cppcms-users — Disussions of users of CppCMS

Re: [Cppcms-users] CppCMS 0.99.2 - Beta 2 released

[Artyom <art...@ya...>]

Hello all,

There was a small issue in CppCMS Beta 2 release,
that caused all proto_* tests to fail, please take
updated 0.99.2.1 version of file from sourceforge.

Artyom




----- Original Message ----
> From: Artyom <art...@ya...>
> To: cpp...@li...
> Sent: Wed, August 4, 2010 10:38:49 PM
> Subject: [Cppcms-users] CppCMS 0.99.2 - Beta 2 released
> 
> The second beta is availible for download:
> 
> Changes from Beta 1.
> 
> -  Significant performance improvements in Booster.Aio
> - Significant performance  improvment in FastCGI backend.
> - Important bug fixes in file upload  handling.
> - Fixed response/status handling in synchronous and asynchronous  API.
> - Fixed incorrect numbers handling in JSON.
> - Added more  examples
> - Various platform related fixes.
> 
> 
> 
> Regards,
>    Artyom
> 
> 
>       
> 
> ------------------------------------------------------------------------------
> The  Palm PDK Hot Apps Program offers developers who use the
> Plug-In Development  Kit to bring their C/C++ apps to Palm for a share
> of $1 Million in cash or HP  Products. Visit us here for more  details:
> http://p.sf.net/sfu/dev2dev-palm
> _______________________________________________
> Cppcms-users  mailing list
> Cpp...@li...
> https://lists.sourceforge.net/lists/listinfo/cppcms-users
> 


      

Re: [Cppcms-users] Cppcms-users Digest, Vol 13, Issue 2

[Artyom <art...@ya...>]

> What are the API changes that you  expect?
> 

There are several expected changes:

1. I would probably add an option to have several event loops in single cppcms 
process
   but it seems to be backward compatible change
2. The Booster.Aio sockets classes are going to be changed, into more asio like 
style
3. It looks like localization API would have slight changes.

Meanwhile there was only one important change between beta 1 to 2 - all 
asynchronous
API use booster::callback rather then booster::function. callback unlike 
function
uses reference counting of internal object rather then coping, this improves
performance significantly but has effect on state-full callbacks.
Which are almost never state-full.

Artyom


      

Re: [Cppcms-users] Getting session cookie id upon session creation

[Artyom <art...@ya...>]

> Is it possible to retrieve the session cookie  in another way?

At today's API it is possible to do this from client side only,
using JavaScript.  In order to be able to see response cookies
`cppcms::http::response` class should be extended to support it.
Quite trivial change.

Also you may create your own session backend, but this is BAD idea.

> I want to put in my response to the creation of a new session  after
> login the session id.

Why would you do such thing? This is quite bad idea as it has some
security issues as this data may leak somehow.

The best to keep it withing cookies.

Also please note, this is generally should not be session id

See <http://art-blog.no-ip.info/wikipp/en/page/cppcms_1x_config#session>

This maybe just encrypted or signed session data in cookie and not
some kind of id (depending on session backend you are using).

> The function get_session_cookie() returns an empty string.

You should not use this function as described in the manual
as it should be used only from implementations of session backend.

Note: get_session_cookie() gives incoming cookie data (i.e. request's cookie)
      and set_session_cookies() sets outgoing cookie data (i.e. response' 
cookie)
      and this cookie is set only after you save session.

So, simplest solution is to patch a little http::response for this
so it would support retrieving response cookies, not just setting them
(generally good thing to be in CppCMS's API), but I would 
suggest for you to rethink if you really need to have this cookie.

Artyom



      

[Cppcms-users] Getting session cookie id upon session creation

[Geert V. de V. <gee...@ba...>]

Hi,

I want to put in my response to the creation of a new session after
login the session id. I'm unable to retrieve it when the session is just
created. The function get_session_cookie() returns an empty string. I
also tried calling the save() function of the session interface but this
doesn't seem to help.
Is it possible to retrieve the session cookie in another way?

Greetings,
Geert


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[Cppcms-users] CppCMS 0.99.2 - Beta 2 released

[Artyom <art...@ya...>]

The second beta is availible for download:

Changes from Beta 1.

- Significant performance improvements in Booster.Aio
- Significant performance improvment in FastCGI backend.
- Important bug fixes in file upload handling.
- Fixed response/status handling in synchronous and asynchronous API.
- Fixed incorrect numbers handling in JSON.
- Added more examples
- Various platform related fixes.



