tomasz.sowa/morm
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added support for 'in()' statement in 'select'

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git-svn-id: svn://ttmath.org/publicrep/morm/trunk@1086 e52654a7-88a9-db11-a3e9-0013d4bc506e
This commit is contained in:
Tomasz Sowa
2018-04-18 17:52:09 +00:00
parent ffb7ac85a6
commit 476e5de292
8 changed files with 131 additions and 12 deletions
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64
src/baseexpression.h
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@@ -36,6 +36,7 @@
#define headerfile_morm_baseexpression
#include <list>
#include <set>
#include "textstream/textstream.h"
#include "morm_types.h"
#include "date/date.h"
@@ -86,6 +87,24 @@ public:
}
template<typename FieldValue>
void field_in(PT::TextStream & stream, const wchar_t * field_name, const std::set<FieldValue> & container)
{
field_in_generic<FieldValue, std::set<FieldValue>>(stream, field_name, container);
}
template<typename FieldValue>
void field_in(PT::TextStream & stream, const wchar_t * field_name, const std::list<FieldValue> & container)
{
field_in_generic<FieldValue, std::list<FieldValue>>(stream, field_name, container);
}
template<typename FieldValue>
void field_in(PT::TextStream & stream, const wchar_t * field_name, const std::vector<FieldValue> & container)
{
field_in_generic<FieldValue, std::vector<FieldValue>>(stream, field_name, container);
}
template<typename ModelClass>
void field_list(const wchar_t * field_name, const std::list<ModelClass> & field_value, bool insertable = true, bool updatable = true, bool is_primary_key = false)
{
@@ -114,6 +133,7 @@ public:
}
}
template<typename FieldValue>
void field(PT::TextStream & stream, const wchar_t * field_name, const FieldValue & field_value, bool insertable = true, bool updatable = true, bool is_primary_key = false)
{
@@ -187,11 +207,15 @@ protected:
template<typename FieldValue>
void put_field_value(const FieldValue & field_value)
{
before_field_value(field_value);
esc(field_value, *out_stream);
after_field_value(field_value);
if( out_stream )
{
before_field_value(field_value);
esc(field_value, *out_stream);
after_field_value(field_value);
}
}
template<typename ModelClass>
void put_field_value_list(const std::list<ModelClass> & field_value)
{
@@ -225,6 +249,40 @@ protected:
}
}
// used in 'in()' statements, may should be renamed?
template<typename FieldValue, typename Container>
void field_in_generic(PT::TextStream & stream, const wchar_t * field_name, const Container & container)
{
// IMPROVE ME
// what about if container is empty?
// only 'in()' statement would be generated
this->out_stream = &stream;
field_before();
put_field_name(field_name);
put_name_value_separator();
bool is_first = true;
(*out_stream) << "(";
for(const FieldValue & v : container)
{
if( !is_first )
{
(*out_stream) << ",";
}
put_field_value(v);
is_first = false;
}
(*out_stream) << ") ";
field_after();
this->out_stream = nullptr;
}
virtual void before_field_name();
virtual void after_field_name();