public string GetDeleteSql <T>(Expression <Func <T, bool> > expression, out IDictionary <string, dynamic> param)
{
var context = new ExpressionVisitorContext(SqlGenerator);
var visitor = new WhereExpressionVisitor(context);
visitor.Visit(expression);
var whereSql = visitor.Condition.ToSql(SqlGenerator);
param = context.Parameters;
var targetMapper = TypeMapperCache.GetTypeMapper(typeof(T));
return(SqlGenerator.GetDeleteSql(targetMapper, null, whereSql));
}
public string GetUpdateSql <T>(Expression <Func <T, bool> > expression, Expression <Func <T, object> > paramInput, object value, out IDictionary <string, dynamic> paramOuput)
{
var context = new ExpressionVisitorContext(SqlGenerator);
var whereVisitor = new WhereExpressionVisitor(context);
whereVisitor.Visit(expression);
var whereSql = whereVisitor.Condition.ToSql(SqlGenerator);
var setVisitor = new MemberExpressionVisitor(context);
setVisitor.Visit(paramInput);
var setSql = string.Format("{0} = {1}", setVisitor.Column.ToSql(SqlGenerator), context.AddParameter(value));
paramOuput = context.Parameters;
return(SqlGenerator.GetUpdateSql(TypeMapperCache.GetTypeMapper(typeof(T)), setSql, whereSql));
}
public string GetUpdateSql <T>(Expression <Func <T, bool> > expression, IDictionary <Expression <Func <T, object> >, object> paramInput, out IDictionary <string, dynamic> paramOuput)
{
var context = new ExpressionVisitorContext(SqlGenerator);
var whereVisitor = new WhereExpressionVisitor(context);
whereVisitor.Visit(expression);
var whereSql = whereVisitor.Condition.ToSql(SqlGenerator);
var setVisitor = new MemberExpressionVisitor(context);
var setSql = new StringBuilder();
foreach (KeyValuePair <Expression <Func <T, object> >, object> item in paramInput)
{
setVisitor.Visit(item.Key);
setSql.AppendFormat("{0} = {1},", setVisitor.Column.ToSql(SqlGenerator), context.AddParameter(item.Value));
}
paramOuput = context.Parameters;
return(SqlGenerator.GetUpdateSql(TypeMapperCache.GetTypeMapper(typeof(T)), setSql.Remove(setSql.Length - 1, 1).ToString(), whereSql));
}
public string GetUpdateSql <T>(IDictionary <string, object> source, IDictionary <string, object> condition)
{
var setSql = new StringBuilder();
foreach (KeyValuePair <string, object> item in source)
{
setSql.AppendFormat("{0} = {1},", SqlGenerator.DecorateName(item.Key), SqlGenerator.DecorateParameter(item.Key));
}
var whereSql = new StringBuilder();
foreach (KeyValuePair <string, object> item in condition)
{
whereSql.AppendFormat("{0} = {1} and", SqlGenerator.DecorateName(item.Key), SqlGenerator.DecorateParameter(item.Key));
}
return(SqlGenerator.GetUpdateSql(TypeMapperCache.GetTypeMapper(typeof(T)), setSql.Remove(setSql.Length - 1, 1).ToString(), whereSql.Remove(whereSql.Length - 3, 3).ToString()));
}
public string GetInsertSqlWithIdentity <T>(object obj)
{
var targetMapper = TypeMapperCache.GetTypeMapper(typeof(T));
var sourceMapper = TypeMapperCache.GetTypeMapper(obj);
if (insertSqlWithIdentityCache.Any(i => i.Item1 == sourceMapper.Code && i.Item2 == targetMapper.Code))
{
return(insertSqlWithIdentityCache.Single(i => i.Item1 == sourceMapper.Code && i.Item2 == targetMapper.Code).Item3);
}
string sql = string.Empty;
if (obj is T)
{
sql = SqlGenerator.GetInsertSqlWithIdentity(targetMapper);
}
else
{
sql = SqlGenerator.GetInsertSqlWithIdentity(RebuildMapper(sourceMapper, targetMapper));
}
insertSqlWithIdentityCache.Add(Tuple.Create(sourceMapper.Code, targetMapper.Code, sql));
return(sql);
}
