OperationalError at / no such column: count Request Method: GET Request URL: http://localhost:4050/ Exception Type: OperationalError Exception Value: no such column: count Exception Location: c:\checkout\dev_sandbox\django\django\db\backends\sqlite3\base.py in execute, line 92 Template error In template templates/index.html, error at line 1 Caught an exception while rendering: no such column: count 1 {{ object_list.count }} Traceback (innermost last) Switch to copy-and-paste view * c:\checkout\dev_sandbox\django\django\template\__init__.py in render_node 711. 712. def render_node(self, node, context): 713. return(node.render(context)) 714. 715. class DebugNodeList(NodeList): 716. def render_node(self, node, context): 717. try: 718. result = node.render(context) ... 719. except TemplateSyntaxError, e: 720. if not hasattr(e, 'source'): 721. e.source = node.source 722. raise 723. except Exception, e: 724. from sys import exc_info ? Local vars Variable Value context [{'object_list': [], 'params': {}}, {'LANGUAGES': (('ar', 'Arabic'), ('bn', 'Bengali'), ('ca', 'Catalan'), ('cs', 'Czech'), ('cy', 'Welsh'), ('da', 'Danish'), ('de', 'German'), ('el', 'Greek'), ('en', 'English'), ('es', 'Spanish'), ('es_AR', 'Argentinean Spanish'), ('fi', 'Finnish'), ('fr', 'French'), ('gl', 'Galician'), ('hu', 'Hungarian'), ('he', 'Hebrew'), ('is', 'Icelandic'), ('it', 'Italian'), ('ja', 'Japanese'), ('lv', 'Latvian'), ('mk', 'Macedonian'), ('nl', 'Dutch'), ('no', 'Norwegian'), ('pl', 'Polish'), ('pt-br', 'Brazilian'), ('ro', 'Romanian'), ('ru', 'Russian'), ('sk', 'Slovak'), ('sl', 'Slovenian'), ('sr', 'Serbian'), ('sv', 'Swedish'), ('ta', 'Tamil'), ('tr', 'Turkish'), ('uk', 'Ukrainian'), ('zh-cn', 'Simplified Chinese'), ('zh-tw', 'Traditional Chinese')), 'LANGUAGE_BIDI': False, 'LANGUAGE_CODE': 'en-us'}, {}, {'perms': , 'messages': [], 'user': }, {}] e exc_info node self [] wrapped * c:\checkout\dev_sandbox\django\django\template\__init__.py in render 761. def render(self, context): 762. output = self.filter_expression.resolve(context) 763. return self.encode_output(output) 764. 765. class DebugVariableNode(VariableNode): 766. def render(self, context): 767. try: 768. output = self.filter_expression.resolve(context) ... 769. except TemplateSyntaxError, e: 770. if not hasattr(e, 'source'): 771. e.source = self.source 772. raise 773. return self.encode_output(output) 774. ? Local vars Variable Value context [{'object_list': [], 'params': {}}, {'LANGUAGES': (('ar', 'Arabic'), ('bn', 'Bengali'), ('ca', 'Catalan'), ('cs', 'Czech'), ('cy', 'Welsh'), ('da', 'Danish'), ('de', 'German'), ('el', 'Greek'), ('en', 'English'), ('es', 'Spanish'), ('es_AR', 'Argentinean Spanish'), ('fi', 'Finnish'), ('fr', 'French'), ('gl', 'Galician'), ('hu', 'Hungarian'), ('he', 'Hebrew'), ('is', 'Icelandic'), ('it', 'Italian'), ('ja', 'Japanese'), ('lv', 'Latvian'), ('mk', 'Macedonian'), ('nl', 'Dutch'), ('no', 'Norwegian'), ('pl', 'Polish'), ('pt-br', 'Brazilian'), ('ro', 'Romanian'), ('ru', 'Russian'), ('sk', 'Slovak'), ('sl', 'Slovenian'), ('sr', 'Serbian'), ('sv', 'Swedish'), ('ta', 'Tamil'), ('tr', 'Turkish'), ('uk', 'Ukrainian'), ('zh-cn', 'Simplified Chinese'), ('zh-tw', 'Traditional Chinese')), 'LANGUAGE_BIDI': False, 'LANGUAGE_CODE': 'en-us'}, {}, {'perms': , 'messages': [], 'user': }, {}] self * c:\checkout\dev_sandbox\django\django\template\__init__.py in resolve 554. upto = match.end() 555. if upto != len(token): 556. raise TemplateSyntaxError, "Could not parse the remainder: %s" % token[upto:] 557. self.var, self.filters = var, filters 558. 