fix reset statistics call if there are no statistics yet

rhodecode/model/repo.py

@@ -1,705 +1,705 b''
 # -*- coding: utf-8 -*-
 """
     rhodecode.model.repo
     ~~~~~~~~~~~~~~~~~~~~
 
     Repository model for rhodecode
 
     :created_on: Jun 5, 2010
     :author: marcink
     :copyright: (C) 2010-2012 Marcin Kuzminski <[e-mail]>
     :license: GPLv3, see COPYING for more details.
 """
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 from __future__ import with_statement
 import os
 import shutil
 import logging
 import traceback
 from datetime import datetime
 
 from rhodecode.lib.vcs.backends import get_backend
 from rhodecode.lib.compat import json
 from rhodecode.lib.utils2 import LazyProperty, safe_str, safe_unicode,\
     remove_prefix
 from rhodecode.lib.caching_query import FromCache
 from rhodecode.lib.hooks import log_create_repository, log_delete_repository
 
 from rhodecode.model import BaseModel
 from rhodecode.model.db import Repository, UserRepoToPerm, User, Permission, \
     Statistics, UsersGroup, UsersGroupRepoToPerm, RhodeCodeUi, RepoGroup,\
     RhodeCodeSetting, RepositoryField
 from rhodecode.lib import helpers as h
 from rhodecode.lib.auth import HasRepoPermissionAny
 from rhodecode.lib.vcs.backends.base import EmptyChangeset
 
 
 log = logging.getLogger(__name__)
 
 
 class RepoModel(BaseModel):
 
     cls = Repository
     URL_SEPARATOR = Repository.url_sep()
 
     def __get_users_group(self, users_group):
         return self._get_instance(UsersGroup, users_group,
                                   callback=UsersGroup.get_by_group_name)
 
     def _get_repos_group(self, repos_group):
         return self._get_instance(RepoGroup, repos_group,
                                   callback=RepoGroup.get_by_group_name)
 
     @LazyProperty
     def repos_path(self):
         """
         Get's the repositories root path from database
         """
 
         q = self.sa.query(RhodeCodeUi).filter(RhodeCodeUi.ui_key == '/').one()
         return q.ui_value
 
     def get(self, repo_id, cache=False):
         repo = self.sa.query(Repository)\
             .filter(Repository.repo_id == repo_id)
 
         if cache:
             repo = repo.options(FromCache("sql_cache_short",
                                           "get_repo_%s" % repo_id))
         return repo.scalar()
 
     def get_repo(self, repository):
         return self._get_repo(repository)
 
     def get_by_repo_name(self, repo_name, cache=False):
         repo = self.sa.query(Repository)\
             .filter(Repository.repo_name == repo_name)
 
         if cache:
             repo = repo.options(FromCache("sql_cache_short",
                                           "get_repo_%s" % repo_name))
         return repo.scalar()
 
     def get_all_user_repos(self, user):
         """
         Get's all repositories that user have at least read access
 
         :param user:
         :type user:
         """
         from rhodecode.lib.auth import AuthUser
         user = self._get_user(user)
         repos = AuthUser(user_id=user.user_id).permissions['repositories']
         access_check = lambda r: r[1] in ['repository.read',
                                           'repository.write',
                                           'repository.admin']
         repos = [x[0] for x in filter(access_check, repos.items())]
         return Repository.query().filter(Repository.repo_name.in_(repos))
 
     def get_users_js(self):
         users = self.sa.query(User).filter(User.active == True).all()
         return json.dumps([
             {
              'id': u.user_id,
              'fname': u.name,
              'lname': u.lastname,
              'nname': u.username,
              'gravatar_lnk': h.gravatar_url(u.email, 14)
             } for u in users]
         )
 
     def get_users_groups_js(self):
         users_groups = self.sa.query(UsersGroup)\
             .filter(UsersGroup.users_group_active == True).all()
 
         return json.dumps([
             {
              'id': gr.users_group_id,
              'grname': gr.users_group_name,
              'grmembers': len(gr.members),
             } for gr in users_groups]
         )
 
