| Commit message (Collapse) | Author | Age | Files | Lines |
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This matches our behavior in other cases where useful enumerable methods
might have a different definition in `Relation`. Wanting to actually
enumerate over the records in this case is completely reasonable, and
wanting `.sum` is reasonable for the same reason it is on `Enumerable`
in the first place.
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Allow Enumerable#pluck to take a splat.
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This allows easier integration with ActiveRecord, such that
AR#pluck will now use Enumerable#pluck if the relation is loaded,
without needing to hit the database.
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Our general contract in Active Record is that strings are assumed to be
SQL literals, and symbols are assumed to reference a column. If a from
clause is given, we shouldn't include the table name, but we should
still quote the value as if it were a column.
Upon fixing this, the tests were still failing on SQLite. This was
because the column name being returned by the query was `"\"join\""`
instead of `"join"`. This is actually a bug in SQLite that was fixed a
long time ago, but I was using the version of SQLite included by OS X
which has this bug. Since I'm guessing this will be a common case for
contributors, I also added an explicit check with a more helpful error
message.
Fixes #20360
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Properly append preload / includes args on Merger
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Couldn't find other way to get the association name from a given class
other than looping through `reflect_on_all_associations` reflections ..
Noticed this one while looking at this example:
```ruby
class Product < ActiveRecord::Base
has_many :variants
has_many :translations
end
class Translation < ActiveRecord::Base
belongs_to :product
end
class Variant < ActiveRecord::Base
belongs_to :product
end
class BugTest < Minitest::Test
def test_merge_stuff
product = Product.create! name: 'huhu'
variant = Variant.create! product_id: product.id
Translation.create! locale: 'en', product_id: product.id
product_relation = Product.all
.preload(:translations)
.joins(:translations)
.merge(Translation.where(locale: 'en'))
.where(name: 'huhu')
assert_equal variant, Variant.joins(:product).merge(product_relation).first
end
end
```
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See #9683 for the reasons we switched to `distinct`.
Here is the discussion that triggered the actual deprecation #20198.
`uniq`, `uniq!` and `uniq_value` are still around.
They will be removed in the next minor release after Rails 5.
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Stems from https://github.com/rails/rails/pull/20105#issuecomment-100900939
where @senny said:
> From my point of view, all the docs (guides, API) are version bound.
> They should describe that version and continue to be available when newer versions are released.
> The cross referencing can be done by the interested user.
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Now that master points at Rails 5, we might not need to explain how
things used to work in Rails 3. Or we might… up to you :grin:
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Fix unscope for less than
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Code such as the following will be corrected.
Developer.where(id: -Float::INFINITY...2).unscope(where: :id)
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Raise ArgumentError when find_by receives no arguments
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It fixes the strange error saying undefined method `take'.
```
RelationTest#test_find_by_without_arg_behaves_same_with_find_by({}):
NoMethodError: undefined method `take' for #<ActiveRecord::QueryMethods::WhereChain:0x007f9c55db1d68>
```
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This reverts commit 524d40591eaa2f4d007409bfad386f6b107492eb, reversing
changes made to 34d3a6095100245283861ef480a54d0643bbee4c.
Reasoning behind the revert are in the PR discussion:
https://github.com/rails/rails/pull/19755
- This means that types can no longer cast to/from `Set`, and reasonably
work with `where` (we already have this problem for `array`/`json`
types on pg)
- This adds precedent for every other `Enumerable`, and we can't target
`Enumerable` directly.
- Calling `to_a` on a `Set` is reasonable.
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Previously `#where` used to treat `Set`objects as nil, but now it treats
them as an array:
set = Set.new([1, 2])
Author.where(:id => set)
# => SELECT "authors".* FROM "authors" WHERE "authors"."id" IN (1, 2)
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Documentation is giving an example that can be replaced by a more dry command.
Give a hint that ids can be used instead of pluck(:id).
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- ‘dection’ -> ‘detection’
- ‘exceeds threshold’ -> ‘exceeds the threshold’
- Other minor improvements.
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When set to an integer, a warning will be logged whenever a result set
larger than the specified size is returned by a query. Fixes #16463
The warning is outputed a module which is prepended in an initializer,
so there will be no performance impact if
`config.active_record.warn_on_records_fetched_greater_than` is not set.
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association
While joining table of has_many :through association, ActiveRecord will
use the actual table name instead of through-join alias. It results with
a wrong SQL and exception is raised. This only happens when calculation
methods like #count is called.
This issue is affecting Rails 4.1.x and 4.2.x as well.
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It is redundant with tests in `eager_loading?`, but for the difference
between `includes_values.present?` and `includes_values.any?`, which
is a difference without a distinction because `false` has no meaning
for `includes`.