559. def resolve(self, context, ignore_failures=False): 560. try: 561. obj = resolve_variable(self.var, context) ... 562. except VariableDoesNotExist: 563. if ignore_failures: 564. obj = None 565. else: 566. if settings.TEMPLATE_STRING_IF_INVALID: 567. return settings.TEMPLATE_STRING_IF_INVALID ? Local vars Variable Value context [{'object_list': [], 'params': {}}, {'LANGUAGES': (('ar', 'Arabic'), ('bn', 'Bengali'), ('ca', 'Catalan'), ('cs', 'Czech'), ('cy', 'Welsh'), ('da', 'Danish'), ('de', 'German'), ('el', 'Greek'), ('en', 'English'), ('es', 'Spanish'), ('es_AR', 'Argentinean Spanish'), ('fi', 'Finnish'), ('fr', 'French'), ('gl', 'Galician'), ('hu', 'Hungarian'), ('he', 'Hebrew'), ('is', 'Icelandic'), ('it', 'Italian'), ('ja', 'Japanese'), ('lv', 'Latvian'), ('mk', 'Macedonian'), ('nl', 'Dutch'), ('no', 'Norwegian'), ('pl', 'Polish'), ('pt-br', 'Brazilian'), ('ro', 'Romanian'), ('ru', 'Russian'), ('sk', 'Slovak'), ('sl', 'Slovenian'), ('sr', 'Serbian'), ('sv', 'Swedish'), ('ta', 'Tamil'), ('tr', 'Turkish'), ('uk', 'Ukrainian'), ('zh-cn', 'Simplified Chinese'), ('zh-tw', 'Traditional Chinese')), 'LANGUAGE_BIDI': False, 'LANGUAGE_CODE': 'en-us'}, {}, {'perms': , 'messages': [], 'user': }, {}] ignore_failures False self * c:\checkout\dev_sandbox\django\django\template\__init__.py in resolve_variable 639. elif path[0] in ('"', "'") and path[0] == path[-1]: 640. current = path[1:-1] 641. else: 642. current = context 643. bits = path.split(VARIABLE_ATTRIBUTE_SEPARATOR) 644. while bits: 645. try: # dictionary lookup 646. current = current[bits[0]] ... 647. except (TypeError, AttributeError, KeyError): 648. try: # attribute lookup 649. current = getattr(current, bits[0]) 650. if callable(current): 651. if getattr(current, 'alters_data', False): 652. current = settings.TEMPLATE_STRING_IF_INVALID ? Local vars Variable Value bits ['count'] context [{'object_list': [], 'params': {}}, {'LANGUAGES': (('ar', 'Arabic'), ('bn', 'Bengali'), ('ca', 'Catalan'), ('cs', 'Czech'), ('cy', 'Welsh'), ('da', 'Danish'), ('de', 'German'), ('el', 'Greek'), ('en', 'English'), ('es', 'Spanish'), ('es_AR', 'Argentinean Spanish'), ('fi', 'Finnish'), ('fr', 'French'), ('gl', 'Galician'), ('hu', 'Hungarian'), ('he', 'Hebrew'), ('is', 'Icelandic'), ('it', 'Italian'), ('ja', 'Japanese'), ('lv', 'Latvian'), ('mk', 'Macedonian'), ('nl', 'Dutch'), ('no', 'Norwegian'), ('pl', 'Polish'), ('pt-br', 'Brazilian'), ('ro', 'Romanian'), ('ru', 'Russian'), ('sk', 'Slovak'), ('sl', 'Slovenian'), ('sr', 'Serbian'), ('sv', 'Swedish'), ('ta', 'Tamil'), ('tr', 'Turkish'), ('uk', 'Ukrainian'), ('zh-cn', 'Simplified Chinese'), ('zh-tw', 'Traditional Chinese')), 'LANGUAGE_BIDI': False, 'LANGUAGE_CODE': 'en-us'}, {}, {'perms': , 'messages': [], 'user': }, {}] current [] path 'object_list.count' * c:\checkout\dev_sandbox\django\django\db\models\query.py in __getitem__ 141. 142. if k.step is None: 143. return self._clone(_offset=offset, _limit=limit) 144. else: 145. return list(self._clone(_offset=offset, _limit=limit))[::k.step] 146. else: 147. try: 148. return list(self._clone(_offset=k, _limit=1))[0] ... 149. except self.model.DoesNotExist, e: 150. raise IndexError, e.args 151. else: 152. return self._result_cache[k] 153. 154. def __and__(self, other): ? Local vars Variable Value k 'count' self [] * c:\checkout\dev_sandbox\django\django\db\models\query.py in __iter__ 100. def __repr__(self): 101. return repr(self._get_data()) 102. 