CODEWITHSUNDEEP
c++cppcms
E-Kami
E-Kami

Reputation: 2669

cppcms, retrieving values from form

I would like to know how to retrieve POST fields from a pure html file, without using a class which inherit from cppcms::form. I want the class which implements For example with this class:

std::string Index::main(const std::string &url, const std::map<std::string, std::string> parameters)
{
 std::string out = (
        "<html>\n"
        "<body>\n"
        "<form name='test' action='' method='post'>"
        "<h1>Hello, put your name here:</h1><br />"
        "<input type='text' name='user'>"
        "<input type='submit' value='Submit'>"
        "</form>"
        "</body>\n"
        "</html>\n"
 );

  return out;
}

This method is called in a class which inherit from cppcms::application:

void Engine::main(const std::string &url)
{
   std::map<std::string, std::string> params;

   pages["/"] = boost::bind(&Index::main, boost::shared_ptr<Index>(new Index), _1, _2);
   std::string out = pages[url](url, params); // Call to Index::main

   response().out() << out;
 }

What I would like to do is retrieving the "user" field and putting it into the "params" map without having to make my Index class inherit from cppcms::form or using the "get" method inside of "post". I want the html files/classes to be completely independents from the cppcms framework. Is it possible? Thank you.

Upvotes: 0

Views: 794

Answers (1)

Artyom
Artyom

Reputation: 31243

You still want to use cppcms::forms even if you don't use automatic form (HTML) generation.

Why? Many good reasons: CSRF validation, encoding validation, various settings validation, etc, etc, etc.

You can setup the parameters you need like username.name("user") in cppcms::form::widgets classes but still use forms framework.

cppcms::widgets::text username;
username.name("user");
// validation - what you need
username.non_empty()

// single widget loading
username.load(context());
if(username.validate()) {
   myname=username.value();
}

// better as you can handle several widgets at once
cppcms::form frm;
frm.add(username);
...
frm.load(context())
if(frm.validate()) {
  ...
  myname=username.value();
}

Upvotes: 0

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