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annotate gpp/comments/views.py @ 133:c515b7401078

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Use the new common way to apply markItUp to textareas and to get the smiley and markdown help dialogs for all the remaining apps except for forums and comments.
author Brian Neal <bgneal@gmail.com>
date Fri, 27 Nov 2009 00:21:47 +0000
parents dbd703f7d63a
children d203a4a986d2
rev   line source
gremmie@1 1 """
gremmie@1 2 Views for the comments application.
gremmie@1 3 """
gremmie@1 4 from django.contrib.auth.decorators import login_required
gremmie@1 5 from django.core.exceptions import ObjectDoesNotExist
gremmie@1 6 from django.http import HttpResponse
gremmie@1 7 from django.http import HttpResponseRedirect
gremmie@1 8 from django.http import HttpResponseBadRequest
gremmie@1 9 from django.http import HttpResponseForbidden
gremmie@1 10 from django.db.models import get_model
gremmie@1 11 from django.shortcuts import render_to_response
gremmie@1 12 from django.template import RequestContext
gremmie@1 13 from django.utils.html import escape
gremmie@1 14 from django.views.decorators.http import require_POST
gremmie@1 15
gremmie@1 16 from core.functions import email_admins
gremmie@1 17 from comments.forms import CommentForm
gremmie@1 18 from comments.models import Comment
gremmie@1 19 from comments.models import CommentFlag
gremmie@1 20
gremmie@1 21 @login_required
gremmie@1 22 @require_POST
gremmie@1 23 def post_comment(request):
gremmie@1 24 """
gremmie@1 25 This function handles the posting of comments. If successful, returns
gremmie@1 26 the comment text as the response. This function is mean't to be the target
gremmie@1 27 of an AJAX post.
gremmie@1 28 """
gremmie@1 29 # Look up the object we're trying to comment about
gremmie@1 30 ctype = request.POST.get('content_type', None)
gremmie@1 31 object_pk = request.POST.get('object_pk', None)
gremmie@1 32 if ctype is None or object_pk is None:
gremmie@1 33 return HttpResponseBadRequest('Missing content_type or object_pk field.')
gremmie@1 34
gremmie@1 35 try:
gremmie@1 36 model = get_model(*ctype.split('.', 1))
gremmie@1 37 target = model.objects.get(pk=object_pk)
gremmie@1 38 except TypeError:
gremmie@1 39 return HttpResponseBadRequest(
gremmie@1 40 "Invalid content_type value: %r" % escape(ctype))
gremmie@1 41 except AttributeError:
gremmie@1 42 return HttpResponseBadRequest(
gremmie@1 43 "The given content-type %r does not resolve to a valid model." % \
gremmie@1 44 escape(ctype))
gremmie@1 45 except ObjectDoesNotExist:
gremmie@1 46 return HttpResponseBadRequest(
gremmie@1 47 "No object matching content-type %r and object PK %r exists." % \
gremmie@1 48 (escape(ctype), escape(object_pk)))
gremmie@1 49
gremmie@1 50 # Can we comment on the target object?
gremmie@1 51 if hasattr(target, 'can_comment_on'):
gremmie@1 52 if callable(target.can_comment_on):
gremmie@1 53 can_comment_on = target.can_comment_on()
gremmie@1 54 else:
gremmie@1 55 can_comment_on = target.can_comment_on
gremmie@1 56 else:
gremmie@1 57 can_comment_on = True
gremmie@1 58
gremmie@1 59 if not can_comment_on:
gremmie@1 60 return HttpResponseForbidden('Cannot comment on this item.')
gremmie@1 61
gremmie@1 62 # Check form validity
gremmie@1 63
gremmie@1 64 form = CommentForm(target, request.POST)
gremmie@1 65 if not form.is_valid():
gremmie@1 66 return HttpResponseBadRequest('Invalid comment; missing parameters?')
gremmie@1 67
gremmie@1 68 # else, create and save the comment
gremmie@1 69
gremmie@1 70 comment = form.get_comment_object(request.user, request.META.get("REMOTE_ADDR", None))
gremmie@1 71 comment.save()
gremmie@1 72
gremmie@1 73 # return the rendered comment
gremmie@1 74 return render_to_response('comments/comment.html', {
gremmie@1 75 'comment': comment,
gremmie@1 76 },
gremmie@1 77 context_instance = RequestContext(request))
gremmie@1 78
gremmie@1 79
gremmie@1 80 @require_POST
gremmie@1 81 def flag_comment(request):
gremmie@1 82 """
gremmie@1 83 This function handles the flagging of comments by users. This function should
gremmie@1 84 be the target of an AJAX post.
gremmie@1 85 """
gremmie@1 86 if not request.user.is_authenticated():
gremmie@1 87 return HttpResponse('Please login or register to flag a comment.')
gremmie@1 88
gremmie@1 89 id = request.POST.get('id', None)
gremmie@1 90 if id is None:
gremmie@1 91 return HttpResponseBadRequest('No id')
gremmie@1 92
gremmie@1 93 try:
gremmie@1 94 comment = Comment.objects.get(pk=id)
gremmie@1 95 except Comment.DoesNotExist:
gremmie@1 96 return HttpResponseBadRequest('No comment with id %s' % id)
gremmie@1 97
gremmie@1 98 flag = CommentFlag(user=request.user, comment=comment)
gremmie@1 99 flag.save()
gremmie@1 100 email_admins('A Comment Has Been Flagged', """Hello,
gremmie@1 101
gremmie@1 102 A user has flagged a comment for review.
gremmie@1 103 """)
gremmie@1 104 return HttpResponse('The comment was flagged. A moderator will review the comment shortly. ' \
gremmie@1 105 'Thanks for helping to improve the discussions on this site.')
gremmie@1 106
gremmie@1 107
gremmie@1 108 @require_POST
gremmie@1 109 def markdown_preview(request):
gremmie@1 110 """
gremmie@1 111 This function should be the target of an AJAX POST. It takes the 'data' parameter
gremmie@1 112 from the POST parameters and returns a rendered HTML page from the data, which
gremmie@1 113 is assumed to be in markdown format. The HTML page is suitable for the preview
gremmie@1 114 function for a javascript editor such as markItUp.
gremmie@1 115 """
gremmie@1 116 if not request.user.is_authenticated():
gremmie@1 117 return HttpResponseForbidden('This service is only available to logged in users.')
gremmie@1 118
gremmie@1 119 data = request.POST.get('data', None)
gremmie@1 120 if data is None:
gremmie@1 121 return HttpResponseBadRequest('No data')
gremmie@1 122
gremmie@1 123 return render_to_response('comments/markdown_preview.html', {
gremmie@1 124 'data': data,
gremmie@1 125 },
gremmie@1 126 context_instance = RequestContext(request))