cyf
61 lines
2.2 KiB
C#
61 lines
2.2 KiB
C#
using System;
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using System.Collections;
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using System.Data;
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using System.Text;
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using Zhaizj.Framework.Data;
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namespace Zhaizj.Framework.ORM.Operation {
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internal class FindRelationOperation {
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private static readonly ILog logger = LogManager.GetLogger( typeof( FindRelationOperation ) );
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public static IList FindDataOther( Type throughType, Type t, String order, int id ) {
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// 1029
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ObjectInfo state = new ObjectInfo( throughType );
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String relationPropertyName = state.EntityInfo.GetRelationPropertyName( t );
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EntityPropertyInfo info = state.EntityInfo.FindRelationProperty( t );
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state.Order = order;
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state.include( info.Name );
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return ObjectDB.Find( state, relationPropertyName + ".Id=" + id ).listChildren( info.Name );
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}
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public static String GetSameTypeIds( Type throughType, Type t, int id ) {
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// 1029
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ObjectInfo state = new ObjectInfo( throughType );
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String relationPropertyName = state.EntityInfo.GetRelationPropertyName( t );
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EntityPropertyInfo info = state.EntityInfo.FindRelationProperty( t );
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String ids = ObjectDB.Find(state, relationPropertyName + ".Id=" + id ).get( info.Name + ".Id" );
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EntityPropertyInfo property = state.EntityInfo.GetProperty( relationPropertyName );
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String sql = String.Format( "select distinct {0} from {1} where {2} in ({3}) and {0}<>{4}", property.ColumnName, state.EntityInfo.TableName, info.ColumnName, ids, id );
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IDbCommand command = DataFactory.GetCommand( sql, DbContext.getConnection( state.EntityInfo ) );
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IDataReader rd = null;
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StringBuilder builder = new StringBuilder();
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try {
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rd = command.ExecuteReader();
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while (rd.Read()) {
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builder.Append( rd[0] );
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builder.Append( "," );
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}
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}
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catch (Exception exception) {
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logger.Error( exception.Message );
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throw exception;
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}
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finally {
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OrmHelper.CloseDataReader( rd );
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}
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return builder.ToString().TrimEnd( ',' );
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}
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}
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}
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