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[ci skip]
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parts out of active_support.
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from_clause in bdc5141652770fd227455681cde1f9899f55b0b9
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Fix appending table_name to select and group when used with subquery (fr...
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favour of `begin_at` value.
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that complements the `start`parameter to specify where to stop batch processing
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nil or false should not be valid argument to the merge method.
Closes #12264
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We already validate the keys, so it is better to use the built-in
feature to do this
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While we query the proper columns, we go through normal handling for
converting the value to a primitive which assumes it should use the
table's primary key. If the association specifies a different value (and
we know that we're working with an association), we should use the
custom primary key instead.
Fixes #18813.
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It's finally finished!!!!!!! The reason the Attributes API was kept
private in 4.2 was due to some publicly visible implementation details.
It was previously implemented by overloading `columns` and
`columns_hash`, to make them return column objects which were modified
with the attribute information.
This meant that those methods LIED! We didn't change the database
schema. We changed the attribute information on the class. That is
wrong! It should be the other way around, where schema loading just
calls the attributes API for you. And now it does!
Yes, this means that there is nothing that happens in automatic schema
loading that you couldn't manually do yourself. (There's still some
funky cases where we hit the connection adapter that I need to handle,
before we can turn off automatic schema detection entirely.)
There were a few weird test failures caused by this that had to be
fixed. The main source came from the fact that the attribute methods are
now defined in terms of `attribute_names`, which has a clause like
`return [] unless table_exists?`. I don't *think* this is an issue,
since the only place this caused failures were in a fake adapter which
didn't override `table_exists?`.
Additionally, there were a few cases where tests were failing because a
migration was run, but the model was not reloaded. I'm not sure why
these started failing from this change, I might need to clear an
additional cache in `reload_schema_from_cache`. Again, since this is not
normal usage, and it's expected that `reset_column_information` will be
called after the table is modified, I don't think it's a problem.
Still, test failures that were unrelated to the change are worrying, and
I need to dig into them further.
Finally, I spent a lot of time debugging issues with the mutex used in
`define_attribute_methods`. I think we can just remove that method
entirely, and define the attribute methods *manually* in the call to
`define_attribute`, which would simplify the code *tremendously*.
Ok. now to make this damn thing public, and work on moving it up to
Active Model.
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Fixes #18717
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Post.where('id = 1').or(Post.where('id = 2'))
# => SELECT * FROM posts WHERE (id = 1) OR (id = 2)
[Matthew Draper & Gael Muller]
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`bound_attributes` is now used universally across the board, removing
the need for the conversion layer. These changes are mostly mechanical,
with the exception of the log subscriber. Additional, we had to
implement `hash` on the attribute objects, so they could be used as a
key for query caching.
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The column is primarily used for type casting, which we're trying to
separate from the idea of a column. Since what we really need is the
combination of a name, type, and value, let's use the object that we
already have to represent that concept, rather than this tuple. No
consumers of the bind values have been changed, only the producers
(outside of tests which care too much about internals). This is
*finally* possible since the bind values are now produced from a
reasonable number of lcoations.
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Attempting to grok this code by refactoring it as I go through it.
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The only place it was accessed was in tests. Many of them have another
way that they can test their behavior, that doesn't involve reaching
into internals as far as they did. `AssociationScopeTest` is testing a
situation where the where clause would have one bind param per
predicate, so it can just ignore the predicates entirely. The where
chain test was primarly duplicating the logic tested on `WhereClause`
directly, so I instead just make sure it calls the appropriate method
which is fully tested in isolation.
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The bind values can come from four places. `having`, `where`, `joins`,
and `from` when selecting from a subquery that contains binds. These
need to be kept in a specific order, since the clauses will always
appear in that order. Up until recently, they were not.
Additionally, `joins` actually did keep its bind values in a separate
location (presumably because it's the only case that people noticed was
broken). However, this meant that anything accessing just `bind_values`
was broken (which most places were). This is no longer possible, there
is only a single way to access the bind values, and it includes joins in
the proper location. The setter was removed yesterday, so breaking `+=`
cases is not possible.
I'm still not happy that `joins` is putting it's bind values on the
Arel AST, and I'm planning on refactoring it further, but this removes a
ton of bug cases.
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Contrary to my previous commit message, it wasn't overkill, and led to
much cleaner code.
[Sean Griffin & anthonynavarre]
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The last place that was assigning it was when `from` is called with a
relation to use as a subquery. The implementation was actually
completely broken, and would break if you called `from` more than once,
or if you called it on a relation, which also had its own join clause,
as the bind values would get completely scrambled. The simplest solution
was to just move it into its own array, since creating a `FromClause`
class for this would be overkill.
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