示例#1
0
 /// <summary>
 /// Adds new <see cref="ForeignKey"/> to <see cref="ForeignKeys"/> collection.
 /// </summary>
 /// <param name="constraint">Constraint to add.</param>
 public void Add(ForeignKey constraint)
 {
     this.ForeignKeys.Add(constraint);
 }
示例#2
0
文件: Table.cs 项目: zhonli/odata.net
 /// <summary>
 /// Adds new <see cref="ForeignKey"/> to <see cref="ForeignKeys"/> collection.
 /// </summary>
 /// <param name="constraint">Constraint to add.</param>
 public void Add(ForeignKey constraint)
 {
     this.ForeignKeys.Add(constraint);
 }
        private void ConvertAssociationSetsToForeignKeys(EntityContainer container, Dictionary<EntitySet, Table> entitySetToTable)
        {
            foreach (AssociationSet associationSet in container.AssociationSets)
            {
                var assoc = associationSet.AssociationType;
                var referentialConstraint = assoc.ReferentialConstraint;

                ExceptionUtilities.Assert(referentialConstraint != null, "S-space associations must have RI constraints");

                var dependentSet = associationSet.Ends.Single(c => c.AssociationEnd == referentialConstraint.DependentAssociationEnd).EntitySet;
                var principalSet = associationSet.Ends.Single(c => c.AssociationEnd == referentialConstraint.PrincipalAssociationEnd).EntitySet;

                var principalTable = entitySetToTable[principalSet];
                var dependentTable = entitySetToTable[dependentSet];
                var fk = new ForeignKey(container.Name, associationSet.Name);
                fk.Target = principalTable;
                fk.Schema = dependentTable.Schema;
                foreach (var prop in referentialConstraint.DependentProperties)
                {
                    var dependentColumn = dependentTable.Columns.Single(c => c.Name == prop.Name);
                    fk.SourceColumns.Add(dependentColumn);
                }

                foreach (var prop in referentialConstraint.PrincipalProperties)
                {
                    var principalColumn = principalTable.Columns.Single(c => c.Name == prop.Name);
                    fk.TargetColumns.Add(principalColumn);
                }

                dependentTable.ForeignKeys.Add(fk);
            }
        }