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This commit introduces the usage of Common Table Expressions (CTEs) to
efficiently retrieve nested group hierarchies, without having to rely on
the "routes" table (which is an _incredibly_ inefficient way of getting
the data). This requires a patch to ActiveRecord (found in the added
initializer) to work properly as ActiveRecord doesn't support WITH
statements properly out of the box.
Unfortunately MySQL provides no efficient way of getting nested groups.
For example, the old routes setup could easily take 5-10 seconds
depending on the amount of "routes" in a database. Providing vastly
different logic for both MySQL and PostgreSQL will negatively impact the
development process. Because of this the various nested groups related
methods return empty relations when used in combination with MySQL.
For project authorizations the logic is split up into two classes:
* Gitlab::ProjectAuthorizations::WithNestedGroups
* Gitlab::ProjectAuthorizations::WithoutNestedGroups
Both classes get the fresh project authorizations (= as they should be
in the "project_authorizations" table), including nested groups if
PostgreSQL is used. The logic of these two classes is quite different
apart from their public interface. This complicates development a bit,
but unfortunately there is no way around this.
This commit also introduces Gitlab::GroupHierarchy. This class can be
used to get the ancestors and descendants of a base relation, or both by
using a UNION. This in turn is used by methods such as:
* Namespace#ancestors
* Namespace#descendants
* User#all_expanded_groups
Again this class relies on CTEs and thus only works on PostgreSQL. The
Namespace methods will return an empty relation when MySQL is used,
while User#all_expanded_groups will return only the groups a user is a
direct member of.
Performance wise the impact is quite large. For example, on GitLab.com
Namespace#descendants used to take around 580 ms to retrieve data for a
particular user. Using CTEs we are able to reduce this down to roughly 1
millisecond, returning the exact same data.
== On The Fly Refreshing
Refreshing of authorizations on the fly (= when
users.authorized_projects_populated was not set) is removed with this
commit. This simplifies the code, and ensures any queries used for
authorizations are not mutated because they are executed in a Rails
scope (e.g. Project.visible_to_user).
This commit includes a migration to schedule refreshing authorizations
for all users, ensuring all of them have their authorizations in place.
Said migration schedules users in batches of 5000, with 5 minutes
between every batch to smear the load around a bit.
== Spec Changes
This commit also introduces some changes to various specs. For example,
some specs for ProjectTeam assumed that creating a personal project
would _not_ lead to the owner having access, which is incorrect. Because
we also no longer refresh authorizations on the fly for new users some
code had to be added to the "empty_project" factory. This chunk of code
ensures that the owner's permissions are refreshed after creating the
project, something that is normally done in Projects::CreateService.
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Signed-off-by: Rémy Coutable <remy@rymai.me>
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`Project` uses `ProjectPathValidator` which is now a
`NamespaceValidator` that skips the format validation.
That way we're sure we are using the same collection of reserved
paths.
I updated the path constraints to reflect the changes: We now allow
some values that are only used on a top level namespace as a name for
a nested group/project.
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# Conflicts:
# spec/models/group_spec.rb
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This ensures that project authorizations are refreshed when moving a
project from one namespace to another. When doing so the permissions for
all users of both the old and new namespaces are refreshed.
See #26194 for more information.
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Backport changes introduced by https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/1078
See merge request !8657
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Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
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https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/1083
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Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
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Use build instead create in group spec
See merge request !8068
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Merge Request - https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/8013
# Conflicts:
# db/schema.rb
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Currently namespace name and path have uniq validaiton which does not
allow us to use same group name/path inside different groups. This
commit changes validation in next way:
* Allow same namespace name with different parent_id
* Allow same namespace path. Uniq validation should be handled by routes table
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
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Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
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required
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than "/twitter".""
This reverts commit 9dbd5b3cfad10b214ae5ef27c39246bbb74a5077.
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"/twitter"."
This reverts commit c81ff152e08d58c13efbd50c40dd2e083ac65083.
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Bring back the old behaviour which was changed by 6b90ccb9.
Fixes #23527.
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And create new Project#requesters, Group#requesters scopes.
Signed-off-by: Rémy Coutable <remy@rymai.me>
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This allows the owners to be eager loaded where needed.
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+ Move 'Edit Project/Group' out of membership-related partial
+ Show the access request buttons only to logged-in users
+ Put the request access buttons out of in a more visible button
+ Improve the copy in the #remove_member_message helper
Signed-off-by: Rémy Coutable <remy@rymai.me>
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Signed-off-by: Rémy Coutable <remy@rymai.me>
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In 8278b763d96ef10c6494409b18b7eb541463af29 the default behaviour of annotation
has changes, which was causing a lot of noise in diffs. We decided in #17382
that it is better to get rid of the whole annotate gem, and instead let people
look at schema.rb for the columns in a table.
Fixes: #17382
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These methods will be used to get a list of groups, optionally
restricted to only those visible to a given user.
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Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
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Now there is a single source of information for which attribute a model
uses to be referenced, and its special character.
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Signed-off-by: Jeroen van Baarsen <jeroenvanbaarsen@gmail.com>
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Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
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Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
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Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
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