/// <summary>
/// 访问表示方法调用的节点
/// </summary>
/// <param name="node">方法调用节点</param>
/// <returns></returns>
public virtual Expression VisitMethodCall(MethodCallExpression node)
{
Type type = node.Method.ReflectedType != null ? node.Method.ReflectedType : node.Method.DeclaringType;
string methodName = string.Empty;
if (type == typeof(SqlMethod) || type == typeof(Guid))
{
methodName = "VisitSQL";
}
else if (type == typeof(string) || node.Method.Name == "ToString")
{
methodName = "VisitSTR";
}
else if (type == typeof(Enumerable) || typeof(IEnumerable).IsAssignableFrom(type))
{
methodName = "VisitENM";
}
if (_typeRuntime == null)
{
_typeRuntime = new VistorTypeRuntimeInfo(this.GetType());
}
MemberInvokerBase invoker = _typeRuntime.GetInvoker(methodName + node.Method.Name);
if (invoker != null)
{
object exp = invoker.Invoke(this, new object[] { node });
return(exp as Expression);
}
throw new XFrameworkException("{0}.{1} is not supported.", node.Method.DeclaringType, node.Method.Name);
}
// 创建 DELETE 命令
protected override DbCommandDefinition ParseDeleteCommand <T>(DbQueryableInfo_Delete <T> dQuery, List <IDbDataParameter> parameters = null)
{
TypeRuntimeInfo typeRuntime = TypeRuntimeInfoCache.GetRuntimeInfo <T>();
ISqlBuilder builder = this.CreateSqlBuilder(parameters);
bool useKey = false;
builder.Append("DELETE FROM ");
builder.AppendMember(typeRuntime.TableName, !typeRuntime.IsTemporary);
builder.Append(" t0 ");
if (dQuery.Entity != null)
{
object entity = dQuery.Entity;
builder.AppendNewLine();
builder.Append("WHERE ");
foreach (var kv in typeRuntime.Invokers)
{
MemberInvokerBase invoker = kv.Value;
var column = invoker.Column;
if (column != null && column.IsKey)
{
useKey = true;
var value = invoker.Invoke(entity);
var seg = builder.GetSqlValue(value, column);
builder.AppendMember("t0", invoker.Member.Name);
builder.Append(" = ");
builder.Append(seg);
builder.Append(" AND ");
}
;
}
builder.Length -= 5;
if (!useKey)
{
throw new XFrameworkException("Delete<T>(T value) require T must have key column.");
}
}
else if (dQuery.SelectInfo != null)
{
TableAliasCache aliases = this.PrepareAlias <T>(dQuery.SelectInfo);
var cmd2 = new OracleDbCommandDefinition_Delete(this, aliases, builder.Parameters);
cmd2.HaveListNavigation = dQuery.SelectInfo.HaveListNavigation;
var visitor0 = new OracleJoinExpressionVisitor(this, aliases, dQuery.SelectInfo.Join, dQuery.SelectInfo.Where);
visitor0.Write(cmd2);
var visitor1 = new OracleWhereExpressionVisitor(this, aliases, dQuery.SelectInfo.Where);
visitor1.Write(cmd2.WhereFragment);
cmd2.AddNavMembers(visitor1.NavMembers);
builder.Append(cmd2.CommandText);
}
builder.Append(';');
return(new DbCommandDefinition(builder.ToString(), builder.Parameters, System.Data.CommandType.Text));
}
// 获取实例的属性值
private static IDictionary <ValidationContext, object> GetPropertyValues(object instance, ValidationContext context)
{
IDictionary <ValidationContext, object> result = new Dictionary <ValidationContext, object>();
TypeRuntimeInfo typeRuntime = TypeRuntimeInfoCache.GetRuntimeInfo(instance.GetType());
foreach (var kv in typeRuntime.Invokers)
{
MemberInvokerBase invoker = kv.Value;
if (invoker.MemberType == System.Reflection.MemberTypes.Property)
{
ValidationContext context2 = XFrameworkValidator.CreateValidationContext(instance, context);
