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Now you can write a short view called add_snippet to handle submissions. In the cab/views directory, create a file called snippets.py, and in it place the following code: from django.http import HttpResponseRedirect from django.shortcuts import render_to_response from cab.forms import AddSnippetForm def add_snippet(request): if request.method == 'POST': form = AddSnippetForm(author=request.user, data=request.POST) if form.is_valid(): new_snippet = form.save() return HttpResponseRedirect(new_snippet.get_absolute_url()) else: form = AddSnippetForm(author=request.user) return render_to_response('cab/add_snippet.html', { 'form': form }) This code will instantiate the form, validate the data, save the new Snippet, and return a redirect to the detail view of that snippet. (Again, always redirect after a successful POST.) At first this looks great, but there s a problem lurking here. You re referring to request. user, which will be the currently logged-in user (Django automatically sets this up when the authentication system has been properly activated). But what happens if the person filling out this form isn t logged in The answer is that your data won t really be valid. When the current user isn t logged in, request.user is a dummy object representing an anonymous user, and it can t be used as the value of a snippet s author field. So what you need is some way to ensure that only loggedin users can fill out this form. Fortunately, Django provides an easy way to handle this, via a decorator in the authentication system called login_required. You can simply import it and apply it to your view function, and anyone who s not logged in will be redirected to a login page:

Figure 3-3. The Forms Runtime Processes screen in OAM From the Forms Runtime Processes screen, the Applications DBA may also click the View Runaways button. The following runaway process thresholds may be filtered (so you can view information about the Forms processes that meet your criteria): maximum memory, maximum CPU, and maximum duration. From this screen you also have the option to terminate a process by selecting it and clicking the Terminate button.

05 06 07 08 09 10 static gboolean plugin_load(GaimPlugin *plugin) { gaim_notify_info(NULL, NULL, "Hello World!", "I've written a plugin"); return TRUE; }

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Lines 5 10 in helloworld.c (Listing 4-1) define the function plugin_load. This is set as the load variable in the GaimPluginInfo structure, and therefore when Gaim needs to load this plug-in, it will find plugin_load s function pointer in the GaimPluginInfo struct and call this function. Line 5 declares the function as static, and the return type as gboolean. static means that functions outside of this source file will not be able to call this function by name. This is useful for two main reasons.

django.http import HttpResponseRedirect django.shortcuts import render_to_response django.contrib.auth.decorators import login_required cab.forms import AddSnippetForm

Forms Server dump files are created on the Forms Node. These files are created in the directory where the Forms process was started. The dump files are named f60webmx_dump_xxxx, where xxxx is a process number. Monitoring should be set up for the directory where these files are created. Notifications can be sent to the appropriate staff if there is an excessive number of dump files created. The following script can be used to monitor for Forms dump files: #Script used to monitor creation of forms dump files FORMS_DIR=$1 LOGFILE=/tmp/forms_dumpfiles_$ORACLE_SID.log ls -l $FORMS_DIR/f60webmx_dump* > $LOGFILE if [ $ -eq 0 ] then # There are dump files, return an error code exit 1 else exit 0 fi If dump files are generated for Forms sessions, the dump files should be reviewed for additional information that can be used to perform research in MetaLink or open an SR to resolve the underlying issue. It may also be necessary to generate Forms trace files. Steps for generating Forms trace files are included in 4 of this guide.

Figure 1. A screenshot of the Gaim application Free software and open source software are terms that differ slightly in semantics but describe essentially the same thing. When downloading Gaim, you are offered the source code. Having unfettered access to the source code is quite valuable for understanding how Gaim works, and is necessary should you wish to make any modifications. The only major provision is that you grant this same right to modify your changes. This way, Gaim benefits from hundreds of talented developers around the world, offering their contributions back to the community. Because Gaim is built entirely with open source tools, involving yourself in its development is easy, and it makes an excellent example to learn from.

def add_snippet(request): if request.method == 'POST': form = AddSnippetForm(author=request.user, data=request.POST) if form.is_valid(): new_snippet = form.save() return HttpResponseRedirect(new_snippet.get_absolute_url()) else: form = AddSnippetForm(author=request.user) return render_to_response('cab/add_snippet.html', { 'form': form }) add_snippet = login_required(add_snippet)

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