thêm tính năng hiển thị độ khó cho từng problem #25

judge/admin/problem.py

@@ -123,11 +123,11 @@ def has_permission_full_markup(self, request, obj=None):
 class ProblemAdmin(NoBatchDeleteMixin, VersionAdmin):
     fieldsets = (
         (None, {
-            'fields': (
+            'fields': (0
                 'code', 'name', 'suggester', 'is_public', 'is_manually_managed', 'date', 'authors',
                 'curators', 'testers', 'is_organization_private', 'organizations', 'submission_source_visibility_mode',
                 'testcase_visibility_mode', 'testcase_result_visibility_mode', 'allow_view_feedback',
-                'is_full_markup', 'pdf_url', 'source', 'description', 'license',
+                'is_full_markup', 'pdf_url', 'source', 'description', 'license', 'difficulty',
             ),
         }),
         (_('Social Media'), {'classes': ('collapse',), 'fields': ('og_image', 'summary')}),
@@ -138,7 +138,7 @@ class ProblemAdmin(NoBatchDeleteMixin, VersionAdmin):
         (_('Justice'), {'fields': ('banned_users',)}),
         (_('History'), {'fields': ('change_message',)}),
     )
-    list_display = ['code', 'name', 'show_authors', 'points', 'is_public', 'show_public']
+    list_display = ['code', 'name', 'show_authors', 'points', 'difficulty', 'is_public', 'show_public']
     ordering = ['code']
     search_fields = ('code', 'name', 'authors__user__username', 'curators__user__username')
     inlines = [LanguageLimitInline, ProblemClarificationInline, ProblemSolutionInline, ProblemTranslationInline]

judge/forms.py

@@ -205,7 +205,7 @@ def clean_statement_file(self):
         content = self.files.get('statement_file', None)
         if content is not None:
             if content.size > settings.PDF_STATEMENT_MAX_FILE_SIZE:
-                raise forms.ValidationError(_('File size is too big! Maximum file size is %s') %
+                raise forms.ValidationError(_('File size is too big! Maximum file size is %s') % 
                                             filesizeformat(settings.PDF_STATEMENT_MAX_FILE_SIZE),
                                             'big_file_size')
             if self.user and not self.user.has_perm('judge.upload_file_statement'):
@@ -222,10 +222,16 @@ def clean_time_limit(self):
                                         % settings.VNOJ_PROBLEM_TIMELIMIT_LIMIT,
                                         'problem_timelimit_too_long')
         return self.cleaned_data['time_limit']
+
+    # def clean_difficulty(self):
+    #     difficulty = self.cleaned_data.get('difficulty')
+    #     if difficulty and difficulty not in ['easy', 'medium', 'hard']:
+    #         raise forms.ValidationError(_('Invalid difficulty level. Please choose from Easy, Medium, or Hard.'))
+    #     return difficulty
 
     class Meta:
         model = Problem
-        fields = ['is_public', 'code', 'name', 'time_limit', 'memory_limit', 'points', 'partial',
+        fields = ['is_public', 'code', 'name', 'time_limit', 'memory_limit', 'points', 'difficulty', 'partial',
                   'statement_file', 'source', 'types', 'group', 'submission_source_visibility_mode',
                   'testcase_visibility_mode', 'description', 'testers']
         widgets = {
@@ -250,6 +256,7 @@ class Meta:
             'points': _('Points awarded for problem completion. From 0 to 2. '
                         'You can approximate: 0.5 is as hard as Problem 1 of VOI; 1 = Problem 2 of VOI; '
                         '1.5 = Problem 3 of VOI.'),
+            'difficulty': _('Difficulty level of the problem: Easy, Medium, or Hard.')
         }
         error_messages = {
             'code': {
@@ -258,6 +265,7 @@ class Meta:
         }
 
 
+
 class ProblemImportPolygonForm(Form):
     code = CharField(max_length=32, validators=[RegexValidator('^[a-z0-9_]+$', _('Problem code must be ^[a-z0-9_]+$'))])
     package = forms.FileField(

judge/models/problem.py

@@ -143,6 +143,13 @@ class Problem(models.Model):
     name = models.CharField(max_length=100, verbose_name=_('problem name'), db_index=True,
                             help_text=_('The full name of the problem, as shown in the problem list.'),
                             validators=[disallowed_characters_validator])
+    difficulty = models.CharField(
+        max_length=20,
+        choices=[('easy', 'Easy'), ('medium', 'Medium'), ('hard', 'Hard')],
+        default='easy', 
+        verbose_name=_('Difficulty'),
+        help_text=_('Difficulty level of the problem: Easy, Medium, or Hard.')
+    )
     pdf_url = models.CharField(max_length=200, verbose_name=_('PDF statement URL'), blank=True,
                                help_text=_('URL to PDF statement. The PDF file must be embeddable (Mobile web browsers'
                                            'may not support embedding). Fallback included.'))