     @classmethod
     def _render_datatable(cls, tmpl, *args, **kwargs):
         import rhodecode
         from pylons import tmpl_context as c
         from pylons.i18n.translation import _
 
         _tmpl_lookup = rhodecode.CONFIG['pylons.app_globals'].mako_lookup
         template = _tmpl_lookup.get_template('data_table/_dt_elements.html')
 
         tmpl = template.get_def(tmpl)
         kwargs.update(dict(_=_, h=h, c=c))
         return tmpl.render(*args, **kwargs)
 
     @classmethod
     def update_repoinfo(cls, repositories=None):
         if not repositories:
             repositories = Repository.getAll()
         for repo in repositories:
             scm_repo = repo.scm_instance_no_cache
             last_cs = EmptyChangeset()
             if scm_repo:
                 last_cs = scm_repo.get_changeset()
             repo.update_changeset_cache(last_cs)
 
     def get_repos_as_dict(self, repos_list=None, admin=False, perm_check=True,
                           super_user_actions=False):
         _render = self._render_datatable
 
         def quick_menu(repo_name):
             return _render('quick_menu', repo_name)
 
         def repo_lnk(name, rtype, private, fork_of):
             return _render('repo_name', name, rtype, private, fork_of,
                            short_name=not admin, admin=False)
 
         def last_change(last_change):
             return _render("last_change", last_change)
 
         def rss_lnk(repo_name):
             return _render("rss", repo_name)
 
         def atom_lnk(repo_name):
             return _render("atom", repo_name)
 
         def last_rev(repo_name, cs_cache):
             return _render('revision', repo_name, cs_cache.get('revision'),
                            cs_cache.get('raw_id'), cs_cache.get('author'),
                            cs_cache.get('message'))
 
         def desc(desc):
             from pylons import tmpl_context as c
             if c.visual.stylify_metatags:
                 return h.urlify_text(h.desc_stylize(h.truncate(desc, 60)))
             else:
                 return h.urlify_text(h.truncate(desc, 60))
 
         def repo_actions(repo_name):
             return _render('repo_actions', repo_name, super_user_actions)
 
         def owner_actions(user_id, username):
             return _render('user_name', user_id, username)
 
         repos_data = []
         for repo in repos_list:
             if perm_check:
                 # check permission at this level
                 if not HasRepoPermissionAny(
                     'repository.read', 'repository.write', 'repository.admin'
                 )(repo.repo_name, 'get_repos_as_dict check'):
                     continue
             cs_cache = repo.changeset_cache
             row = {
                 "menu": quick_menu(repo.repo_name),
                 "raw_name": repo.repo_name.lower(),
                 "name": repo_lnk(repo.repo_name, repo.repo_type,
                                  repo.private, repo.fork),
                 "last_change": last_change(repo.last_db_change),
                 "last_changeset": last_rev(repo.repo_name, cs_cache),
                 "raw_tip": cs_cache.get('revision'),
                 "desc": desc(repo.description),
                 "owner": h.person(repo.user.username),
                 "rss": rss_lnk(repo.repo_name),
                 "atom": atom_lnk(repo.repo_name),
 
             }
             if admin:
                 row.update({
                     "action": repo_actions(repo.repo_name),
                     "owner": owner_actions(repo.user.user_id,
                                            h.person(repo.user.username))
                 })
             repos_data.append(row)
 
         return {
             "totalRecords": len(repos_list),
             "startIndex": 0,
             "sort": "name",
             "dir": "asc",
             "records": repos_data
         }
 
     def _get_defaults(self, repo_name):
         """
         Get's information about repository, and returns a dict for
         usage in forms
 
