cyf
97 lines
3.1 KiB
C#
97 lines
3.1 KiB
C#
using System;
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using System.Data;
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using Zhaizj.Framework.Data;
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namespace Zhaizj.Framework.ORM {
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internal class OrmHelper {
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internal static void CloseDataReader( IDataReader rd ) {
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if (rd == null) return;
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if (rd.IsClosed) return;
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rd.Close();
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}
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internal static void SetParameters( IDbCommand cmd, String action, IEntity obj, EntityInfo entityInfo ) {
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for (int i = 0; i < entityInfo.SavedPropertyList.Count; i++) {
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EntityPropertyInfo info = entityInfo.SavedPropertyList[i];
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if (isContinue( action, info, entityInfo )) continue;
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Object paramVal = obj.get( info.Name );
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if (paramVal == null && info.DefaultAttribute != null) {
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paramVal = info.DefaultAttribute.Value;
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}
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if (paramVal == null) {
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setDefaultValue( cmd, info, entityInfo );
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}
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else if (info.Type.IsSubclassOf( typeof( IEntity ) ) || MappingClass.Instance.ClassList.Contains( info.Type.FullName )) {
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setEntityId( cmd, info, paramVal );
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}
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else {
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paramVal = DataFactory.SetParameter( cmd, info.ColumnName, paramVal );
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obj.set( info.Name, paramVal );
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}
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}
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}
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private static Boolean isContinue( String action, EntityPropertyInfo info, EntityInfo entityInfo ) {
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if (info.SaveToDB == false) return true;
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if (info.IsList) return true;
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if (info.Name.Equals( "Id" )) {
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if (action.Equals( "update" )) return true;
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// Ôö¼ÓʵÌå¼üÀàÐÍʶ±ð
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if (/**/DbConfig.Instance.IsAutoId && action.Equals("insert")
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&& entityInfo.Parent == null
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)
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return true;
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}
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return false;
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}
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private static void setDefaultValue( IDbCommand cmd, EntityPropertyInfo info, EntityInfo entityInfo ) {
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if (MappingClass.Instance.ClassList.Contains( info.Type.FullName )) {
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DataFactory.SetParameter( cmd, info.ColumnName, -1 );
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}
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else if (info.Type == typeof( DateTime )) {
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if (entityInfo.DbType == DatabaseType.Access) {
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DataFactory.SetParameter( cmd, info.ColumnName, DateTime.Now.ToString() );
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}
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else {
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DataFactory.SetParameter( cmd, info.ColumnName, DateTime.Now );
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}
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}
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else {
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DataFactory.SetParameter( cmd, info.ColumnName, "" );
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}
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}
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private static void setEntityId( IDbCommand cmd, EntityPropertyInfo info, Object paramVal ) {
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int id = ((IEntity)paramVal).Id;
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DataFactory.SetParameter( cmd, info.ColumnName, id );
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}
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public static Boolean IsEntityBase( Type t ) {
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return t.FullName.IndexOf( "Zhaizj.Framework.ObjectBase" ) >= 0;
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}
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}
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}
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