context2.MemberName = invoker.Member.Name;
if (XFrameworkValidator._store.GetPropertyValidationAttributes(context2).Any <ValidationAttribute>())
{
result.Add(context2, invoker.Invoke(instance));
}
}
}
return(result);
}
/// <summary>
/// 访问表示字段或者属性的属性的节点 a.Name.Length
/// </summary>
public virtual Expression VisitMemberMember(MemberExpression node)
{
Type type = node.Expression.Type;
string methodName = string.Empty;
if (type == typeof(string))
{
methodName = "VisitSTR";
}
if (_typeRuntime == null)
{
_typeRuntime = new VistorTypeRuntimeInfo(this.GetType());
}
MemberInvokerBase invoker = _typeRuntime.GetInvoker(methodName + node.Member.Name);
if (invoker != null)
{
object exp = invoker.Invoke(this, new object[] { node });
return(exp as Expression);
}
throw new XFrameworkException("{0}.{1} is not supported.", node.Member.DeclaringType, node.Member.Name);
}
// 创建 UPDATE 命令
protected override Command ParseUpdateCommand <T>(DbQueryableInfo_Update <T> uQueryInfo, ParserToken token)
{
ISqlBuilder builder = this.CreateSqlBuilder(token);
var typeRuntime = TypeRuntimeInfoCache.GetRuntimeInfo <T>();
builder.Append("UPDATE t0 SET");
builder.AppendNewLine();
if (uQueryInfo.Entity != null)
{
object entity = uQueryInfo.Entity;
ISqlBuilder whereBuilder = this.CreateSqlBuilder(token);
bool useKey = false;
int length = 0;
foreach (var kv in typeRuntime.Invokers)
{
MemberInvokerBase invoker = kv.Value;
var column = invoker.Column;
if (column != null && column.IsIdentity)
{
goto gotoLabel; // fix issue# 自增列同时又是主键
}
if (column != null && column.NoMapped)
{
continue;
}
if (invoker.Column != null && column.DbType is SqlDbType && (SqlDbType)column.DbType == SqlDbType.Timestamp)
{
continue; // 行版本号
}
if (invoker.ForeignKey != null)
{
continue;
}
if (invoker.Member.MemberType == System.Reflection.MemberTypes.Method)
{
continue;
}
builder.AppendMember("t0", invoker.Member.Name);
builder.Append(" = ");
gotoLabel:
var value = invoker.Invoke(entity);
var seg = builder.GetSqlValueWidthDefault(value, column);
if (column == null || !column.IsIdentity)
{
builder.Append(seg);
length = builder.Length;
builder.Append(',');
builder.AppendNewLine();
}
if (column != null && column.IsKey)
{
useKey = true;
whereBuilder.AppendMember("t0", invoker.Member.Name);
whereBuilder.Append(" = ");
whereBuilder.Append(seg);
whereBuilder.Append(" AND ");
}
}
if (!useKey)
{
throw new XFrameworkException("Update<T>(T value) require T must have key column.");
}
builder.Length = length;
whereBuilder.Length -= 5;
builder.AppendNewLine();
builder.Append("FROM ");
builder.AppendMember(typeRuntime.TableName, !typeRuntime.IsTemporary);
builder.Append(" t0");
builder.AppendNewLine();
builder.Append("WHERE ");
builder.Append(whereBuilder);
}
else if (uQueryInfo.Expression != null)
{
TableAliasCache aliases = this.PrepareAlias <T>(uQueryInfo.SelectInfo, token);
ExpressionVisitorBase visitor = null;
visitor = new UpdateExpressionVisitor(this, aliases, uQueryInfo.Expression);
visitor.Write(builder);
builder.AppendNewLine();
builder.Append("FROM ");
builder.AppendMember(typeRuntime.TableName, !typeRuntime.IsTemporary);
builder.AppendAs("t0");
var cmd2 = new SelectCommand(this, aliases, token)
{
HasManyNavigation = uQueryInfo.SelectInfo.HasManyNavigation
};
