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#include <pch.hpp>
#include "sqlWriter.h"
#include "scripts.h"
#include <boost/foreach.hpp>
#include <boost/bind.hpp>
#include "sqlVariableBinder.h"
DynamicSql::SqlWriter::SqlWriter()
{
}
DynamicSql::SqlWriter::~SqlWriter()
{
}
template <typename Type, typename Cons>
static
void
appendNew(DynamicSql::Writers * w, const Cons & cons)
{
w->push_back(new Type(cons));
}
static
void
appendNewFromNode(DynamicSql::Writers * w, DynamicSql::SqlCommand::Filters * fs, ScriptNodePtr p)
{
if (fs && p->get_name() == "filter") {
DynamicSql::SqlFilterPtr f = new DynamicSql::SqlFilter(p);
w->push_back(f);
fs->insert(DynamicSql::SqlCommand::Filters::value_type(f->name, f));
}
else if (p->get_name() == "param") {
w->push_back(new DynamicSql::SqlParameter(p));
}
}
DynamicSql::SqlCommand::SqlCommand(ScriptNodePtr s)
{
if (s) {
s->composeWithCallbacks(
boost::bind(&appendNew<SqlText, Glib::ustring>, &writers, _1),
boost::bind(&appendNewFromNode, &writers, &filters, _1));
}
}
Glib::ustring
DynamicSql::SqlCommand::getSqlFor(const Glib::ustring & f) const
{
BOOST_FOREACH(const SqlCommand::Filters::value_type & filter, filters) {
filter.second->active = (filter.second->name == f);
}
Buffer sql;
writeSql(sql);
return Glib::ustring(sql.str());
}
void
DynamicSql::SqlCommand::writeSql(Buffer & sql) const
{
BOOST_FOREACH(const SqlWriterPtr & w, writers) {
w->writeSql(sql);
}
}
void
DynamicSql::SqlCommand::bindParams(ExecContext * ec, DB::Command * cmd, unsigned int & offset) const
{
BOOST_FOREACH(const SqlWriterPtr & w, writers) {
w->bindParams(ec, cmd, offset);
}
}
DynamicSql::SqlFilter::SqlFilter(ScriptNodePtr p) :
name(p->value("name", NULL).as<Glib::ustring>()),
active(false)
{
p->composeWithCallbacks(
boost::bind(&appendNew<SqlText, Glib::ustring>, &writers, _1),
boost::bind(&appendNewFromNode, &writers, (DynamicSql::SqlCommand::Filters *)NULL, _1));
}
void
DynamicSql::SqlFilter::writeSql(Buffer & sql) const
{
if (active) {
BOOST_FOREACH(const SqlWriterPtr & w, writers) {
w->writeSql(sql);
}
}
}
void
DynamicSql::SqlFilter::bindParams(ExecContext * ec, DB::Command * cmd, unsigned int & offset) const
{
if (active) {
BOOST_FOREACH(const SqlWriterPtr & w, writers) {
w->bindParams(ec, cmd, offset);
}
}
}
DynamicSql::SqlParameter::SqlParameter(ScriptNodePtr n) :
Variable(n, boost::optional<Glib::ustring>("local"))
{
}
void
DynamicSql::SqlParameter::writeSql(Buffer & sql) const
{
sql.append("?");
}
void
DynamicSql::SqlParameter::bindParams(ExecContext * ec, DB::Command * cmd, unsigned int & offset) const
{
boost::apply_visitor<const SqlVariableBinder, const VariableType>(SqlVariableBinder(cmd, offset++), (*this)(ec));
}
DynamicSql::SqlText::SqlText(const Glib::ustring & n) :
text(n)
{
}
void
DynamicSql::SqlText::writeSql(Buffer & sql) const
{
sql.append(text);
}
void
DynamicSql::SqlText::bindParams(ExecContext *, DB::Command *, unsigned int &) const
{
}
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