103. def __len__(self): 104. return len(self._get_data()) 105. 106. def __iter__(self): 107. return iter(self._get_data()) ... 108. 109. def __getitem__(self, k): 110. "Retrieve an item or slice from the set of results." 111. assert (not isinstance(k, slice) and (k >= 0)) \ 112. or (isinstance(k, slice) and (k.start is None or k.start >= 0) and (k.stop is None or k.stop >= 0)), \ 113. "Negative indexing is not supported." ? Local vars Variable Value self Error in formatting:no such column: count * c:\checkout\dev_sandbox\django\django\db\models\query.py in _get_data 448. if (self._order_by is not None and len(self._order_by) > 0) and \ 449. (combined._order_by is None or len(combined._order_by) == 0): 450. combined._order_by = self._order_by 451. return combined 452. 453. def _get_data(self): 454. if self._result_cache is None: 455. self._result_cache = list(self.iterator()) ... 456. return self._result_cache 457. 458. def _get_sql_clause(self): 459. opts = self.model._meta 460. 461. # Construct the fundamental parts of the query: SELECT X FROM Y WHERE Z. ? Local vars Variable Value self Error in formatting:no such column: count * c:\checkout\dev_sandbox\django\django\db\models\query.py in iterator 173. raise StopIteration 174. 175. # self._select is a dictionary, and dictionaries' key order is 176. # undefined, so we convert it to a list of tuples. 177. extra_select = self._select.items() 178. 179. cursor = connection.cursor() 180. cursor.execute("SELECT " + (self._distinct and "DISTINCT " or "") + ",".join(select) + sql, params) ... 181. fill_cache = self._select_related 182. index_end = len(self.model._meta.fields) 183. while 1: 184. rows = cursor.fetchmany(GET_ITERATOR_CHUNK_SIZE) 185. if not rows: 186. raise StopIteration ? Local vars Variable Value cursor extra_select [] params [] select ['"testapp_article"."id"', '"testapp_article"."text"'] self Error in formatting:no such column: count sql ' FROM "testapp_article" LIMIT 1 OFFSET count ' * c:\checkout\dev_sandbox\django\django\db\backends\util.py in execute 5. def __init__(self, cursor, db): 6. self.cursor = cursor 7. self.db = db 8. 9. def execute(self, sql, params=()): 10. start = time() 11. try: 12. return self.cursor.execute(sql, params) ... 13. finally: 14. stop = time() 15. # If params was a list, convert it to a tuple, because string 16. # formatting with '%' only works with tuples or dicts. 17. if not isinstance(params, (tuple, dict)): 18. params = tuple(params) ? Local vars Variable Value params () self sql 'SELECT "testapp_article"."id","testapp_article"."text" FROM "testapp_article" LIMIT 1 OFFSET count ' start 1171920114.546 stop 1171920114.546 * c:\checkout\dev_sandbox\django\django\db\backends\sqlite3\base.py in execute 85. """ 86. Django uses "format" style placeholders, but pysqlite2 uses "qmark" style. 87. This fixes it -- but note that if you want to use a literal "%s" in a query, 88. you'll need to use "%%s". 89. """ 90. def execute(self, query, params=()): 91. query = self.convert_query(query, len(params)) 92. return Database.Cursor.execute(self, query, params) ... 93. 94. def executemany(self, query, param_list): 95. query = self.convert_query(query, len(param_list[0])) 96. return Database.Cursor.executemany(self, query, param_list) 97. 98. def convert_query(self, query, num_params): ? Local vars Variable Value params [] query 'SELECT "testapp_article"."id","testapp_article"."text" FROM "testapp_article" LIMIT 1 OFFSET count ' self