visitor = new JoinExpressionVisitor(this, aliases, uQueryInfo.SelectInfo.Joins);
visitor.Write(cmd2.JoinFragment);
visitor = new WhereExpressionVisitor(this, aliases, uQueryInfo.SelectInfo.WhereExpression);
visitor.Write(cmd2.WhereFragment);
cmd2.AddNavMembers(visitor.NavMembers);
builder.Append(cmd2.CommandText);
}
return(new Command(builder.ToString(), builder.Token != null ? builder.Token.Parameters : null, System.Data.CommandType.Text));
}
// 创建 DELETE 命令
protected override Command ParseDeleteCommand <T>(DbQueryableInfo_Delete <T> dQueryInfo, ParserToken token)
{
TypeRuntimeInfo typeRuntime = TypeRuntimeInfoCache.GetRuntimeInfo <T>();
ISqlBuilder builder = this.CreateSqlBuilder(token);
bool useKey = false;
builder.Append("DELETE t0 FROM ");
builder.AppendMember(typeRuntime.TableName, !typeRuntime.IsTemporary);
builder.Append(" t0 ");
if (dQueryInfo.Entity != null)
{
object entity = dQueryInfo.Entity;
builder.AppendNewLine();
builder.Append("WHERE ");
foreach (var kv in typeRuntime.Invokers)
{
MemberInvokerBase invoker = kv.Value;
var column = invoker.Column;
if (column != null && column.IsKey)
{
useKey = true;
var value = invoker.Invoke(entity);
var seg = builder.GetSqlValue(value, column);
builder.AppendMember("t0", invoker.Member.Name);
builder.Append(" = ");
builder.Append(seg);
builder.Append(" AND ");
}
;
}
builder.Length -= 5;
if (!useKey)
{
throw new XFrameworkException("Delete<T>(T value) require T must have key column.");
}
}
else if (dQueryInfo.SelectInfo != null)
{
IDbQueryable dbQueryable = dQueryInfo.SourceQuery;
TableAliasCache aliases = this.PrepareAlias <T>(dQueryInfo.SelectInfo, token);
var cmd2 = new SelectCommand(this, aliases, token)
{
HasManyNavigation = dQueryInfo.SelectInfo.HasManyNavigation
};
ExpressionVisitorBase visitor = new JoinExpressionVisitor(this, aliases, dQueryInfo.SelectInfo.Joins);
visitor.Write(cmd2.JoinFragment);
visitor = new WhereExpressionVisitor(this, aliases, dQueryInfo.SelectInfo.WhereExpression);
visitor.Write(cmd2.WhereFragment);
cmd2.AddNavMembers(visitor.NavMembers);
builder.Append(cmd2.CommandText);
}
return(new Command(builder.ToString(), builder.Token != null ? builder.Token.Parameters : null, System.Data.CommandType.Text));
}
// 创建 INSRT 命令
protected override Command ParseInsertCommand <T>(DbQueryableInfo_Insert <T> nQueryInfo, ParserToken token)
{
ISqlBuilder builder = this.CreateSqlBuilder(token);
TypeRuntimeInfo typeRuntime = TypeRuntimeInfoCache.GetRuntimeInfo <T>();
TableAliasCache aliases = new TableAliasCache();
if (nQueryInfo.Entity != null)
{
object entity = nQueryInfo.Entity;
ISqlBuilder columnsBuilder = this.CreateSqlBuilder(token);
ISqlBuilder valuesBuilder = this.CreateSqlBuilder(token);
// 指定插入列
Dictionary <string, MemberInvokerBase> invokers = typeRuntime.Invokers;
if (nQueryInfo.EntityColumns != null && nQueryInfo.EntityColumns.Count > 0)
{
invokers = new Dictionary <string, MemberInvokerBase>();
for (int i = 0; i < nQueryInfo.EntityColumns.Count; i++)
{
Expression curExpr = nQueryInfo.EntityColumns[i];
if (curExpr.NodeType == ExpressionType.Lambda)
{
curExpr = (curExpr as LambdaExpression).Body.ReduceUnary();
}
if (curExpr.NodeType != ExpressionType.MemberAccess)
{
throw new XFrameworkException("ERR {0}: Only support MemberAccess expression.", nQueryInfo.EntityColumns[i]);
}