Regards,
  Artyom


      

Re: [Cppcms-users] Cppcms-users Digest, Vol 13, Issue 3

[matt p. <k3...@ho...>]

I am not sure the exact version, but it is 0.x.x   I think it's 0.0.6.
I've only done a few tests with it, I am writing some other parts of the system, and don't expect to start cppcms daily development till September.  which is why I thought if 1.x.x is stable per you, maybe I should skip 0.0.x and avoid upgrade issues.   (since it's not going to be a straight path upgrade, per your comments)
Features I'm going to be utilizing mostly concern form input, ajax communications (am very interested in the push technology), and serving up the web page.  My main benefit to using cppcms is using C++ code for speed, and shared memory with other c++ processes, and memory size too.  
Thanks!Matt 		 	   		  

Re: [Cppcms-users] Cppcms-users Digest, Vol 13, Issue 2

[Daniel V. <chi...@gm...>]

>   How many of you using CppCMS 1.x.x beta and how many of you
>   are using CppCMS 0.0.x?

I use CppCMS 1.x.x on two projects and I have no problems.

My opinion is cppcms 1.x.x is stable.

Re: [Cppcms-users] Cppcms-users Digest, Vol 13, Issue 2

[Geert V. de V. <gee...@ba...>]

1.x.x hasn't let me down yet in the development of my application. So it
seems stable. The only major issue for calling it the stable is the lack
of documentation. This should be taken care off before making it stable
imho.
What are the API changes that you expect?

Greetins,
Geert

On Wed, 2010-08-04 at 07:05 -0700, Artyom wrote:
> Yes, indeed, CppCMS 1.x is much better:
> 
> - Better and Reacher API
> - Better Unit test coverage
> - Simpler installation
> - Better OS support.
> - Even It is still beta, it is quite stable one and I think it is
>   even less buggy then CppCMS 0.x, but its API is still evolving.
> 
> So at this point I could even declare CppCMS 1.x.x as "stable version"
> but the API and ABI can't be considered stable.
> 
> When CppCMS 1.x.x will be release it would be ABI stable till 
> next release so this is why I still don't make an official stable
> release.
> 
> But these are points that CppCMS users should be aware of.
> 
> In any case I have a big question:
> 
>   How many of you using CppCMS 1.x.x beta and how many of you
>   are using CppCMS 0.0.x?
> 
> Maybe it is better to declare CppCMS 1.x.x branch as stable and release
> versions 0.99.X that would be considered as stable with evolving API?
> 
> Regards,
>   Artyom
> 
> 
>       
> 
> ------------------------------------------------------------------------------
> The Palm PDK Hot Apps Program offers developers who use the
> Plug-In Development Kit to bring their C/C++ apps to Palm for a share
> of $1 Million in cash or HP Products. Visit us here for more details:
> http://p.sf.net/sfu/dev2dev-palm
> _______________________________________________
> Cppcms-users mailing list
> Cpp...@li...
> https://lists.sourceforge.net/lists/listinfo/cppcms-users



DISCLAIMER:
Unless indicated otherwise, the information contained in this message is privileged and confidential, and is intended only for the use of the addressee(s) named above and others who have been specifically authorized to receive it. If you are not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this message and/or attachments is strictly prohibited. The company accepts no liability for any damage caused by any virus transmitted by this email. Furthermore, the company does not warrant a proper and complete transmission of this information, nor does it accept liability for any delays. If you have received this message in error, please contact the sender and delete the message. Thank you.

Re: [Cppcms-users] Cppcms-users Digest, Vol 13, Issue 2

[Artyom <art...@ya...>]

Yes, indeed, CppCMS 1.x is much better:

- Better and Reacher API
- Better Unit test coverage
- Simpler installation
- Better OS support.
- Even It is still beta, it is quite stable one and I think it is
  even less buggy then CppCMS 0.x, but its API is still evolving.

So at this point I could even declare CppCMS 1.x.x as "stable version"
but the API and ABI can't be considered stable.

When CppCMS 1.x.x will be release it would be ABI stable till 
next release so this is why I still don't make an official stable
release.

But these are points that CppCMS users should be aware of.

In any case I have a big question:

  How many of you using CppCMS 1.x.x beta and how many of you
  are using CppCMS 0.0.x?

