Hello,

Does anyone know where I can find documentation or a tutorial about fpweb?

Also, is the version included in FPC 2.4.0 very old and I should really use the FPC SVN code or can I use the units that come with FPC 2.4.0?

I want to make a simple page which converts hexadecimal to a string. I found some, but they were really crappy. Plain CGI should be the prefered format, as apache modules are too much for this simple task.

thanks,

Felipe Monteiro de Carvalho wrote

Hello, Does anyone know where I can find documentation or a tutorial about fpweb?

http://blog.silvioprog.com.br/2010/06/criando-um-aplicativo-cgi-com_27.html

It's in portuguese

Luiz

Hello,

Thanks, with this blog I seam to be going somewhere and it worked ok with fpc 2.4.0 and the weblaz.lpk package.

One thing still: Is there support for templates?

I am doing something like this to load my page:

procedure TFPWebModule1.DataModuleRequest(Sender: TObject; ARequest: TRequest;
  AResponse: TResponse; var Handled: Boolean);
begin
  AResponse.ContentType := 'text/html;charset=utf-8';
  AResponse.Contents.LoadFromFile(ExtractFilePath(ParamStr(0)) +
'mainpage.html');
  Handled := True;
end;

Something like powutils templates would be extremely handy ... all that html mixed with pascal doesn't look very nice.

Ah ... I see that you can just use Format for that ...

And what about reading a GET input =D Any ideas how to do that?

thanks,

You have templates, if you use actions.

Just create an action, and assign a template to it.

Michael.

Felipe Monteiro de Carvalho wrote

Ah ... I see that you can just use Format for that ... And what about reading a GET input =D Any ideas how to do that?

Well, Request.Variables['Myvar'] is enough, no ?

Michael.

Felipe Monteiro de Carvalho wrote

(...) Something like powutils templates would be extremely handy ... all that html mixed with pascal doesn't look very nice.

Read fpc/packages/fcl-web/fptemplate.txt

MD.

Michael Van Canneyt wrote

Well, Request.Variables['Myvar'] is enough, no ?

Doesn't seam to exist in fpc 2.4.0, any idea how to do that with that version? I found a couple of stuff which didn't work, including:

Request.GetFieldByName();
Self.GetParam();

My mistake, the correct name is 'Queryfields':

Avar:=Request.QueryFields['MyVar'];

And fieldByName() exists already in 2.2, but that queries environment variables, not query variables (hence it will get stuff like 'QUERY_STRING').

I've never heard of GetParam()

Michael.

Michael Van Canneyt wrote

My mistake, the correct name is 'Queryfields': Avar:=Request.QueryFields['MyVar'];

Well, that takes an integer as argument, not a string, but I managed to build my own routine for that. If something like that isn't already in svn fpweb then it should probably be added:

function TFPWebModule1.GetQueryFieldByName(ARequest: TRequest; AName:
string): string;
var
  i, StrIndex: Integer;
  Str: string;
begin
  for i := 0 to ARequest.QueryFields.Count - 1 do
  begin
    StrIndex := Pos('=', ARequest.QueryFields[i]);
    Str := ARequest.QueryFields[i];
    if Copy(Str, 1, StrIndex - 1) = AName then
    begin
      Result := Copy(Str, StrIndex + 1, Length(Str) - StrIndex);
      Break;
    end;
  end;
end;

Not needed, it is a regular stringlist, I again typed a mistake. (I should not do 2 things at the same time :/)

AVar:=Request.QueryFields.Values['MyVar'];

Sorry about the confusion.

But maybe a GetQueryVar() would not be a bad idea.

Michael.

By the way, is there a page in the wiki about fpweb? I used the wiki search and found none. I would like to add this info to the wiki, but thought about asking if there is already a page about it (the wiki search isn't very reliable).

thanks,

/lazarus/components/fpweb/demo/fptemplate/*.*

has examples of how to use templates and template tags.

Felipe Monteiro de Carvalho wrote

By the way, is there a page in the wiki about fpweb? I used the wiki search and found none. I would like to add this info to the wiki, but thought about asking if there is already a page about it (the wiki search isn't very reliable).

look for fcl-web, but the page is very limited :-)

Michael.

I added a small introduction here: http://wiki.lazarus.freepascal.org/fcl-web

Having said that, I think that fpWeb worked quite well for my very simple web page and all kinds of web applications could be developed with it.

Great work.

I have expanded the page with some explanations on multiple modules and actions.

Some things that need more work:
- Templates
- Content producers
- Difference between HTML Web module and regular web module

Michael.

Great work, congratulations.

MD

I've added some words on templates that points to the readme files and the example projects now coming with Lazarus demonstrating the usage of templates.

AB