MemberExpression member = curExpr as MemberExpression;
string name = member.Member.Name;
invokers[name] = typeRuntime.Invokers[name];
}
}
foreach (var kv in invokers)
{
MemberInvokerBase invoker = kv.Value;
var column = invoker.Column;
if (column != null && column.NoMapped)
{
continue;
}
if (invoker.ForeignKey != null)
{
continue;
}
if (invoker.Column != null && column.DbType is SqlDbType && (SqlDbType)column.DbType == SqlDbType.Timestamp)
{
continue; // 行版本号
}
if (invoker.Member.MemberType == System.Reflection.MemberTypes.Method)
{
continue;
}
if (invoker != nQueryInfo.AutoIncrement)
{
columnsBuilder.AppendMember(invoker.Member.Name);
columnsBuilder.Append(',');
var value = invoker.Invoke(entity);
string seg = builder.GetSqlValueWidthDefault(value, column);
valuesBuilder.Append(seg);
valuesBuilder.Append(',');
}
}
columnsBuilder.Length -= 1;
valuesBuilder.Length -= 1;
if (nQueryInfo.Bulk == null || !nQueryInfo.Bulk.OnlyValue)
{
builder.Append("INSERT INTO ");
builder.AppendMember(typeRuntime.TableName, !typeRuntime.IsTemporary);
builder.Append('(');
builder.Append(columnsBuilder);
builder.Append(')');
builder.AppendNewLine();
builder.AppendNewTab();
builder.Append("VALUES");
}
if (nQueryInfo.Bulk != null && nQueryInfo.Bulk.OnlyValue)
{
builder.AppendNewTab();
}
builder.Append('(');
builder.Append(valuesBuilder);
builder.Append(')');
if (nQueryInfo.Bulk != null && !nQueryInfo.Bulk.IsEndPos)
{
builder.Append(",");
builder.AppendNewLine();
}
if (nQueryInfo.Bulk == null && nQueryInfo.AutoIncrement != null)
{
builder.AppendNewLine();
builder.Append("SELECT SCOPE_IDENTITY()");
builder.AppendAs(Constant.AUTOINCREMENTNAME);
}
}
else if (nQueryInfo.SelectInfo != null)
{
builder.Append("INSERT INTO ");
builder.AppendMember(typeRuntime.TableName, !typeRuntime.IsTemporary);
builder.Append('(');
int i = 0;
SelectCommand cmd2 = this.ParseSelectCommand(nQueryInfo.SelectInfo, 0, true, token) as SelectCommand;
foreach (var kvp in cmd2.Columns)
{
builder.AppendMember(kvp.Key);
if (i < cmd2.Columns.Count - 1)
{
builder.Append(',');
}
i++;
}
builder.Append(')');
builder.AppendNewLine();
builder.Append(cmd2.CommandText);
}
return(new Command(builder.ToString(), builder.Token != null ? builder.Token.Parameters : null, System.Data.CommandType.Text));
}
// 创建 UPDATE 命令
protected override DbCommandDefinition ParseUpdateCommand <T>(DbQueryableInfo_Update <T> uQuery, List <IDbDataParameter> parameters = null)
{
ISqlBuilder builder = this.CreateSqlBuilder(parameters);
var typeRuntime = TypeRuntimeInfoCache.GetRuntimeInfo <T>();
builder.Append("UPDATE ");
builder.AppendMember(typeRuntime.TableName, !typeRuntime.IsTemporary);
builder.Append(" t0 SET");
builder.AppendNewLine();
if (uQuery.Entity != null)
{
object entity = uQuery.Entity;
ISqlBuilder whereBuilder = this.CreateSqlBuilder(builder.Parameters);
bool useKey = false;
int length = 0;
foreach (var kv in typeRuntime.Invokers)
{
MemberInvokerBase invoker = kv.Value;
var column = invoker.Column;
if (column != null && column.IsIdentity)
{
goto gotoLabel; // fix issue# 自增列同时又是主键
}
if (column != null && column.NoMapped)
{
continue;
}
if (invoker.ForeignKey != null)
{
continue;
}
if (invoker.Member.MemberType == System.Reflection.MemberTypes.Method)
{
continue;
}
builder.AppendMember(invoker.Member.Name);
builder.Append(" = ");