Maybe it is better to declare CppCMS 1.x.x branch as stable and release
versions 0.99.X that would be considered as stable with evolving API?

Regards,
  Artyom


      

Re: [Cppcms-users] Cppcms-users Digest, Vol 13, Issue 2

[matt p. <k3...@ho...>]

Artyom,
Regarding the 1.x being better API and obviously more feature rich, I have a concern.
I installed 0.x, and in order to do so, had to install boost and a bunch of other stuff.  If I were to install 1.x, would I just have to worry about the cppcms part?   This is on Linux.
Thanks,Matt

> From: cpp...@li...
> Subject: Cppcms-users Digest, Vol 13, Issue 2
> To: cpp...@li...
> Date: Wed, 4 Aug 2010 12:07:17 +0000
> 
> Send Cppcms-users mailing list submissions to
> 	cpp...@li...
> 
> To subscribe or unsubscribe via the World Wide Web, visit
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> or, via email, send a message with subject or body 'help' to
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> You can reach the person managing the list at
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> 
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Cppcms-users digest..."
> 
> 
> Today's Topics:
> 
>    1. C++ Web Development (Judah Anthony)
>    2. Re: C++ Web Development (Artyom)
>    3. Re: C++ Web Development (Aris Setyawan)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Tue, 3 Aug 2010 11:32:08 -0400
> From: Judah Anthony <jud...@ec...>
> Subject: [Cppcms-users] C++ Web Development
> To: cpp...@li...
> Message-ID:
> 	<AANLkTim=nWTohvk7veWZs=5Ym=4s5...@ma...>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> Hi,
> 
> I'm am currently a PHP web developer, but I'm interested in the structure,
> performance, and low level access of C++.  Where should I start?  Should I
> be looking into CppCMS 1.X or 0.X?  Is there a guide that can take me
> through everything (including setting up the nginx and fcgi)?
> 
> Judah Anthony
> Drupal Developer
> Economist.com
> p   212.554.0611
> e   jud...@ec...
> im janthonyeconomist (Skype)
> -------------- next part --------------
> An HTML attachment was scrubbed...
> 
> ------------------------------
> 
> Message: 2
> Date: Tue, 3 Aug 2010 11:05:09 -0700 (PDT)
> From: Artyom <art...@ya...>
> Subject: Re: [Cppcms-users] C++ Web Development
> To: cpp...@li...
> Message-ID: <355...@we...>
> Content-Type: text/plain; charset=us-ascii
> 
> Hi,
> 
> Hello, 
> 
> first of all make sure you had registered to this mailing
> list, so I would not have to approve your mails.
> 
> > Where should I start?  Should I be 
> > looking into CppCMS 1.X or 0.X?
> 
> CppCMS 0.x is better documented has more tutorials
> but with release of 1.x it would receive only minor
> support. So for future 1.x is better but be aware
> that it is still beta version, but it is quite stable.
> 
> The major drawback of CppCMS 1.x.x is that it has
> less tutorials. But it has much
> better API and much simpler to configure and install.
> 
> So it is up to you.
> 
> Note: CppCMS 1.x had brought big changed is API so
>       it would not be stright forward to upgrade to 
>       next version.
> 
> 
> >Is there a guide that can take me through 
> >everything 
> 
> Averithing can be found there:
> 
>    http://art-blog.no-ip.info/wikipp/en/page/main
> 
> Start from tutorials and reference documentation.
> 
> Also CppCMS 1.x has quite a set of examples in svn.
> 
> > (including setting up the nginx and fcgi)?
> 
> There is utility cppcms_run that allows you to debug and
> run your application with different web servers, also CppCMS 1.x has
> build in web server for debugging.
> 
> Just take a look on configuration file being created, 
> CppCMS setup is same setup for general fastcgi process.
> 
> Regards,
>   Artyom
> 
> 
>       
> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Wed, 4 Aug 2010 10:30:59 +0700
> From: Aris Setyawan <ari...@gm...>
> Subject: Re: [Cppcms-users] C++ Web Development
> To: cpp...@li...
> Message-ID:
> 	<AANLkTikbwexJpJ76bitrSrz0D26gP70qjA=DP7...@ma...>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> Hi, I'm currently a PHP developer too, and I have a little experience in C++
> development with Borland C++ Builder and SDCC.
> 
> If you new to development in C++, we must learn some different (or different
> implemented) language features compare with PHP, such as function operator,
> template (many external library provide API via template), and pointer
> (including array pointer, string pointer, etc).
> 
> We must know how to compile and link our program with or without external
> library (some that maybe strange for a PHP developer). A book that cover
> this problem is "An Introduction to GCC,for the GNU Compilers gcc and g++".
> 
> Oh ya, I have read an old Design Pattern book by gang of four. Some part of
> this book explain how to use C++ language feature in design pattern in an
> elegant and simple way.
> 
> I hope this can help you.
> 
> -Aris Setyawan
> -------------- next part --------------
> An HTML attachment was scrubbed...
> 
> ------------------------------
> 
> ------------------------------------------------------------------------------
> The Palm PDK Hot Apps Program offers developers who use the
> Plug-In Development Kit to bring their C/C++ apps to Palm for a share
> of $1 Million in cash or HP Products. Visit us here for more details:
> http://p.sf.net/sfu/dev2dev-palm
> 
> ------------------------------
> 
> _______________________________________________
> Cppcms-users mailing list
> Cpp...@li...
> https://lists.sourceforge.net/lists/listinfo/cppcms-users
> 
> 
> End of Cppcms-users Digest, Vol 13, Issue 2
> *******************************************
 		 	   		  