         :param repo_name:
         """
 
         repo_info = Repository.get_by_repo_name(repo_name)
 
         if repo_info is None:
             return None
 
         defaults = repo_info.get_dict()
         group, repo_name = repo_info.groups_and_repo
         defaults['repo_name'] = repo_name
         defaults['repo_group'] = getattr(group[-1] if group else None,
                                          'group_id', None)
 
         for strip, k in [(0, 'repo_type'), (1, 'repo_enable_downloads'),
                   (1, 'repo_description'), (1, 'repo_enable_locking'),
                   (1, 'repo_landing_rev'), (0, 'clone_uri'),
                   (1, 'repo_private'), (1, 'repo_enable_statistics')]:
             attr = k
             if strip:
                 attr = remove_prefix(k, 'repo_')
 
             defaults[k] = defaults[attr]
 
         # fill owner
         if repo_info.user:
             defaults.update({'user': repo_info.user.username})
         else:
             replacement_user = User.query().filter(User.admin ==
                                                    True).first().username
             defaults.update({'user': replacement_user})
 
         # fill repository users
         for p in repo_info.repo_to_perm:
             defaults.update({'u_perm_%s' % p.user.username:
                              p.permission.permission_name})
 
         # fill repository groups
         for p in repo_info.users_group_to_perm:
             defaults.update({'g_perm_%s' % p.users_group.users_group_name:
                              p.permission.permission_name})
 
         return defaults
 
     def update(self, org_repo_name, **kwargs):
         try:
             cur_repo = self.get_by_repo_name(org_repo_name, cache=False)
 
             # update permissions
             for member, perm, member_type in kwargs['perms_updates']:
                 if member_type == 'user':
                     # this updates existing one
                     RepoModel().grant_user_permission(
                         repo=cur_repo, user=member, perm=perm
                     )
                 else:
                     RepoModel().grant_users_group_permission(
                         repo=cur_repo, group_name=member, perm=perm
                     )
             # set new permissions
             for member, perm, member_type in kwargs['perms_new']:
                 if member_type == 'user':
                     RepoModel().grant_user_permission(
                         repo=cur_repo, user=member, perm=perm
                     )
                 else:
                     RepoModel().grant_users_group_permission(
                         repo=cur_repo, group_name=member, perm=perm
                     )
 
             if 'user' in kwargs:
                 cur_repo.user = User.get_by_username(kwargs['user'])
 
             if 'repo_group' in kwargs:
                 cur_repo.group = RepoGroup.get(kwargs['repo_group'])
 
             for strip, k in [(0, 'repo_type'), (1, 'repo_enable_downloads'),
                       (1, 'repo_description'), (1, 'repo_enable_locking'),
                       (1, 'repo_landing_rev'), (0, 'clone_uri'),
                       (1, 'repo_private'), (1, 'repo_enable_statistics')]:
                 if k in kwargs:
                     val = kwargs[k]
                     if strip:
                         k = remove_prefix(k, 'repo_')
                     setattr(cur_repo, k, val)
 
             new_name = cur_repo.get_new_name(kwargs['repo_name'])
             cur_repo.repo_name = new_name
 
             #handle extra fields
             for field in filter(lambda k: k.startswith(RepositoryField.PREFIX), kwargs):
                 k = RepositoryField.un_prefix_key(field)
                 ex_field = RepositoryField.get_by_key_name(key=k, repo=cur_repo)
                 if ex_field:
                     ex_field.field_value = kwargs[field]
                     self.sa.add(ex_field)
             self.sa.add(cur_repo)
 
             if org_repo_name != new_name:
                 # rename repository
                 self.__rename_repo(old=org_repo_name, new=new_name)
 
             return cur_repo
         except:
             log.error(traceback.format_exc())
             raise
 
     def create_repo(self, repo_name, repo_type, description, owner,
                     private=False, clone_uri=None, repos_group=None,
                     landing_rev='tip', just_db=False, fork_of=None,
                     copy_fork_permissions=False, enable_statistics=False,
                     enable_locking=False, enable_downloads=False):
         """
         Create repository
 