gotoLabel:
if (column == null || !column.IsIdentity)
{
var value = invoker.Invoke(entity);
var seg = builder.GetSqlValueWidthDefault(value, column);
builder.Append(seg);
length = builder.Length;
builder.Append(',');
builder.AppendNewLine();
}
if (column != null && column.IsKey)
{
useKey = true;
}
}
if (!useKey)
{
throw new XFrameworkException("Update<T>(T value) require T must have key column.");
}
// ORACLE 需要注意参数顺序问题
int index = -1;
foreach (var kv in typeRuntime.KeyInvokers)
{
MemberInvokerBase invoker = kv.Value;
var column = invoker.Column;
var value = invoker.Invoke(entity);
var seg = builder.GetSqlValueWidthDefault(value, column);
index += 1;
whereBuilder.AppendMember(invoker.Member.Name);
whereBuilder.Append(" = ");
whereBuilder.Append(seg);
if (index < typeRuntime.KeyInvokers.Count - 1)
{
whereBuilder.Append(" AND ");
}
}
builder.Length = length;
builder.AppendNewLine();
builder.Append("WHERE ");
builder.Append(whereBuilder);
}
else if (uQuery.Expression != null)
{
TableAliasCache aliases = this.PrepareAlias <T>(uQuery.SelectInfo);
ExpressionVisitorBase visitor = null;
visitor = new OracleUpdateExpressionVisitor(this, aliases, uQuery.Expression);
visitor.Write(builder);
var cmd2 = new OracleDbCommandDefinition_Delete(this, aliases, builder.Parameters);
cmd2.HaveListNavigation = uQuery.SelectInfo.HaveListNavigation;
var visitor0 = new OracleJoinExpressionVisitor(this, aliases, uQuery.SelectInfo.Join, uQuery.SelectInfo.Where);
visitor0.Write(cmd2);
var visitor1 = new OracleWhereExpressionVisitor(this, aliases, uQuery.SelectInfo.Where);
visitor1.Write(cmd2.WhereFragment);
cmd2.AddNavMembers(visitor1.NavMembers);
builder.Append(cmd2.CommandText);
}
builder.Append(';');
return(new DbCommandDefinition(builder.ToString(), builder.Parameters, System.Data.CommandType.Text));
}
// 创建 INSRT 命令
protected override DbCommandDefinition ParseInsertCommand <T>(DbQueryableInfo_Insert <T> nQuery, List <IDbDataParameter> parameters = null)
{
ISqlBuilder builder = this.CreateSqlBuilder(parameters);
TypeRuntimeInfo typeRuntime = TypeRuntimeInfoCache.GetRuntimeInfo <T>();
TableAliasCache aliases = new TableAliasCache();
bool useSEQ = false;
if (nQuery.Entity != null)
{
// 如果没有Sequence列，使用 INSERT ALL INTO 语法，否则就一条一条逐行写入~~
// 批量 INSERT，自增列不会自动赋值
object entity = nQuery.Entity;
ISqlBuilder columnsBuilder = this.CreateSqlBuilder(builder.Parameters);
ISqlBuilder valuesBuilder = this.CreateSqlBuilder(builder.Parameters);
// 指定插入列
Dictionary <string, MemberInvokerBase> invokers = typeRuntime.Invokers;
if (nQuery.EntityColumns != null && nQuery.EntityColumns.Count > 0)
{
invokers = new Dictionary <string, MemberInvokerBase>();
for (int i = 0; i < nQuery.EntityColumns.Count; i++)
{
Expression curExpr = nQuery.EntityColumns[i];
if (curExpr.NodeType == ExpressionType.Lambda)
{
curExpr = (curExpr as LambdaExpression).Body.ReduceUnary();
}
if (curExpr.NodeType != ExpressionType.MemberAccess)
{
throw new XFrameworkException("Can't read field name from expression {0}", nQuery.EntityColumns[i]);
}
MemberExpression member = curExpr as MemberExpression;
string name = member.Member.Name;
invokers[name] = typeRuntime.Invokers[name];
}
}
// 自增列参数
IDbDataParameter seqParameter = null;
// 自增列标记
ColumnAttribute seqColumn = null;
foreach (var kv in invokers)
{
