m

expobanner/forms.py

@@ -57,7 +57,7 @@ class BannerCreateForm(forms.ModelForm):
     text = forms.CharField(label=u'Текст', required=False, widget=CKEditorWidget)
     class Meta:
         model = Banner
-        exclude = ['created_at', 'updated_at', 'often', 'paid', 'stat_pswd', 'cookie', 'link']
+        exclude = ['created_at', 'updated_at', 'paid', 'stat_pswd', 'cookie', 'link']
 
 
 class CustomerCreateForm(forms.ModelForm):

expobanner/managers.py

@@ -53,7 +53,21 @@ class BannerGroupCached(models.Manager):
                                           .filter(public=True, fr__lte=today)\
                                           .filter(Q(to__gte=today) | Q(to__isnull=True)))
             cache.set(key, result, 70)
+        return result
 
+    def top_page_banners(self):
+        key = 'top_page_banners'
+        result = cache.get(key)
+        if not result:
+            try:
+                group = self.get(slug='top_page_banner', public=True)
+                today = date.today()
+                result = list(group.banners.prefetch_related('urls', 'theme', 'country')
+                              .filter(public=True, fr__lte=today)
+                              .filter(Q(to__gte=today) | Q(to__isnull=True)))
+            except self.DoesNotExist:
+                result = []
+            cache.set(key, result, 70)
         return result
 
 

expobanner/models.py

@@ -104,7 +104,9 @@ class Banner(models.Model, StatMixin):
     """
     objects = BiasedManager()
 
-    customer = models.ForeignKey(Customer, verbose_name=_(u'Заказчик'), null=True, blank=True)
+    customer = models.ForeignKey(Customer, verbose_name=_(u'Заказчик'), null=True, blank=True,
+         help_text=_(u'Работает для всех баннеров кроме верхнего.'),
+    )
     title = models.CharField(verbose_name=_(u'Заголовок'), max_length=255, blank=True)
     alt = models.CharField(verbose_name=_('Alt'), max_length=255)
 
@@ -119,10 +121,9 @@ class Banner(models.Model, StatMixin):
     sort = models.PositiveSmallIntegerField(verbose_name=_(u'Сорт'), default=500)
     group = models.ForeignKey(BannerGroup, related_name='banners', verbose_name=_(u'Место'), null=True, blank=True)
     often = models.PositiveSmallIntegerField(
-        verbose_name=_('Often'),
-        help_text=_('A ten will display 10 times more often that a one.'),
-        choices=[[i, i] for i in range(11)],
-        default=1
+        verbose_name=_(u'Частота показа'), default=1, null=True, blank=True,
+        help_text=_(u'Задается в %. 20 будет соответствовать 20% показа банера из всех просмотров. Работает только для верхнего банера.'),
+        # choices=[[i, i] for i in xrange(11)],
     )
     urls = models.ManyToManyField(URL, related_name='url_banners', verbose_name=_('URLs'), null=True, blank=True)
 

expobanner/utils.py

@@ -57,7 +57,19 @@ def set_cookie(response, key, value, days_expire = 7):
     return response
 
 
-def get_banner_by_params(banners_list, urls,  params, request):
+def random_choice_banners(banners):
+    '''
+    Include weight of customers model.
+    '''
+    choice_from = {}
+    for i, banner in enumerate(banners):
+        key = 'customer{pk}'.format(pk=banner.customer_id) if banner.customer_id else i
+        choice_from.setdefault(key, []).append(banner)
+    pre_choiced = random.choice(choice_from.values())
+    return random.choice(pre_choiced)
+
+
+def get_banner_by_params(banners_list, urls,  params, request, choicer=random_choice_banners):
     thematic_banners = []
     url_banners = []
 
@@ -94,13 +106,13 @@ def get_banner_by_params(banners_list, urls,  params, request):
         # check by url
         if urls:
             banner_urls = banner.urls.all()
-            print('number of queries = %d'%len(connection.queries))
+            # print('number of queries = %d'%len(connection.queries))
 
             if banner_urls:
 
                 banner_urls = set(banner_urls)
                 common_urls = set(urls).intersection(banner_urls)
-                print(banner, common_urls, banner_urls, urls)
+                # print(banner, common_urls, banner_urls, urls)
                 if common_urls:
                     url_banners.append(banner)
                     continue
@@ -114,23 +126,11 @@ def get_banner_by_params(banners_list, urls,  params, request):
     if result:
         sort_result = get_by_sort(result)
         # return random.choice(sort_result)
-        return random_choice_banners(sort_result)
+        return choicer(sort_result)
     else:
         return None
 
