| Commit message (Collapse) | Author | Age | Files | Lines |
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SQL statements for querying associations are now cached
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* master: (70 commits)
[ci skip] Added link to ruby-lang.org installation.
Use the index on hidden field
`collection_check_boxes` respects `:index` option for the hidden filed name.
docs, double meaning of `serialize` argument. Closes #14284.
Just call read_attribute, no need to use `send`.
- Fix lingering reference to `:text` instead of the newer `:plain` - Section references `form_tag` instead of the `form_for` used in the example
again, read_attribute is public, so just call it
read_attribute is public, so we should just call it
Disable assest cache store in docs [ci skip]
Make counter cache decrementation on destroy idempotent
Write the failing test case for concurrent counter cache
[ci skip] Use plain underscore instead of "\_".
Update documentation to use Rails.application instead
Add a changelog entry for #14546 [ci skip]
Move tests for deep_dup and duplicable to object directory
Missing 'are' in note - [ci skip]
CollectionHelpers now accepts a readonly option
Fix a few typos [ci skip]
Bundle tzinfo-data on :x64_mingw (64-bit Ruby on Windows).
don't bother with an offset if the offset is zero
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* master: (122 commits)
Rails.application should be set inside before_configuration hook
remove check for present? from delete_all
Remove useless begin..end
Build the reverse_order on its proper method.
Use connection-specific bytea escaping
Ignore order when doing count.
make enums distinct per class
Remove unused `subclass_controller_with_flash_type_bar` var from flash test.
fix CollectionProxy delete_all documentation
Added OS X specific commands to installation guide [ci skip] Recommended using homebrew for installing MySQL and PostgreSQL
Fix setup of adding _flash_types test.
Use SVG version of travis build status badge [skip ci]
W3C CSP document moved to gihub.io URL [ci skip]
sprockets-rails was released
Fix the test defining the models in the right place
Add CHANGELOG entry for #11650 [ci skip]
Declare the assets dependency
Use sass-rails 4.0.3
Make possible to use sprockets-rails 2.1
add missing parentheses to validates_with documentation [skip ci]
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* master: (96 commits)
clarify CHANGELOG [ci skip].
Fix Generation of proper migration when ActiveRecord::Base.pluralize_table_names = false.
update comments to reflect that options support is not available
synchronize changelogs and 4.1 release notes. [ci skip]
do not rely on method_missing hitting arel
use ARel factory methods for building AST nodes
Fix date_select option overwriting html classes
- Rename `increment_or_decrement` to an apt `set_cache_value` since it actually doesn't increment/decrement in localstore.
Check if any sqlite files are not included in the gitignore
Remove sqlite3 lines from .gitignore if the application is not using sqlite3.
Adding active_model in Rails::Info
Clean up tables after each test.
Swapped parameters of assert_equal in assert_select
Update test helper to use latest Digestor API
Digestor should just rely on the finder to know about the format and the variant -- trying to pass it back in makes a mess of things (oh, and doesnt work)
Log the full path, including variant, that the digestor is trying to find
Fix for digestor to consider variants for partials -- this still needs more testing!!
fix log_tags request object grammar
Extract with_example_table into helper method.
test for structure:dump without schema information table. refs eafec46
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Conflicts:
activerecord/test/cases/relation/where_chain_test.rb
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[fixes #14361]
[related #13886]
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* master: (311 commits)
Add a missing changelog entry for #13981 and #14035
Revert "Fixed plugin_generator test"
implements new option :month_format_string for date select helpers [Closes #13618]
add factory methods for empty alias trackers
guarantee a list in the alias tracker so we can remove a conditional
stop exposing table_joins
make most parameters to the AliasTracker required
make a singleton for AssociationScope
pass the association and connection to the scope method
pass the tracker down the stack and construct it in the scope method
clean up add_constraints signature
remove the reflection delegate
remove klass delegator
remove railties changes. fixes #14054
remove chain delegate
remove scope_chain delegate
Add verb to sanitization note
fix path shown in mailer's templates
updated Travis build status image url
fix guide active_support_core_extensions. add Note to String#indent [ci skip]
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Conflicts:
activerecord/lib/active_record/associations/join_dependency.rb
activerecord/test/cases/associations/association_scope_test.rb
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This was a common pattern:
```
query = author.posts.select(:title)
connection.select_one(query)
```
However `.select` returns a ActiveRecord::AssociationRelation, which has
the bind information, so we can use that to get the right sql query.
Also fix select_rows on postgress and sqlite3 that were not using the binds
[fixes #7538]
[fixes #12017]
[related #13731]
[related #12056]
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This reverts commit 026d0555685087845b74dd87a0417b5a164b1c13.
Conflicts:
activerecord/lib/active_record/fixtures.rb
Fixes #13383
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deprecated already.
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When the adapter is with prepared statement disabled and the binds array
is not empty the connection adapter will try to set the binds values and
will fail. Now we are checking if the adapter has the prepared statement
disabled.
Fixes #12023
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This reverts commit 71ff7d9c6592b93e2c810a1f464943dd7bd02c7f.
