/// <summary>
/// 构造器
/// </summary>
/// <param name="tableStructure">表结构字段定义类</param>
public GenerateSqlCmdByTableFields(Type tableStructure,string sDbType)
{
object[] attrClass = tableStructure.GetCustomAttributes(typeof(ORM_ObjectClassAttribute), false);
if (attrClass != null && attrClass.Length == 0) throw new Exception("ORM_ObjectClassAttribute未定义!");
ORM_ObjectClassAttribute classAttribute = attrClass[0] as ORM_ObjectClassAttribute;
_IsSummary = classAttribute.IsSummaryTable;
//生成一个新的对象
object obj = tableStructure.Assembly.CreateInstance(tableStructure.FullName);
//获取类中的所有属性
FieldInfo[] infosSelf = tableStructure.GetFields();
FieldInfo[] infosBase = tableStructure.BaseType.GetFields();
FieldInfo[] infos = null;
if (infosBase.Length == 0)
infos = infosSelf;
else
{
//相加两数组
int iLength = infosBase.Length;
Array.Resize<FieldInfo>(ref infosBase, infosBase.Length + infosSelf.Length);
infosSelf.CopyTo(infosBase, iLength);
infos = infosBase;
}
ArrayList fieldArr = new ArrayList();
if (sDbType == DbAcessTyp.SQLServer)
{
_cmdInsert = new SqlCommand();
_cmdUpdate = new SqlCommand();
_cmdDelete = new SqlCommand();
}
else
{
_cmdInsert = new OracleCommand();
_cmdUpdate = new OracleCommand();
_cmdDelete = new OracleCommand();
}
_cmdInsert.CommandType = CommandType.Text;
_cmdUpdate.CommandType = CommandType.Text;
_cmdDelete.CommandType = CommandType.Text;
foreach (FieldInfo info in infos)
{
object[] attrField = info.GetCustomAttributes(typeof(ORM_FieldAttribute), false);
string fieldName = info.GetValue(obj).ToString().ToUpper();
if (attrField != null && attrField.Length > 0)
{
ORM_FieldAttribute fieldAttr = attrField[0] as ORM_FieldAttribute;
//用作构造sql语句中的参数
if (fieldAttr.IsAddOrUpdate)
{
//取得最多的参数，与生成的sql语句作匹配,构造SQL参数语句
if (!_cmdInsert.Parameters.Contains("@" + fieldName))
{
if(sDbType==DbAcessTyp.Oracle)
{
OracleParameter para = new OracleParameter( fieldName, DataConverter.SqlTypeToString(fieldAttr.Type));
para.SourceColumn = fieldName;
_cmdInsert.Parameters.Add(para);
}
else
{
SqlParameter spara = new SqlParameter("@" + fieldName, DataConverter.SqlTypeToString(fieldAttr.Type));
spara.SourceColumn = fieldName;
_cmdInsert.Parameters.Add(spara);
}
}
if (!_cmdUpdate.Parameters.Contains("@" + fieldName))
if (sDbType == DbAcessTyp.Oracle)
{
OracleParameter para = new OracleParameter( fieldName, DataConverter.SqlTypeToString(fieldAttr.Type));
para.SourceColumn = fieldName;
_cmdUpdate.Parameters.Add(para);
}
else
{
SqlParameter spara = new SqlParameter("@" + fieldName, DataConverter.SqlTypeToString(fieldAttr.Type));
spara.SourceColumn = fieldName;
_cmdUpdate.Parameters.Add(spara);
}
ColoumnProperty colProper = new ColoumnProperty(fieldName, fieldAttr.IsPrimaryKey ? true : false);
fieldArr.Add(colProper);
}
if (fieldAttr.IsPrimaryKey)
{
if (!_cmdUpdate.Parameters.Contains("@" + fieldName))
if (sDbType == DbAcessTyp.Oracle)
{
OracleParameter para = new OracleParameter( fieldName, DataConverter.SqlTypeToString(fieldAttr.Type));
para.SourceColumn = fieldName;
_cmdUpdate.Parameters.Add(para);
}
else
{
SqlParameter spara = new SqlParameter("@" + fieldName, DataConverter.SqlTypeToString(fieldAttr.Type));
spara.SourceColumn = fieldName;
_cmdUpdate.Parameters.Add(spara);
}
if (!_cmdDelete.Parameters.Contains("@" + fieldName))
if (sDbType == DbAcessTyp.Oracle)
{
OracleParameter para = new OracleParameter( fieldName, DataConverter.SqlTypeToString(fieldAttr.Type));
para.SourceColumn = fieldName;
_cmdDelete.Parameters.Add(para);
}
else
{
SqlParameter spara = new SqlParameter("@" + fieldName, DataConverter.SqlTypeToString(fieldAttr.Type));
spara.SourceColumn = fieldName;
_cmdDelete.Parameters.Add(spara);
}
_PrimaryFieldName = fieldName;
}
if (fieldAttr.IsDocFieldName) _DocNoFieldName = fieldName;
if (fieldAttr.IsForeignKey) _ForeignFieldName = fieldName;
}
}
_sqlInsert = GernerateInsertSql(classAttribute.TableName, classAttribute.PrimaryKey, fieldArr, sDbType);
_sqlUpdate = GernerateUpdateSql(classAttribute.TableName, classAttribute.PrimaryKey, fieldArr, sDbType);
_sqlDelete = GernerateDeleteSql(classAttribute.TableName, classAttribute.PrimaryKey, fieldArr, sDbType);
}
/// <summary>
