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#include "verbly.h"
namespace verbly {
std::string preposition::get_form() const
{
return form;
}
preposition_query::preposition_query(const data& _data) : _data(_data)
{
}
preposition_query& preposition_query::limit(int _limit)
{
this->_limit = _limit;
return *this;
}
preposition_query& preposition_query::random()
{
_random = true;
return *this;
}
preposition_query& preposition_query::in_group(std::string _arg)
{
_in_group.push_back(_arg);
return *this;
}
std::list<preposition> preposition_query::run() const
{
std::stringstream construct;
construct << "SELECT form FROM prepositions";
if (!_in_group.empty())
{
std::list<std::string> clauses(_in_group.size(), "groupname = @GNAME");
construct << " WHERE preposition_id IN (SELECT preposition_id FROM preposition_groups WHERE ";
construct << verbly::implode(std::begin(clauses), std::end(clauses), " OR ");
construct << ")";
}
if (_random)
{
construct << " ORDER BY RANDOM()";
}
if (_limit != unlimited)
{
construct << " LIMIT " << _limit;
}
sqlite3_stmt* ppstmt;
std::string query = construct.str();
if (sqlite3_prepare_v2(_data.ppdb, query.c_str(), query.length(), &ppstmt, NULL) != SQLITE_OK)
{
throw std::runtime_error(sqlite3_errmsg(_data.ppdb));
}
for (auto& group : _in_group)
{
sqlite3_bind_text(ppstmt, sqlite3_bind_parameter_index(ppstmt, "@GNAME"), group.c_str(), group.length(), SQLITE_STATIC);
}
std::list<preposition> output;
while (sqlite3_step(ppstmt) == SQLITE_ROW)
{
preposition pp;
pp.form = std::string(reinterpret_cast<const char*>(sqlite3_column_text(ppstmt, 0)));
output.push_back(pp);
}
return output;
}
};
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