basic_cache/hello.cpp Source File
#include <cppcms/service.h>
#include <cppcms/application.h>
#include <cppcms/applications_pool.h>
#include <cppcms/cache_interface.h>
#include <iostream>
#include <sstream>
#include "content.h"
class hello: public cppcms::application {
public:
hello(cppcms::service &s) :
cppcms::application(s)
{
}
void main(std::string /*unused*/)
{
content::message c;
c.arg=0;
c.fact=1;
if(request().request_method()=="POST") {
c.info.load(context());
if(c.info.validate()) {
c.arg=c.info.arg.value();
c.info.clear();
}
else { // No cache should be used
render("message",c);
return;
}
}
std::ostringstream key;
key << "factorial_" << c.arg;
if(cache().fetch_page(key.str()))
return;
long long int f=1;
for(int i=1;i<=c.arg;i++) {
f*=i;
}
c.fact=f;
render("message",c);
cache().store_page(key.str(),3600);
}
};
int main(int argc,char ** argv)
{
try {
cppcms::service app(argc,argv);
app.applications_pool().mount(cppcms::applications_factory<hello>());
app.run();
}
catch(std::exception const &e) {
std::cerr<<e.what()<<std::endl;
}
}
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