Re: [Cppcms-users] C++ Web Development

[Aris S. <ari...@gm...>]

Hi, I'm currently a PHP developer too, and I have a little experience in C++
development with Borland C++ Builder and SDCC.

If you new to development in C++, we must learn some different (or different
implemented) language features compare with PHP, such as function operator,
template (many external library provide API via template), and pointer
(including array pointer, string pointer, etc).

We must know how to compile and link our program with or without external
library (some that maybe strange for a PHP developer). A book that cover
this problem is "An Introduction to GCC,for the GNU Compilers gcc and g++".

Oh ya, I have read an old Design Pattern book by gang of four. Some part of
this book explain how to use C++ language feature in design pattern in an
elegant and simple way.

I hope this can help you.

-Aris Setyawan

Re: [Cppcms-users] C++ Web Development

[Artyom <art...@ya...>]

Hi,

Hello, 

first of all make sure you had registered to this mailing
list, so I would not have to approve your mails.

> Where should I start?  Should I be 
> looking into CppCMS 1.X or 0.X?

CppCMS 0.x is better documented has more tutorials
but with release of 1.x it would receive only minor
support. So for future 1.x is better but be aware
that it is still beta version, but it is quite stable.

The major drawback of CppCMS 1.x.x is that it has
less tutorials. But it has much
better API and much simpler to configure and install.

So it is up to you.

Note: CppCMS 1.x had brought big changed is API so
      it would not be stright forward to upgrade to 
      next version.


>Is there a guide that can take me through 
>everything 

Averithing can be found there:

   http://art-blog.no-ip.info/wikipp/en/page/main

Start from tutorials and reference documentation.

Also CppCMS 1.x has quite a set of examples in svn.

> (including setting up the nginx and fcgi)?

There is utility cppcms_run that allows you to debug and
run your application with different web servers, also CppCMS 1.x has
build in web server for debugging.

Just take a look on configuration file being created, 
CppCMS setup is same setup for general fastcgi process.

Regards,
  Artyom


      

[Cppcms-users] C++ Web Development

[Judah A. <jud...@ec...>]

Hi,

I'm am currently a PHP web developer, but I'm interested in the structure,
performance, and low level access of C++.  Where should I start?  Should I
be looking into CppCMS 1.X or 0.X?  Is there a guide that can take me
through everything (including setting up the nginx and fcgi)?

Judah Anthony
Drupal Developer
Economist.com
p   212.554.0611
e   jud...@ec...
im janthonyeconomist (Skype)

Re: [Cppcms-users] Windows problem..

[Frank E. <fra...@an...>]

ok,

forget it - some other application was running on 8080.. i changed the
port and now it works.

regards,

frank

Am 02.08.2010 01:17, schrieb Frank Enderle:
> hi,
> 
> i try to run cppcms on windows 7 and visual studio 2008 express. after a
> lot of trying i managed to compile cppcms. i compiled my program - which
> works fine on linux - and started it. everything seemed alright, with
> one exception: the program does not respond to requests - neither http
> nor fastcgi. the requests always time out.
> 
> however the socket is open and connectable using telnet, but it just
> won't send responses.
> 
> i compiled cppcms using visual studio as described in the wiki. the
> supplemental tools (pcre, zlib, etc) i grabbed precompiled from the
> internet, mostly from gnuwin32.
> 
> is there anything i could check?
> 
> regards,
> 
> frank.
> 