         """
         from rhodecode.model.scm import ScmModel
 
         owner = self._get_user(owner)
         fork_of = self._get_repo(fork_of)
         repos_group = self._get_repos_group(repos_group)
         try:
 
             # repo name is just a name of repository
             # while repo_name_full is a full qualified name that is combined
             # with name and path of group
             repo_name_full = repo_name
             repo_name = repo_name.split(self.URL_SEPARATOR)[-1]
 
             new_repo = Repository()
             new_repo.enable_statistics = False
             new_repo.repo_name = repo_name_full
             new_repo.repo_type = repo_type
             new_repo.user = owner
             new_repo.group = repos_group
             new_repo.description = description or repo_name
             new_repo.private = private
             new_repo.clone_uri = clone_uri
             new_repo.landing_rev = landing_rev
 
             new_repo.enable_statistics = enable_statistics
             new_repo.enable_locking = enable_locking
             new_repo.enable_downloads = enable_downloads
 
             if repos_group:
                 new_repo.enable_locking = repos_group.enable_locking
 
             if fork_of:
                 parent_repo = fork_of
                 new_repo.fork = parent_repo
 
             self.sa.add(new_repo)
 
             def _create_default_perms():
                 # create default permission
                 repo_to_perm = UserRepoToPerm()
                 default = 'repository.read'
                 for p in User.get_by_username('default').user_perms:
                     if p.permission.permission_name.startswith('repository.'):
                         default = p.permission.permission_name
                         break
 
                 default_perm = 'repository.none' if private else default
 
                 repo_to_perm.permission_id = self.sa.query(Permission)\
                         .filter(Permission.permission_name == default_perm)\
                         .one().permission_id
 
                 repo_to_perm.repository = new_repo
                 repo_to_perm.user_id = User.get_by_username('default').user_id
 
                 self.sa.add(repo_to_perm)
 
             if fork_of:
                 if copy_fork_permissions:
                     repo = fork_of
                     user_perms = UserRepoToPerm.query()\
                         .filter(UserRepoToPerm.repository == repo).all()
                     group_perms = UsersGroupRepoToPerm.query()\
                         .filter(UsersGroupRepoToPerm.repository == repo).all()
 
                     for perm in user_perms:
                         UserRepoToPerm.create(perm.user, new_repo,
                                               perm.permission)
 
                     for perm in group_perms:
                         UsersGroupRepoToPerm.create(perm.users_group, new_repo,
                                                     perm.permission)
                 else:
                     _create_default_perms()
             else:
                 _create_default_perms()
 
             if not just_db:
                 self.__create_repo(repo_name, repo_type,
                                    repos_group,
                                    clone_uri)
                 log_create_repository(new_repo.get_dict(),
                                       created_by=owner.username)
 
             # now automatically start following this repository as owner
             ScmModel(self.sa).toggle_following_repo(new_repo.repo_id,
                                                     owner.user_id)
             return new_repo
         except:
             log.error(traceback.format_exc())
             raise
 
     def create(self, form_data, cur_user, just_db=False, fork=None):
         """
         Backward compatibility function, just a wrapper on top of create_repo
 
         :param form_data:
         :param cur_user:
         :param just_db:
         :param fork:
         """
         owner = cur_user
         repo_name = form_data['repo_name_full']
         repo_type = form_data['repo_type']
         description = form_data['repo_description']
         private = form_data['repo_private']
         clone_uri = form_data.get('clone_uri')
         repos_group = form_data['repo_group']
         landing_rev = form_data['repo_landing_rev']
         copy_fork_permissions = form_data.get('copy_permissions')
         fork_of = form_data.get('fork_parent_id')
 
