Added main entities

I18N Commander/DataModel/Database/Common/DataContext.cs

@@ -6,6 +6,12 @@ public sealed class DataContext : DbContext
 {
     public DbSet<Setting>? Settings { get; set; }
 
+    public DbSet<Section>? Sections { get; set; }
+
+    public DbSet<TextElement>? TextElements { get; set; }
+
+    public DbSet<Translation>? Translations { get; set; }
+
     public DataContext(DbContextOptions<DataContext> contextOptions) : base(contextOptions)
     {
     }
@@ -14,7 +20,7 @@ public sealed class DataContext : DbContext
     {
         base.OnModelCreating(modelBuilder);
 
-        #region Ideas
+        #region Settings
         
         modelBuilder.Entity<Setting>().HasIndex(n => n.Id);
         modelBuilder.Entity<Setting>().HasIndex(n => n.Name).IsUnique();
@@ -24,5 +30,27 @@ public sealed class DataContext : DbContext
         modelBuilder.Entity<Setting>().HasIndex(n => n.TextValue);
 
         #endregion
+
+        #region Sections
+
+        modelBuilder.Entity<Section>().HasIndex(n => n.Id);
+        modelBuilder.Entity<Section>().HasIndex(n => n.Name);
+
+        #endregion
+
+        #region TextElements
+
+        modelBuilder.Entity<TextElement>().HasIndex(n => n.Id);
+        modelBuilder.Entity<TextElement>().HasIndex(n => n.Code);
+
+        #endregion
+
+        #region Translations
+
+        modelBuilder.Entity<Translation>().HasIndex(n => n.Id);
+        modelBuilder.Entity<Translation>().HasIndex(n => n.Culture);
+        modelBuilder.Entity<Translation>().HasIndex(n => n.Text);
+
+        #endregion
     }
 }

I18N Commander/DataModel/Database/Section.cs

@@ -0,0 +1,15 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace DataModel.Database;
+
+public sealed class Section
+{
+    [Key]
+    public int Id { get; set; }
+
+    public string Name { get; set; } = string.Empty;
+
+    public Section Parent { get; set; }
+
+    public List<TextElement> TextElements { get; set; }
+}

I18N Commander/DataModel/Database/Setting.cs

@@ -2,7 +2,7 @@
 
 namespace DataModel.Database;
 
-public class Setting
+public sealed class Setting
 {
     [Key]
     public int Id { get; set; }

I18N Commander/DataModel/Database/TextElement.cs

@@ -0,0 +1,15 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace DataModel.Database;
+
+public sealed class TextElement
+{
+    [Key]
+    public int Id { get; set; }
+
+    public string Code { get; set; } = string.Empty;
+
+    public Section Section { get; set; }
+
+    public List<Translation> Translations { get; set; }
+}

I18N Commander/DataModel/Database/Translation.cs

@@ -0,0 +1,12 @@
+namespace DataModel.Database;
+
+public sealed class Translation
+{
+    public int Id { get; set; }
+
+    public TextElement TextElement { get; set; }
+
+    public string Culture { get; set; } = "en-US";
+
+    public string Text { get; set; } = string.Empty;
+}