-- 
Dipl.-Ing. (FH) Frank Enderle

anamica UG (haftungsbeschränkt)
Beinsteinerstr. 6
71334 Waiblingen

Telefon:  +49 151 14981091
Telefax:  +49 7151 1335770
E-Mail:   fra...@an...
Internet: www.anamica.de

Handelsregister: AG Stuttgart HRB 732357
Geschäftsführer: Yvonne Holzwarth, Frank Enderle

[Cppcms-users] Windows problem..

[Frank E. <fra...@an...>]

hi,

i try to run cppcms on windows 7 and visual studio 2008 express. after a
lot of trying i managed to compile cppcms. i compiled my program - which
works fine on linux - and started it. everything seemed alright, with
one exception: the program does not respond to requests - neither http
nor fastcgi. the requests always time out.

however the socket is open and connectable using telnet, but it just
won't send responses.

i compiled cppcms using visual studio as described in the wiki. the
supplemental tools (pcre, zlib, etc) i grabbed precompiled from the
internet, mostly from gnuwin32.

is there anything i could check?

regards,

frank.

-- 
Dipl.-Ing. (FH) Frank Enderle

anamica UG (haftungsbeschränkt)
Beinsteinerstr. 6
71334 Waiblingen

Telefon:  +49 151 14981091
Telefax:  +49 7151 1335770
E-Mail:   fra...@an...
Internet: www.anamica.de

Handelsregister: AG Stuttgart HRB 732357
Geschäftsführer: Yvonne Holzwarth, Frank Enderle

[Cppcms-users] Windows problem..

[Frank E. <fe...@in...>]

hi,

i try to run cppcms on windows 7 and visual studio 2008 express. after a
lot of trying i managed to compile cppcms. i compiled my program - which
works fine on linux - and started it. everything seemed alright, with
one exception: the program does not respond to requests - neither http
nor fastcgi. the requests always time out.

however the socket is open and connectable using telnet, but it just
won't send responses.

i compiled cppcms using visual studio as described in the wiki. the
supplemental tools (pcre, zlib, etc) i grabbed precompiled from the
internet, mostly from gnuwin32.

is there anything i could check?

regards,

frank.

Re: [Cppcms-users] Disable escaping of variables when rendering template

[Artyom <art...@ya...>]

Yes,

See this:

  
<http://art-blog.no-ip.info/wikipp/en/page/cppcms_1x_templates_comm#Variable+with+filters>

and this
  
<http://art-blog.no-ip.info/cppcms_ref_v0_99_1/namespacecppcms_1_1filters.html>

Basically what you need is:

   <% mypropery | raw %>

> 
> is there  an elegant solution to disable the escaping of variables that
> are rendered in  a template? I require this because I have to give some
> HTML tags for  formatting unescaped to the client browser.
> 
> Currently, I'm using this  code:
> <% c++ out()<<content.myproperty; %>
> 
> But to me this  seems not very elegant...
> 
> Thanks for your help,
> Julian


      

[Cppcms-users] Disable escaping of variables when rendering template

[Julian P. <ju...@wh...>]

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Hallo,

is there an elegant solution to disable the escaping of variables that
are rendered in a template? I require this because I have to give some
HTML tags for formatting unescaped to the client browser.

Currently, I'm using this code:
<% c++ out()<<content.myproperty; %>

But to me this seems not very elegant...

Thanks for your help,
Julian
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Re: [Cppcms-users] Howto use JSON

[Julian P. <ju...@wh...>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Am 29.07.2010 14:54, schrieb Artyom:
> And take a look on this discussion.
> 
> http://permalink.gmane.org/gmane.comp.lib.cppcms.user/72
> 
> For "native" conversion between C++ objects and json objects.
> 

Ok, with a few typo corrections the code example worked for me.

Thanks!
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Re: [Cppcms-users] Specify folder for temporary upload files

[Artyom <art...@ya...>]

> 
> Thanks, this answered my question, but  just raised another: in the named
> documentation it reads that the path for  temporary files is otherwise
> made from the TMP or TEMP environment variable.  This variable is not set
> in my environment (Linux), so where from does the  upload method take the
> path to store to instead?

In /tmp so this is not a problem, fixed docs.