 
-def random_choice_banners(banners):
-    '''
-    Include weight of customers model.
-    '''
-    choice_from = {}
-    for i, banner in enumerate(banners):
-        key = 'customer{pk}'.format(pk=banner.customer_id) if banner.customer_id else i
-        choice_from.setdefault(key, []).append(banner)
-    pre_choiced = random.choice(choice_from.values())
-    return random.choice(pre_choiced)
-
-
 def get_top_events(tops, params, request):
     catalog = params.get('catalog')
     country = params.get('country', '')

settings/templatetags/tempalte_tags.py

@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 import datetime
 import re
+from numpy.random import choice
 
 from django import template
 from django.utils.translation import ugettext as _
@@ -121,47 +122,58 @@ def get_top_banner(context):
         elif url == u.url:
             good_urls.append(u)
 
-    group_banners = BannerGroup.cached.group_banners()
-    result = {}
+    banners = BannerGroup.cached.top_page_banners()
     cookie = None
-    places = ['top_page_banner']
-    for group, banners in group_banners.iteritems():
-        if group not in places:
-            continue
-        banner = get_banner_by_params(banners, good_urls, params, request)
-        # import pdb; pdb.set_trace() # on this page there is no such group
-        if banner:
-            if banner.html:
-                text = banner.text
-                img = ''
-                alt = ''
-                is_img = False
-            else:
-                text = ''
-                try:
-                    img = banner.img.url
-                except ValueError:
-                    continue
-                alt = banner.alt
-                is_img = True
-            result = {'id': group,
-                      'url': banner.get_click_link(),
-                      'is_html': banner.html,
-                      'is_flash': banner.flash,
-                      'is_img': is_img,
-                      'is_popup': banner.popup,
-                      'img': img,
-                      'alt': alt,
-                      'text': text
-                      }
-            if banner.popup:
-                cookie = banner.cookie
-            # add view log
-            banner.log(request, 1)
+    result = {}
+    banner = get_banner_by_params(banners, good_urls, params, request, choicer=random_choice_top_banners)
+    if banner:
+        if banner.html:
+            text = banner.text
+            img = ''
+            alt = ''
+            is_img = False
+        else:
+            text = ''
+            try:
+                img = banner.img.url
+            except ValueError:
+                return {}
+            alt = banner.alt
+            is_img = True
+        result = {'url': banner.get_click_link(),
+                  'is_html': banner.html,
+                  'is_flash': banner.flash,
+                  'is_img': is_img,
+                  'is_popup': banner.popup,
+                  'img': img,
+                  'alt': alt,
+                  'text': text,
+                  }
+        if banner.popup:
+            cookie = banner.cookie
+        # add view log
+        banner.log(request, 1)
 
     return result
 
 
+def random_choice_top_banners(banners):
+    '''
+    Include weight of often.
+    '''
+    p = [float(x.often or 1)/100 for x in banners]
+    if sum(p) < 1:
+        p.append(1-sum(p))
+        banners.append('nobanner')
+    elif sum(p) > 1:
+        _p , _p_sum = p, sum(p)
+        p = [1/_p_sum*x for x in _p]
+    banner = choice(banners, 1, p=p).item()
+    if banner == 'nobanner':
+        banner = None
+    return banner
+
+
 register.tag('set', set_var)
 register.tag('get_date', get_date)
 register.tag('get_date_reverse', get_date_reverse)

templates/c_admin/expobanner/default_form.html

@@ -59,6 +59,7 @@
                     <label class="control-label">{% if field.field.required %}<b>{{ field.label }}:</b>{% else %}{{ field.label }}{% endif %}</label>
                         <div class="controls">{{ field }}
                             <span class="help-inline">{{  field.errors }}</span>
+                            <p class="help-block">{{ field.help_text }}</p>
                         </div>
                 </div>
             {% endfor %}