MemberInvokerBase invoker = kv.Value;
var column = invoker.Column;
if (column != null && column.NoMapped)
{
continue;
}
if (invoker.ForeignKey != null)
{
continue;
}
if (invoker.Member.MemberType == System.Reflection.MemberTypes.Method)
{
continue;
}
columnsBuilder.AppendMember(invoker.Member.Name);
columnsBuilder.Append(',');
if (invoker == nQuery.AutoIncrement)
{
seqColumn = column;
if (nQuery.Bulk == null)
{
// 非批量INSERT，产生一个 OUTPUT 类型的参数
string pName = string.Format("{0}p{1}", this.ParameterPrefix, builder.Parameters.Count);
var database = nQuery.SourceQuery.DbContext.Database;
seqParameter = database.CreateParameter(pName, -1, direction: ParameterDirection.Output);
builder.Parameters.Add(seqParameter);
valuesBuilder.Append(seqParameter.ParameterName);
valuesBuilder.Append(',');
}
else
{
valuesBuilder.Append(((OracleColumnAttribute)column).SEQName);
valuesBuilder.Append(".NEXTVAL");
valuesBuilder.Append(',');
}
}
else
{
var value = invoker.Invoke(entity);
string seg = builder.GetSqlValueWidthDefault(value, column);
valuesBuilder.Append(seg);
valuesBuilder.Append(',');
}
}
columnsBuilder.Length -= 1;
valuesBuilder.Length -= 1;
if (nQuery.Bulk == null)
{
// 非批量INSERT，产生一个 OUTPUT 类型的参数
if (seqParameter != null)
{
seqParameter.Direction = ParameterDirection.Output;
seqParameter.DbType = DbType.Int64;
builder.Append("SELECT ");
builder.Append(((OracleColumnAttribute)seqColumn).SEQName);
builder.Append(".NEXTVAL INTO ");
builder.Append(seqParameter.ParameterName);
builder.Append(" FROM DUAL;");
builder.AppendNewLine();
useSEQ = true;
}
builder.Append("INSERT ");
}
else
{
// 批量 INSERT
if (!nQuery.Bulk.OnlyValue || seqColumn != null)
{
builder.Append("INSERT ");
}
// 如果有自增列则不使用 INSERT ALL INTO 语法
if (!nQuery.Bulk.OnlyValue && seqColumn == null)
{
builder.Append("ALL ");
}
}
builder.Append("INTO ");
builder.AppendMember(typeRuntime.TableName, !typeRuntime.IsTemporary);
builder.Append('(');
builder.Append(columnsBuilder);
builder.Append(')');
builder.AppendNewLine();
builder.AppendNewTab();
builder.Append("VALUES");
builder.Append('(');
builder.Append(valuesBuilder);
builder.Append(')');
if (nQuery.Bulk == null)
{
builder.Append(';');
}
else
{
if (seqColumn != null)
{
if (nQuery.Bulk.IsEndPos)
{
builder.Append(";");
}
else
{
builder.AppendNewLine(";");
}
}
else
{
builder.AppendNewLine();
if (nQuery.Bulk.IsEndPos)
{
builder.Append("SELECT 1 FROM DUAL;");
}
}
}
}
else if (nQuery.SelectInfo != null)
{
builder.Append("INSERT INTO ");
builder.AppendMember(typeRuntime.TableName, !typeRuntime.IsTemporary);
builder.Append('(');
int i = 0;
DbCommandDefinition_Select cmd2 = this.ParseSelectCommand(nQuery.SelectInfo, 0, false, builder.Parameters) as DbCommandDefinition_Select;
foreach (var kvp in cmd2.Columns)
{
builder.AppendMember(kvp.Key);
if (i < cmd2.Columns.Count - 1)
{
builder.Append(',');
}
i++;
}
builder.Append(')');
builder.AppendNewLine();
builder.Append(cmd2.CommandText);
builder.Append(';');
}
var cmd = new OracleDbCommandDefinition_Insert(builder.ToString(), builder.Parameters, System.Data.CommandType.Text);
cmd.HaveSEQ = useSEQ;
return(cmd);
}
// 创建 INSRT 命令
protected override Command ParseInsertCommand <T>(DbQueryableInfo_Insert <T> nQuery, ParserToken token)
{
ISqlBuilder builder = this.CreateSqlBuilder(token);