templates/problem/list.html

@@ -12,6 +12,15 @@
         #problem-table th {
             padding: 0;
         }
+        .rectangle {
+            display: inline-block; 
+            padding: 2px 15px; 
+            border: 0px solid #000; 
+            border-radius: 20px;
+            background-color: #87ee00;
+            color: #87c500;
+            float: right;
+        }
     </style>
 {% endblock %}
 
@@ -224,6 +233,16 @@ <h3>{{ _('Hot problems') }} <i class="fa fa-fire"></i></h3>
                         </td>
                         <td class="problem-name">
                             <a href="{{ url('problem_detail', problem.code) }}">{{ problem.i18n_name or problem.name }}</a>
+                            <div class="rectangle" 
+                                {% if problem.difficulty == 'easy' %} 
+                                style="background-color: #00ff6a5d; color: #00ff00;"
+                                {% elif problem.difficulty == 'medium' %}
+                                    style="background-color: #2700945d; color: #0011ff;" 
+                                {% elif problem.difficulty == 'hard' %}
+                                    style="background-color: #ff00005d; color: #f10000;" 
+                                {% endif %}>
+                                {{ problem.difficulty|capfirst }}
+                            </div>
                         </td>
                         <td class="category">{{ problem.group.full_name }}</td>
                         {% if show_types %}

templates/problem/problem.html

@@ -75,6 +75,7 @@
 {% endblock %}
 
 {% block title_row %}
+
     <div class="problem-title">
         {% if request.user.is_authenticated %}
             {% if problem.id in completed_problem_ids %}
@@ -213,6 +214,10 @@ <h2 style="display: inline-block">{{ title }}</h2>
             {% endif %}
         </span>
     </div>
+    <div class="problem-info-entry">
+        <i class="fa fa-signal fa-fw"></i><span class="pi-name">{{ _('Difficulty:') }}</span>
+        <span class="pi-value">{{ problem.difficulty|capfirst }}</span>
+    </div>  
     <div class="problem-info-entry">
         <i class="fa fa-clock-o fa-fw"></i><span class="pi-name">{{ _('Time limit:') }}</span>
         <span class="pi-value">{{ problem.time_limit }}s</span>

templates/stats/base.html

@@ -0,0 +1,15 @@
+{% extends "base.html" %}
+
+{% block js_media %}
+  {% compress js %}
+    {% include "stats/media-js.html" %}
+  {% endcompress %}
+{% endblock %}
+
+{% block content_title %}{% endblock %}
+{% block title_ruler %}{% endblock %}
+
+{% block body %}
+  {% include "stats/tab.html" %}
+  {% block chart_body %}{% endblock %}
+{% endblock %}

templates/stats/language.html

@@ -0,0 +1,45 @@
+{% extends "stats/base.html" %}
+{% block media %}
+  <style>
+    .chart {
+      margin: 10px 0;
+    }
+  </style>
+{% endblock %}
+
+{% block chart_body %}
+  <h3>{{ _('Submission Statistics') }}</h3>
+  <div id="status-counts" class="chart">
+    <canvas width="400" height="300"></canvas>
+  </div>
+
+  <h3>{{ _('Submissions by Language') }}</h3>
+  <div id="lang-all" class="chart">
+    <canvas width="400" height="300"></canvas>
+  </div>
+
+  <h3>{{ _('AC Submissions by Language') }}</h3>
+  <div id="lang-ac" class="chart">
+    <canvas width="400" height="300"></canvas>
+  </div>
+
+  <h3>{{ _('Language AC Rate') }}</h3>
+  <div id="ac-rate" class="chart">
+    <canvas><canvas>
+    </div>
+{% endblock %}
+
+{% block bodyend %}
+  <script type="text/javascript">
+    $(function () {
+      Chart.defaults.global.scaleFontFamily =
+        Chart.defaults.global.tooltipFontFamily =
+        Chart.defaults.global.tooltipTitleFontFamily =
+        $('body').css('font-family');
+      draw_pie_chart({{ data_all }}, $('#lang-all'));
+      draw_pie_chart({{ lang_ac }}, $('#lang-ac'));
+      draw_pie_chart({{ status_counts }}, $('#status-counts'));
+      draw_bar_chart({{ ac_rate }}, $('#ac-rate'));
+    });
+  </script>
+{% endblock %}