Something like list_detail generic view but returns PDF document instead

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
from django.template import loader, RequestContext
from django.http import Http404, HttpResponse
from django.core.paginator import ObjectPaginator, InvalidPage
from django.core.exceptions import ObjectDoesNotExist
import StringIO
import ho.pisa as pisa

def object_list(request, queryset, paginate_by=None, page=None,
        allow_empty=False, template_name=None, template_loader=loader,
        extra_context=None, context_processors=None, template_object_name='object',
        mimetype=None):
    """
    Builds PDF document from generic list of objects.

    Templates: ``<app_label>/<model_name>_list.html``
    Context:
        object_list
            list of objects
        is_paginated
            are the results paginated?
        results_per_page
            number of objects per page (if paginated)
        has_next
            is there a next page?
        has_previous
            is there a prev page?
        page
            the current page
        next
            the next page
        previous
            the previous page
        pages
            number of pages, total
        hits
            number of objects, total
        last_on_page
            the result number of the last of object in the
            object_list (1-indexed)
        first_on_page
            the result number of the first object in the
            object_list (1-indexed)
    """
    if extra_context is None: extra_context = {}
    queryset = queryset._clone()
    if paginate_by:
        paginator = ObjectPaginator(queryset, paginate_by)
        if not page:
            page = request.GET.get('page', 1)
        try:
            page = int(page)
            object_list = paginator.get_page(page - 1)
        except (InvalidPage, ValueError):
            if page == 1 and allow_empty:
                object_list = []
            else:
                raise Http404
        c = RequestContext(request, {
            '%s_list' % template_object_name: object_list,
            'is_paginated': paginator.pages > 1,
            'results_per_page': paginate_by,
            'has_next': paginator.has_next_page(page - 1),
            'has_previous': paginator.has_previous_page(page - 1),
            'page': page,
            'next': page + 1,
            'previous': page - 1,
            'last_on_page': paginator.last_on_page(page - 1),
            'first_on_page': paginator.first_on_page(page - 1),
            'pages': paginator.pages,
            'hits' : paginator.hits,
        }, context_processors)
    else:
        c = RequestContext(request, {
            '%s_list' % template_object_name: queryset,
            'is_paginated': False
        }, context_processors)
        if not allow_empty and len(queryset) == 0:
            raise Http404
    for key, value in extra_context.items():
        if callable(value):
            c[key] = value()
        else:
            c[key] = value
    if not template_name:
        model = queryset.model
        template_name = "%s/%s_list.html" % (model._meta.app_label, model._meta.object_name.lower())
    t = template_loader.get_template(template_name)
    html = t.render(c)
    result = StringIO.StringIO()
    pdf = pisa.pisaDocument(StringIO.StringIO(html), result, encoding='UTF-8')
    if not pdf.err:
        return HttpResponse(result.getvalue(), mimetype='application/pdf')
    else:
        raise Http404

def object_detail(request, queryset, object_id=None, slug=None,
        slug_field=None, template_name=None, template_name_field=None,
        template_loader=loader, extra_context=None,
        context_processors=None, template_object_name='object',
        mimetype=None):
    """
    Builds PDF document from generic detail of an object.

    Templates: ``<app_label>/<model_name>_detail.html``
    Context:
        object
            the object
    """
    if extra_context is None: extra_context = {}
    model = queryset.model
    if object_id:
        queryset = queryset.filter(pk=object_id)
    elif slug and slug_field:
        queryset = queryset.filter(**{slug_field: slug})
    else:
        raise AttributeError, "Generic detail view must be called with either an object_id or a slug/slug_field."
    try:
        obj = queryset.get()
    except ObjectDoesNotExist:
        raise Http404, "No %s found matching the query" % (model._meta.verbose_name)
    if not template_name:
        template_name = "%s/%s_detail.html" % (model._meta.app_label, model._meta.object_name.lower())
    if template_name_field:
        template_name_list = [getattr(obj, template_name_field), template_name]
        t = template_loader.select_template(template_name_list)
    else:
        t = template_loader.get_template(template_name)
    c = RequestContext(request, {
        template_object_name: obj,
    }, context_processors)
    for key, value in extra_context.items():
        if callable(value):
            c[key] = value()
        else:
            c[key] = value
    t = template_loader.get_template(template_name)
    html = t.render(c)
    result = StringIO.StringIO()
    pdf = pisa.pisaDocument(StringIO.StringIO(html), result, encoding='UTF-8')
    if not pdf.err:
        return HttpResponse(result.getvalue(), mimetype='application/pdf')
    else:
        raise Http404
    return response

More like this

  1. Basic PDF view mixin and utils using reportlab. by elequ 9 months ago
  2. Create PDF files using rml and django templates by mporrato 6 years, 9 months ago
  3. Create nice looking PDFs from developer documentation by henning 6 years, 4 months ago
  4. pyText2Pdf - Python script to convert plain text into PDF file. Modified to work with streams. by vsergeyev 4 years, 5 months ago
  5. RML2PDF with Django by meitham 4 years ago

Comments

(Forgotten your password?)