TypeRuntimeInfo typeRuntime = TypeRuntimeInfoCache.GetRuntimeInfo <T>();
TableAliasCache aliases = new TableAliasCache();
if (nQuery.Entity != null)
{
object entity = nQuery.Entity;
ISqlBuilder columnsBuilder = this.CreateSqlBuilder(token);
ISqlBuilder valuesBuilder = this.CreateSqlBuilder(token);
// 指定插入列
Dictionary <string, MemberInvokerBase> invokers = typeRuntime.Invokers;
if (nQuery.EntityColumns != null && nQuery.EntityColumns.Count > 0)
{
invokers = new Dictionary <string, MemberInvokerBase>();
for (int i = 0; i < nQuery.EntityColumns.Count; i++)
{
Expression curExpr = nQuery.EntityColumns[i];
if (curExpr.NodeType == ExpressionType.Lambda)
{
curExpr = (curExpr as LambdaExpression).Body.ReduceUnary();
}
if (curExpr.NodeType != ExpressionType.MemberAccess)
{
throw new XFrameworkException("Can't read field name from expression {0}", nQuery.EntityColumns[i]);
}
MemberExpression member = curExpr as MemberExpression;
string name = member.Member.Name;
invokers[name] = typeRuntime.Invokers[name];
}
}
foreach (var kv in invokers)
{
MemberInvokerBase invoker = kv.Value;
var column = invoker.Column;
if (column != null && column.NoMapped)
{
continue;
}
if (invoker.ForeignKey != null)
{
continue;
}
if (invoker.Member.MemberType == System.Reflection.MemberTypes.Method)
{
continue;
}
if (invoker != nQuery.AutoIncrement)
{
columnsBuilder.AppendMember(invoker.Member.Name);
columnsBuilder.Append(',');
var value = invoker.Invoke(entity);
string seg = builder.GetSqlValueWidthDefault(value, column);
valuesBuilder.Append(seg);
valuesBuilder.Append(',');
}
}
columnsBuilder.Length -= 1;
valuesBuilder.Length -= 1;
if (nQuery.Bulk == null || !nQuery.Bulk.OnlyValue)
{
builder.Append("INSERT INTO ");
builder.AppendMember(typeRuntime.TableName, !typeRuntime.IsTemporary);
builder.Append('(');
builder.Append(columnsBuilder);
builder.Append(')');
builder.AppendNewLine();
builder.AppendNewTab();
builder.Append("VALUES");
}
if (nQuery.Bulk != null && nQuery.Bulk.OnlyValue)
{
builder.AppendNewTab();
}
builder.Append('(');
builder.Append(valuesBuilder);
builder.Append(')');
if (nQuery.Bulk != null && !nQuery.Bulk.IsEndPos)
{
builder.Append(",");
builder.AppendNewLine();
}
if (nQuery.Bulk == null && nQuery.AutoIncrement != null)
{
builder.Append(';');
builder.AppendNewLine();
// sequence，命名原则是 tablename_columnname_seq.
builder.AppendFormat("SELECT CURRVAL('{0}_{1}_seq')", typeRuntime.TableName, nQuery.AutoIncrement.Member.Name);
builder.Append(" AS ");
builder.Append(this.QuotePrefix);
builder.Append(Constant.AUTOINCREMENTNAME);
builder.Append(this.QuoteSuffix);
}
}
else if (nQuery.SelectInfo != null)
{
builder.Append("INSERT INTO ");
builder.AppendMember(typeRuntime.TableName, !typeRuntime.IsTemporary);
builder.Append('(');
int i = 0;
SelectCommand cmd2 = this.ParseSelectCommandImpl(nQuery.SelectInfo, 0, false, token) as SelectCommand;
//for (int i = 0; i < seg.Columns.Count; i++)
foreach (var kvp in cmd2.Columns)
{
builder.AppendMember(kvp.Key);
if (i < cmd2.Columns.Count - 1)
{
builder.Append(',');
}
i++;
}
builder.Append(')');
builder.AppendNewLine();
builder.Append(cmd2.CommandText);
}
if (nQuery.Bulk == null || nQuery.Bulk.IsEndPos)
{
builder.Append(';');
}
return(new Command(builder.ToString(), builder.Token != null ? builder.Token.Parameters : null, System.Data.CommandType.Text));
}