         ## repo creation defaults, private and repo_type are filled in form
         defs = RhodeCodeSetting.get_default_repo_settings(strip_prefix=True)
         enable_statistics = defs.get('repo_enable_statistics')
         enable_locking = defs.get('repo_enable_locking')
         enable_downloads = defs.get('repo_enable_downloads')
 
         return self.create_repo(
             repo_name, repo_type, description, owner, private, clone_uri,
             repos_group, landing_rev, just_db, fork_of, copy_fork_permissions,
             enable_statistics, enable_locking, enable_downloads
         )
 
     def create_fork(self, form_data, cur_user):
         """
         Simple wrapper into executing celery task for fork creation
 
         :param form_data:
         :param cur_user:
         """
         from rhodecode.lib.celerylib import tasks, run_task
         run_task(tasks.create_repo_fork, form_data, cur_user)
 
     def delete(self, repo):
         repo = self._get_repo(repo)
         if repo:
             old_repo_dict = repo.get_dict()
             owner = repo.user
             try:
                 self.sa.delete(repo)
                 self.__delete_repo(repo)
                 log_delete_repository(old_repo_dict,
                                       deleted_by=owner.username)
             except:
                 log.error(traceback.format_exc())
                 raise
 
     def grant_user_permission(self, repo, user, perm):
         """
         Grant permission for user on given repository, or update existing one
         if found
 
         :param repo: Instance of Repository, repository_id, or repository name
         :param user: Instance of User, user_id or username
         :param perm: Instance of Permission, or permission_name
         """
         user = self._get_user(user)
         repo = self._get_repo(repo)
         permission = self._get_perm(perm)
 
         # check if we have that permission already
         obj = self.sa.query(UserRepoToPerm)\
             .filter(UserRepoToPerm.user == user)\
             .filter(UserRepoToPerm.repository == repo)\
             .scalar()
         if obj is None:
             # create new !
             obj = UserRepoToPerm()
         obj.repository = repo
         obj.user = user
         obj.permission = permission
         self.sa.add(obj)
         log.debug('Granted perm %s to %s on %s' % (perm, user, repo))
 
     def revoke_user_permission(self, repo, user):
         """
         Revoke permission for user on given repository
 
         :param repo: Instance of Repository, repository_id, or repository name
         :param user: Instance of User, user_id or username
         """
 
         user = self._get_user(user)
         repo = self._get_repo(repo)
 
         obj = self.sa.query(UserRepoToPerm)\
             .filter(UserRepoToPerm.repository == repo)\
             .filter(UserRepoToPerm.user == user)\
             .scalar()
         if obj:
             self.sa.delete(obj)
             log.debug('Revoked perm on %s on %s' % (repo, user))
 
     def grant_users_group_permission(self, repo, group_name, perm):
         """
         Grant permission for users group on given repository, or update
         existing one if found
 
         :param repo: Instance of Repository, repository_id, or repository name
         :param group_name: Instance of UserGroup, users_group_id,
             or users group name
         :param perm: Instance of Permission, or permission_name
         """
         repo = self._get_repo(repo)
         group_name = self.__get_users_group(group_name)
         permission = self._get_perm(perm)
 
         # check if we have that permission already
         obj = self.sa.query(UsersGroupRepoToPerm)\
             .filter(UsersGroupRepoToPerm.users_group == group_name)\
             .filter(UsersGroupRepoToPerm.repository == repo)\
             .scalar()
 
         if obj is None:
             # create new
             obj = UsersGroupRepoToPerm()
 
         obj.repository = repo
         obj.users_group = group_name
         obj.permission = permission
         self.sa.add(obj)
         log.debug('Granted perm %s to %s on %s' % (perm, group_name, repo))
 
     def revoke_users_group_permission(self, repo, group_name):
         """
         Revoke permission for users group on given repository
 
         :param repo: Instance of Repository, repository_id, or repository name
         :param group_name: Instance of UserGroup, users_group_id,
             or users group name
         """
         repo = self._get_repo(repo)
         group_name = self.__get_users_group(group_name)
 
         obj = self.sa.query(UsersGroupRepoToPerm)\
             .filter(UsersGroupRepoToPerm.repository == repo)\
             .filter(UsersGroupRepoToPerm.users_group == group_name)\
             .scalar()
         if obj:
             self.sa.delete(obj)
             log.debug('Revoked perm to %s on %s' % (repo, group_name))
 
     def delete_stats(self, repo_name):
         """
         removes stats for given repo
 
