Update to emit transformed NavPropertyNames (PR #102 by dmayhak)

Author: codingdna2

src/EntityFrameworkCore.Scaffolding.Handlebars/HbsCSharpDbContextGenerator.cs

@@ -502,7 +502,7 @@ private void GenerateKey(IKey key, IEntityType entityType, bool useDataAnnotatio
 
             var lines = new List<string>
             {
-                $".{nameof(EntityTypeBuilder.HasKey)}(e => {GenerateLambdaToKey(key.Properties, "e")})"
+                $".{nameof(EntityTypeBuilder.HasKey)}(e => {GenerateLambdaToKey(key.Properties, "e", EntityTypeTransformationService.TransformPropertyName)})"
             };
 
             if (explicitName)
@@ -568,7 +568,7 @@ private void GenerateIndex(IIndex index, IndentedStringBuilder sb)
         {
             var lines = new List<string>
             {
-                $".{nameof(EntityTypeBuilder.HasIndex)}(e => {GenerateLambdaToKey(index.Properties, "e")})"
+                $".{nameof(EntityTypeBuilder.HasIndex)}(e => {GenerateLambdaToKey(index.Properties, "e", EntityTypeTransformationService.TransformPropertyName)})"
             };
 
             var annotations = index.GetAnnotations().ToList();
@@ -623,7 +623,7 @@ private void GenerateProperty(IProperty property, bool useDataAnnotations, Inden
         {
             var lines = new List<string>
             {
-                $".{nameof(EntityTypeBuilder.Property)}(e => e.{property.Name})"
+                $".{nameof(EntityTypeBuilder.Property)}(e => e.{EntityTypeTransformationService.TransformPropertyName(property.Name)})"
             };
 
             var annotations = property.GetAnnotations().ToList();
@@ -800,24 +800,24 @@ private void GenerateRelationship(IForeignKey foreignKey, bool useDataAnnotation
 
             var lines = new List<string>
             {
-                $".{nameof(EntityTypeBuilder.HasOne)}(" + (foreignKey.DependentToPrincipal != null ? $"d => d.{foreignKey.DependentToPrincipal.Name}" : null) + ")",
+                $".{nameof(EntityTypeBuilder.HasOne)}(" + (foreignKey.DependentToPrincipal != null ? $"d => d.{EntityTypeTransformationService.TransformNavPropertyName(foreignKey.DependentToPrincipal.Name)}" : null) + ")",
                 $".{(foreignKey.IsUnique ? nameof(ReferenceNavigationBuilder.WithOne) : nameof(ReferenceNavigationBuilder.WithMany))}"
-                + $"(" + (foreignKey.PrincipalToDependent != null ? $"p => p.{foreignKey.PrincipalToDependent.Name}" : null) + ")"
+                + $"(" + (foreignKey.PrincipalToDependent != null ? $"p => p.{EntityTypeTransformationService.TransformNavPropertyName(foreignKey.PrincipalToDependent.Name)}" : null) + ")"
             };
 
             if (!foreignKey.PrincipalKey.IsPrimaryKey())
             {
                 canUseDataAnnotations = false;
                 lines.Add(
                     $".{nameof(ReferenceReferenceBuilder.HasPrincipalKey)}"
-                    + (foreignKey.IsUnique ? $"<{((ITypeBase)foreignKey.PrincipalEntityType).DisplayName()}>" : "")
-                    + $"(p => {GenerateLambdaToKey(foreignKey.PrincipalKey.Properties, "p")})");
+                    + (foreignKey.IsUnique ? $"<{EntityTypeTransformationService.TransformPropertyName(((ITypeBase)foreignKey.PrincipalEntityType).DisplayName())}>" : "")
+                    + $"(p => {GenerateLambdaToKey(foreignKey.PrincipalKey.Properties, "p", EntityTypeTransformationService.TransformNavPropertyName)})");
             }
 
             lines.Add(
                 $".{nameof(ReferenceReferenceBuilder.HasForeignKey)}"
-                + (foreignKey.IsUnique ? $"<{((ITypeBase)foreignKey.DeclaringEntityType).DisplayName()}>" : "")
-                + $"(d => {GenerateLambdaToKey(foreignKey.Properties, "d")})");
+                + (foreignKey.IsUnique ? $"<{EntityTypeTransformationService.TransformPropertyName(((ITypeBase)foreignKey.DeclaringEntityType).DisplayName())}>" : "")
+                + $"(d => {GenerateLambdaToKey(foreignKey.Properties, "d", EntityTypeTransformationService.TransformPropertyName)})");
 
             var defaultOnDeleteAction = foreignKey.IsRequired
                 ? DeleteBehavior.Cascade
@@ -942,13 +942,14 @@ private void GenerateSequence(ISequence sequence, IndentedStringBuilder sb)
 
         private static string GenerateLambdaToKey(
             IReadOnlyList<IProperty> properties,
-            string lambdaIdentifier)
+            string lambdaIdentifier,
+            Func<string, string> nameTransform)
         {
             return properties.Count <= 0
                 ? ""
                 : properties.Count == 1
-                ? $"{lambdaIdentifier}.{properties[0].Name}"
-                : $"new {{ {string.Join(", ", properties.Select(p => lambdaIdentifier + "." + p.Name))} }}";
+                ? $"{lambdaIdentifier}.{nameTransform(properties[0].Name)}"
+                : $"new {{ {string.Join(", ", properties.Select(p => lambdaIdentifier + "." + nameTransform(p.Name)))} }}";
         }
 
         private static void RemoveAnnotation(ref List<IAnnotation> annotations, string annotationName)

src/EntityFrameworkCore.Scaffolding.Handlebars/HbsEntityTypeTransformationService.cs

@@ -81,6 +81,17 @@ public string TransformPropertyName(string propertyName)
             return PropertyTransformer?.Invoke(propTypeInfo)?.PropertyName ?? propertyName;
         }
 
+        /// <summary>
+        /// Transform single navigation property name.
+        /// </summary>
+        /// <param name="propertyName">Property name.</param>
+        /// <returns>Transformed property name.</returns>
+        public string TransformNavPropertyName(string propertyName)
+        {
+            var propTypeInfo = new EntityPropertyInfo { PropertyName = propertyName };
+            return NavPropertyTransformer?.Invoke(propTypeInfo)?.PropertyName ?? propertyName;
+        }
+
         /// <summary>
         /// Transform entity type constructor.
         /// </summary>

src/EntityFrameworkCore.Scaffolding.Handlebars/IEntityTypeTransformationService.cs

@@ -28,6 +28,13 @@ public interface IEntityTypeTransformationService
         /// <returns>Transformed property name.</returns>
         string TransformPropertyName(string propertyName);
 
+        /// <summary>
+        /// Transform single navigation property name.
+        /// </summary>
+        /// <param name="propertyName">Property name.</param>
+        /// <returns>Transformed property name.</returns>
+        string TransformNavPropertyName(string propertyName);
+
         /// <summary>
         /// Transform entity type constructor.
         /// </summary>