Add option to exclude relationships

Author: DavidBoone

src/EntityFrameworkCore.Generator.Core/ModelGenerator.cs

@@ -311,7 +311,7 @@ private void CreateProperties(Entity entity, DatabaseTable tableSchema)
 
     private void CreateRelationships(EntityContext entityContext, Entity entity, DatabaseTable tableSchema)
     {
-        foreach (var foreignKey in tableSchema.ForeignKeys)
+        foreach (var foreignKey in tableSchema.ForeignKeys.OrderBy(fk => fk.Name))
         {
             // skip relationship if principal table is ignored
             if (IsIgnored(foreignKey.PrincipalTable, _options.Database.Exclude.Tables))
@@ -320,6 +320,12 @@ private void CreateRelationships(EntityContext entityContext, Entity entity, Dat
                 continue;
             }
 
+            if (IsIgnored(foreignKey, _options.Database.Exclude.Relationships))
+            {
+                _logger.LogDebug("  Skipping Relationship : {name}", foreignKey.Name);
+                continue;
+            }
+
             CreateRelationship(entityContext, entity, foreignKey);
         }
 
@@ -748,6 +754,16 @@ private static bool IsIgnored(DatabaseColumn column, IEnumerable<MatchOptions> e
         return IsIgnored(name, excludeExpressions, includeExpressions);
     }
 
+    private static bool IsIgnored(DatabaseForeignKey relationship, IEnumerable<MatchOptions> exclude)
+    {
+        var table = relationship.Table;
+        var name = $"{table.Schema}.{table.Name}.{relationship.Name}";
+        var includeExpressions = Enumerable.Empty<MatchOptions>();
+        var excludeExpressions = exclude ?? [];
+
+        return IsIgnored(name, excludeExpressions, includeExpressions);
+    }
+
     private static bool IsIgnored<TOption>(Property property, TOption options, SharedModelOptions sharedOptions)
         where TOption : ModelOptionsBase
     {

src/EntityFrameworkCore.Generator.Core/OptionMapper.cs

@@ -216,6 +216,12 @@ private static void MapDatabaseMatch(DatabaseMatchOptions option, DatabaseMatchM
             var prefix = OptionsBase.AppendPrefix(option.Prefix, $"Column{option.Columns?.Count:0000}");
             return MapMatch(option.Variables, match, prefix);
         });
+
+        MapList(option.Relationships, match.Relationships, (match) =>
+        {
+            var prefix = OptionsBase.AppendPrefix(option.Prefix, $"Relationship{option.Relationships?.Count:0000}");
+            return MapMatch(option.Variables, match, prefix);
+        });
     }
 
     private static void MapList<T>(IList<T> targetList, IList<T>? sourceList)

src/EntityFrameworkCore.Generator.Core/Options/DatabaseMatchOptions.cs

@@ -17,6 +17,7 @@ public DatabaseMatchOptions(VariableDictionary variables, string? prefix)
     {
         Tables = [];
         Columns = [];
+        Relationships = [];
     }
 
     /// <summary>
@@ -34,4 +35,12 @@ public DatabaseMatchOptions(VariableDictionary variables, string? prefix)
     /// The list of regular expression of columns to ignore.
     /// </value>
     public List<MatchOptions> Columns { get; set; }
+
+    /// <summary>
+    /// Gets or sets a list of regular expression of relationships to ignore.
+    /// </summary>
+    /// <value>
+    /// The list of regular expression of relationships to ignore.
+    /// </value>
+    public List<MatchOptions> Relationships { get; set; }
 }

src/EntityFrameworkCore.Generator.Core/Serialization/DatabaseMatchModel.cs

@@ -20,4 +20,12 @@ public class DatabaseMatchModel
     /// The list of regular expression of columns to ignore.
     /// </value>
     public List<MatchModel>? Columns { get; set; }
+
+    /// <summary>
+    /// Gets or sets a list of regular expression of relationships to ignore.
+    /// </summary>
+    /// <value>
+    /// The list of regular expression of relationships to ignore.
+    /// </value>
+    public List<MatchModel>? Relationships { get; set; }
 }