            // Recreate the database and tables according to our models
-            db.Database.EnsureCreated();
-
-            // Add test data to simplify debugging and testing
-
-            var authors = new[]
-            {
-                new Author("Author 1", "Author 1", new DateTime(1981, 1, 1)),
-                new Author("Author 2", "Author 2", new DateTime(1982, 2, 2)),
-                new Author("Author 3", "Author 3", new DateTime(1983, 3, 3))
-            };
-            
-            db.Authors.AddRange(authors);
-
-            // Finally save the added relationships
-            db.SaveChanges();
+            return;
         }
+
+        var authors = new[]
+        {
+            new Author("Author 1", "Author 1", new DateTime(1981, 1, 1)),
+            new Author("Author 2", "Author 2", new DateTime(1982, 2, 2)),
+            new Author("Author 3", "Author 3", new DateTime(1983, 3, 3))
+        };
+
+        db.Authors.AddRange(authors);
+        db.SaveChanges();
     }
 }