> Would it be enough to run  my application with
> TMP="/path/to/writable/dir" myapp.fcgi 

Yes, this should work

>i f I didn't want  to use an
> unstable SVN revision? How unstable is the SVN revision indeed?  Does it
> make a big difference to use the latest SVN version compared to  the
> current beta?

There are no big differences, but I would do recommend you to take 
an svn version as it includes some fixes with file u[;pad handling that
was founded when I added several test cases for these configuration
options.

So if you upload files, it is better to take svn version.

About stability, generally it is as stable as beta, but time to
time there may be small issues. So just don't update
to every latest revision and listen to what happens on this
mailing list.

Artyom


      

Re: [Cppcms-users] Specify folder for temporary upload files

[Julian P. <ju...@wh...>]

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Am 29.07.2010 14:48, schrieb Artyom:
> Hell, 
> 
> Take a look on this:
> 
> <http://art-blog.no-ip.info/wikipp/en/page/cppcms_1x_config#security.uploads\_path>
> 
> 
> 
> But you need to take the latest version from SVN - revision 1327 or above.
> I have just added these options I've planned to add long time before but hadn't 
> get there.
> 
> Artyom
> 
> 
> 

Thanks, this answered my question, but just raised another: in the named
documentation it reads that the path for temporary files is otherwise
made from the TMP or TEMP environment variable. This variable is not set
in my environment (Linux), so where from does the upload method take the
path to store to instead?
Would it be enough to run my application with
TMP="/path/to/writable/dir" myapp.fcgi if I didn't want to use an
unstable SVN revision? How unstable is the SVN revision indeed? Does it
make a big difference to use the latest SVN version compared to the
current beta?

Thanks for your reply,
Julian
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Re: [Cppcms-users] Howto use JSON

[Artyom <art...@ya...>]

Read documentation of json::value 

http://art-blog.no-ip.info/cppcms_ref_v0_99_1/classcppcms_1_1json_1_1value.html

In order to understand how to save and load data to and from json objects.

And take a look on this discussion.

http://permalink.gmane.org/gmane.comp.lib.cppcms.user/72

For "native" conversion between C++ objects and json objects.

If you will have more questions feel free to ask.

Artyom



> 
> another  question: How can I use the json methods for my own purpose?
> I've created a  struct with some std::string members and tried
> 
> cppcms::json::value  value;
> 
> value.set("",mystruct);
> 
> The compiler claimed that there was  an "incomplete type used in nested
> name specifier"  cppcms::json::traits<mystruct_t>.
> 


      

Re: [Cppcms-users] Specify folder for temporary upload files

[Artyom <art...@ya...>]

Hell, 

Take a look on this:

<http://art-blog.no-ip.info/wikipp/en/page/cppcms_1x_config#security.uploads\_path>



But you need to take the latest version from SVN - revision 1327 or above.
I have just added these options I've planned to add long time before but hadn't 
get there.

Artyom





> 
> is there a  way to tell cppcms where to store the temporary files it
> creates on  multipart/form-data uploads?
> I need this because the application I'm  currently writing shall run on
> an embedded device which loads from a read  only filesystem and has only
> a certain path where data can be stored  persistently. (/tmp is a RAM
> disk, but the problem is, that the available RAM  is not big enough to
> hold the upload until it is save'd_to somewhere ->  embedded device).
> 


      

[Cppcms-users] Howto use JSON

[Julian P. <ju...@wh...>]

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Hash: SHA1

Hi,

another question: How can I use the json methods for my own purpose?
I've created a struct with some std::string members and tried

cppcms::json::value value;

value.set("",mystruct);

The compiler claimed that there was an "incomplete type used in nested
name specifier" cppcms::json::traits<mystruct_t>.

Should my struct subclass another class or what else have I done wrong?
How is the JSON encoder to be used?

Thanks for your replies,
Julian
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[Cppcms-users] Specify folder for temporary upload files

[Julian P. <ju...@wh...>]

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Hash: SHA1

Hallo,

is there a way to tell cppcms where to store the temporary files it
creates on multipart/form-data uploads?
I need this because the application I'm currently writing shall run on
an embedded device which loads from a read only filesystem and has only
a certain path where data can be stored persistently. (/tmp is a RAM
disk, but the problem is, that the available RAM is not big enough to
hold the upload until it is save'd_to somewhere -> embedded device).

Thanks for your solutions,
Julian
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