         :param repo_name:
         """
+        repo = self._get_repo(repo_name)
         try:
             obj = self.sa.query(Statistics)\
-                    .filter(Statistics.repository ==
-                            self.get_by_repo_name(repo_name))\
-                    .one()
-            self.sa.delete(obj)
+                    .filter(Statistics.repository == repo).scalar()
+            if obj:
+                self.sa.delete(obj)
         except:
             log.error(traceback.format_exc())
             raise
 
     def __create_repo(self, repo_name, alias, parent, clone_uri=False):
         """
         makes repository on filesystem. It's group aware means it'll create
         a repository within a group, and alter the paths accordingly of
         group location
 
         :param repo_name:
         :param alias:
         :param parent_id:
         :param clone_uri:
         """
         from rhodecode.lib.utils import is_valid_repo, is_valid_repos_group
         from rhodecode.model.scm import ScmModel
 
         if parent:
             new_parent_path = os.sep.join(parent.full_path_splitted)
         else:
             new_parent_path = ''
 
         # we need to make it str for mercurial
         repo_path = os.path.join(*map(lambda x: safe_str(x),
                                 [self.repos_path, new_parent_path, repo_name]))
 
         # check if this path is not a repository
         if is_valid_repo(repo_path, self.repos_path):
             raise Exception('This path %s is a valid repository' % repo_path)
 
         # check if this path is a group
         if is_valid_repos_group(repo_path, self.repos_path):
             raise Exception('This path %s is a valid group' % repo_path)
 
         log.info('creating repo %s in %s @ %s' % (
                      repo_name, safe_unicode(repo_path), clone_uri
                 )
         )
         backend = get_backend(alias)
         if alias == 'hg':
             backend(repo_path, create=True, src_url=clone_uri)
         elif alias == 'git':
             r = backend(repo_path, create=True, src_url=clone_uri, bare=True)
             # add rhodecode hook into this repo
             ScmModel().install_git_hook(repo=r)
         else:
             raise Exception('Undefined alias %s' % alias)
 
     def __rename_repo(self, old, new):
         """
         renames repository on filesystem
 
         :param old: old name
         :param new: new name
         """
         log.info('renaming repo from %s to %s' % (old, new))
 
         old_path = os.path.join(self.repos_path, old)
         new_path = os.path.join(self.repos_path, new)
         if os.path.isdir(new_path):
             raise Exception(
                 'Was trying to rename to already existing dir %s' % new_path
             )
         shutil.move(old_path, new_path)
 
     def __delete_repo(self, repo):
         """
         removes repo from filesystem, the removal is acctually made by
         added rm__ prefix into dir, and rename internat .hg/.git dirs so this
         repository is no longer valid for rhodecode, can be undeleted later on
         by reverting the renames on this repository
 
         :param repo: repo object
         """
         rm_path = os.path.join(self.repos_path, repo.repo_name)
         log.info("Removing %s" % (rm_path))
         # disable hg/git internal that it doesn't get detected as repo
         alias = repo.repo_type
 
         bare = getattr(repo.scm_instance, 'bare', False)
 
         if not bare:
             # skip this for bare git repos
             shutil.move(os.path.join(rm_path, '.%s' % alias),
                         os.path.join(rm_path, 'rm__.%s' % alias))
         # disable repo
         _now = datetime.now()
         _ms = str(_now.microsecond).rjust(6, '0')
         _d = 'rm__%s__%s' % (_now.strftime('%Y%m%d_%H%M%S_' + _ms),
                              repo.just_name)
         if repo.group:
             args = repo.group.full_path_splitted + [_d]
             _d = os.path.join(*args)
         shutil.move(rm_path, os.path.join(self.repos_path, _d))