Reason: I need to check with @jeremy if we can do this.
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The visitor have to consume the bind parameters to make the statements
work when the prepared statement option is disabled.
Fixes #12023
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The select_all method always returns ActiveRecord::Result instance,
and the ActiveRecord::Result includes Enumerable mixin.
If #empty?, #first method returns nil. Thus we can simplify this method.
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http://www.sqlite.org/lang_savepoint.html
https://github.com/rails/rails/blob/master/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb#L130-L132
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When inserting new records, only the fields which have been changed
from the defaults will actually be included in the INSERT statement.
The other fields will be populated by the database.
This is more efficient, and also means that it will be safe to
remove database columns without getting subsequent errors in running
app processes (so long as the code in those processes doesn't
contain any references to the removed column).
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If your database supports setting the isolation level for a transaction,
you can set it like so:
Post.transaction(isolation: :serializable) do
# ...
end
Valid isolation levels are:
* `:read_uncommitted`
* `:read_committed`
* `:repeatable_read`
* `:serializable`
You should consult the documentation for your database to understand the
semantics of these different levels:
* http://www.postgresql.org/docs/9.1/static/transaction-iso.html
* https://dev.mysql.com/doc/refman/5.0/en/set-transaction.html
An `ActiveRecord::TransactionIsolationError` will be raised if:
* The adapter does not support setting the isolation level
* You are joining an existing open transaction
* You are creating a nested (savepoint) transaction
The mysql, mysql2 and postgresql adapters support setting the
transaction isolation level. However, support is disabled for mysql
versions below 5, because they are affected by a bug
(http://bugs.mysql.com/bug.php?id=39170) which means the isolation level
gets persisted outside the transaction.
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This method was first seen in 045713ee240fff815edb5962b25d668512649478,
and subsequently reimplemented in
fb2325e35855d62abd2c76ce03feaa3ca7992e4f.
According to @jeremy, this is okay to remove. He thinks it was added
because at the time we didn't have much transaction state to keep track
of, and he viewed it as a hack for us to track it internally, thinking
it was better to ask the connection for the transaction state.
Over the years we have added more and more state to track, a lot of
which is impossible to ask the connection for. So it seems that this is
just a relic of the passed and we will just track the state internally
only.
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The caller needs to have knowledge of the rollback either way, so do it
all in the caller (#transaction)
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This avoids us having to manually increment and decrement it.
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during a"
This reverts commit c24c885209ac2334dc6f798c394a821ee270bec6.
Here's the explanation I just sent to @tenderlove:
Hey,
I've been thinking about about the transaction memory leak thing that we
were discussing.
Example code:
post = nil
Post.transaction do
N.times { post = Post.create }
end
Post.transaction is going to create a real transaction and there will
also be a (savepoint) transaction inside each Post.create.
In an idea world, we'd like all but the last Post instance to be GC'd,
and for the last Post instance to receive its after_commit callback when
Post.transaction returns.
I can't see how this can work using your solution where the Post itself
holds a reference to the transaction it is in; when Post.transaction
returns, control does not switch to any of Post's instance methods, so
it can't trigger the callbacks itself.
What we really want is for the transaction itself to hold weak
references to the objects within the transaction. So those objects can
be GC'd, but if they are not GC'd then the transaction can iterate them
and execute their callbacks.
I've looked into WeakRef implementations that are available. On 1.9.3,
the stdlib weakref library is broken and we shouldn't use it.
There is a better implementation here:
https://github.com/bdurand/ref/blob/master/lib/ref/weak_reference/pure_ruby.rb
We could use that, either by pulling in the gem or just copying the code
in, but it still suffers from the limitation that it uses ObjectSpace
finalizers.
In my testing, this finalizers make GC quite expensive:
https://gist.github.com/3722432
Ruby 2.0 will have a native WeakRef implementation (via
ObjectSpace::WeakMap), hence won't be reliant on finalizers:
http://bugs.ruby-lang.org/issues/4168
So the ultimate solution will be for everyone to use Ruby 2.0, and for
us to just use ObjectSpace::WeakMap.
In the meantime, we have basically 3 options:
The first is to leave it as it is.
The second is to use a finalizer-based weakref implementation and take
the GC perf hit.
The final option is to store object ids rather than the actual objects.
Then use ObjectSpace._id2ref to deference the objects at the end of the
transaction, if they exist. This won't stop memory use growing within
the transaction, but it'll grow more slowly.
I benchmarked the performance of _id2ref this if the object does or does
not exist: https://gist.github.com/3722550
If it does exist it seems decent, but it's hugely more expensive if it
doesn't, probably because we have to do the rescue nil.
Probably most of the time the objects will exist. However the point of
doing this optimisation is to allow people to create a large number of
objects inside a transaction and have them be GC'd. So for that use
case, we'd be replacing one problem with another. I'm not sure which of
the two problems is worse.
My feeling is that we should just leave this for now and come back to it
when Ruby 2.0 is out.
I'm going to revert your commit because I can't see how it solves this.
Hope you don't mind... if I've misunderstood then let me know!
Jon
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transaction.
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