/// 构造器
/// </summary>
/// <param name="tableStructure">表结构字段定义类</param>
public GenerateSqlCmdByTableFields(Type tableStructure, string sDbType)
{
object[] attrClass = tableStructure.GetCustomAttributes(typeof(ORM_ObjectClassAttribute), false);
if (attrClass != null && attrClass.Length == 0)
{
throw new Exception("ORM_ObjectClassAttribute未定义!");
}
ORM_ObjectClassAttribute classAttribute = attrClass[0] as ORM_ObjectClassAttribute;
_IsSummary = classAttribute.IsSummaryTable;
//生成一个新的对象
object obj = tableStructure.Assembly.CreateInstance(tableStructure.FullName);
//获取类中的所有属性
FieldInfo[] infosSelf = tableStructure.GetFields();
FieldInfo[] infosBase = tableStructure.BaseType.GetFields();
FieldInfo[] infos = null;
if (infosBase.Length == 0)
{
infos = infosSelf;
}
else
{
//相加两数组
int iLength = infosBase.Length;
Array.Resize <FieldInfo>(ref infosBase, infosBase.Length + infosSelf.Length);
infosSelf.CopyTo(infosBase, iLength);
infos = infosBase;
}
ArrayList fieldArr = new ArrayList();
if (sDbType == DbAcessTyp.SQLServer)
{
_cmdInsert = new SqlCommand();
_cmdUpdate = new SqlCommand();
_cmdDelete = new SqlCommand();
}
else
{
_cmdInsert = new OracleCommand();
_cmdUpdate = new OracleCommand();
_cmdDelete = new OracleCommand();
}
_cmdInsert.CommandType = CommandType.Text;
_cmdUpdate.CommandType = CommandType.Text;
_cmdDelete.CommandType = CommandType.Text;
foreach (FieldInfo info in infos)
{
object[] attrField = info.GetCustomAttributes(typeof(ORM_FieldAttribute), false);
string fieldName = info.GetValue(obj).ToString().ToUpper();
if (attrField != null && attrField.Length > 0)
{
ORM_FieldAttribute fieldAttr = attrField[0] as ORM_FieldAttribute;
//用作构造sql语句中的参数
if (fieldAttr.IsAddOrUpdate)
{
//取得最多的参数，与生成的sql语句作匹配,构造SQL参数语句
if (!_cmdInsert.Parameters.Contains("@" + fieldName))
{
if (sDbType == DbAcessTyp.Oracle)
{
OracleParameter para = new OracleParameter(fieldName, DataConverter.SqlTypeToString(fieldAttr.Type));
para.SourceColumn = fieldName;
_cmdInsert.Parameters.Add(para);
}
else
{
SqlParameter spara = new SqlParameter("@" + fieldName, DataConverter.SqlTypeToString(fieldAttr.Type));
spara.SourceColumn = fieldName;
_cmdInsert.Parameters.Add(spara);
}
}
if (!_cmdUpdate.Parameters.Contains("@" + fieldName))
{
if (sDbType == DbAcessTyp.Oracle)
{
OracleParameter para = new OracleParameter(fieldName, DataConverter.SqlTypeToString(fieldAttr.Type));
para.SourceColumn = fieldName;
_cmdUpdate.Parameters.Add(para);
}
else
{
SqlParameter spara = new SqlParameter("@" + fieldName, DataConverter.SqlTypeToString(fieldAttr.Type));
spara.SourceColumn = fieldName;
_cmdUpdate.Parameters.Add(spara);
}
}
ColoumnProperty colProper = new ColoumnProperty(fieldName, fieldAttr.IsPrimaryKey ? true : false);
fieldArr.Add(colProper);
}
if (fieldAttr.IsPrimaryKey)
{
if (!_cmdUpdate.Parameters.Contains("@" + fieldName))
{
if (sDbType == DbAcessTyp.Oracle)
{
OracleParameter para = new OracleParameter(fieldName, DataConverter.SqlTypeToString(fieldAttr.Type));
para.SourceColumn = fieldName;
_cmdUpdate.Parameters.Add(para);
}
else
{
SqlParameter spara = new SqlParameter("@" + fieldName, DataConverter.SqlTypeToString(fieldAttr.Type));
spara.SourceColumn = fieldName;
_cmdUpdate.Parameters.Add(spara);
}
}
if (!_cmdDelete.Parameters.Contains("@" + fieldName))
{
if (sDbType == DbAcessTyp.Oracle)
{
OracleParameter para = new OracleParameter(fieldName, DataConverter.SqlTypeToString(fieldAttr.Type));
para.SourceColumn = fieldName;
_cmdDelete.Parameters.Add(para);
}
else
{
SqlParameter spara = new SqlParameter("@" + fieldName, DataConverter.SqlTypeToString(fieldAttr.Type));
spara.SourceColumn = fieldName;
_cmdDelete.Parameters.Add(spara);
}
}
_PrimaryFieldName = fieldName;
}
if (fieldAttr.IsDocFieldName)
{
_DocNoFieldName = fieldName;
}
if (fieldAttr.IsForeignKey)
{
_ForeignFieldName = fieldName;
}
}
}
_sqlInsert = GernerateInsertSql(classAttribute.TableName, classAttribute.PrimaryKey, fieldArr, sDbType);
_sqlUpdate = GernerateUpdateSql(classAttribute.TableName, classAttribute.PrimaryKey, fieldArr, sDbType);
_sqlDelete = GernerateDeleteSql(classAttribute.TableName, classAttribute.PrimaryKey, fieldArr, sDbType);
}