| Commit message (Collapse) | Author | Age | Files | Lines |
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Conflicts:
activerecord/lib/active_record/associations/preloader/through_association.rb
activerecord/test/cases/associations/eager_test.rb
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if the association already holds that record in memory before checking
the database for the specified ids.
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Change from each to each_value;drop assignment in habtm
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2. drop assignment of value to sum in test
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the primary key on an association will make sure that the corresponding
counter on the association is changed properly. Fixes #9722.
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We moved more and more away from passing options to finder / calculation
methods. The `:distinct` option in `#count` was one of the remaining places.
Since we can now combine `Relation#distinct` with `Relation#count` the option
is no longer necessary and can be deprecated.
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The similarity of `Relation#uniq` to `Array#uniq` is confusing. Since our
Relation API is close to SQL terms I renamed `#uniq` to `#distinct`.
There is no deprecation. `#uniq` and `#uniq!` are aliases and will continue
to work. I also updated the documentation to promote the use of `#distinct`.
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Fixes #9275.
When `#order` is called with a Symbol this patch will prepend the quoted_table_name.
Before the postgresql adapter failed to build queries containg a join and an order
with a symbol.
This expansion happens for all adapters.
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closes #8663.
When preloading a hmt association there two possible scenarios:
1.) preload with 2 queries: first hm association, then hmt with id IN ()
2.) preload with join: hmt association is loaded with a join on the hm association
The bug was happening in scenario 1.) with a normal order clause on the hmt association.
The ordering was also applied when loading the hm association, which resulted in the error.
This patch only applies the ordering the the hm-relation if we are performing a join (2).
Otherwise the order will only appear in the second query (1).
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closes #9201
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closes #8423.
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This caused a bug with the new associations implementation, because now
association conditions are represented as Arel nodes internally right up
to when the whole thing gets turned to SQL.
In Rails 3.2, association conditions get turned to raw SQL early on,
which prevents Relation#merge from interfering.
The current implementation was buggy when a default_scope existed on the
target model, since we would basically end up doing:
default_scope.merge(association_scope)
If default_scope contained a where(foo: 'a') and association_scope
contained a where(foo: 'b').where(foo: 'c') then the merger would see
that the same column is representated on both sides of the merge and
collapse the wheres to all but the last: where(foo: 'c')
Now, the RHS of the merge is left alone.
Fixes #8990
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because of an ambiguous column name. This happened if the association
model had a default scope that referenced a third table, and the third
table also referenced the original table (with an identical
foreign_key).
Mysql requires that ambiguous columns are deambiguated by using the full
table.column syntax. Postgresql and Sqlite use a different syntax for
updates altogether (and don't tolerate table.name syntax), so the fix
requires always including the full table.column and discarding it later
for Sqlite and Postgresql.
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https://github.com/rails/rails/commit/4beb4dececcf10c642c74fbcb8548c833e921a86#commitcomment-2482869
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This reverts commit 637a7d9d357a0f3f725b0548282ca8c5e7d4af4a, reversing
changes made to 5937bd02dee112646469848d7fe8a8bfcef5b4c1.
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Replace deprecated find_by_* with find_by
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Suggested by @dhh.
It doesn't affect the generated SQL, so seems reasonable to continue to
allow it as an association option.
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Fixes #8795
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Correct source for in_clause_length for eager loading (Fix for #8474)
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(fixes #8474)
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They don't add any benefits over `assert object.blank?`
and `assert object.present?`
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This commit fixes a bug introduced in 96a13fc7 which breaks behaviour of
integer fields.
In 3.2.8, setting the value of an integer field to a non-integer (eg.
Array, Hash, etc.) would default to 1 (true) :
# 3.2.8
p = Post.new
p.category_id = [ 1, 2 ]
p.category_id # => 1
p.category_id = { 3 => 4 }
p.category_id # => 1
In 3.2.9 and above, this will raise a NoMethodError :
# 3.2.9
p = Post.new
p.category_id = [ 1, 2 ]
NoMethodError: undefined method `to_i' for [1, 2]:Array
Whilst at first blush this appear to be sensible, it combines in bad
ways with scoping.
For example, it is common to use scopes to control access to data :
@collection = Posts.where(:category_id => [ 1, 2 ])
@new_post = @collection.new
In 3.2.8, this would work as expected, creating a new Post object
(albeit with @new_post.category_id = 1). However, in 3.2.9 this will
cause the NoMethodError to be raised as above.
It is difficult to avoid triggering this error without descoping before
calling .new, breaking any apps running on 3.2.8 that rely on this
behaviour.
This patch deviates from 3.2.8 in that it does not retain the somewhat
spurious behaviour of setting the attribute to 1. Instead, it explicitly
sets these invalid values to nil :
p = Post.new
p.category_id = [ 1, 2 ]
p.category_id # => nil
This also fixes the situation where a scope using an array will
"pollute" any newly instantiated records.
@new_post = @collection.new
@new_post.category_id # => nil
Finally, 3.2.8 exhibited a behaviour where setting an object to an
integer field caused it to be coerced to "1". This has not been
retained, as it is spurious and surprising in the same way that setting
Arrays and Heshes was :
c = Category.find(6)
p = Post.new
# 3.2.8
p.category_id = c
p.category_id # => 1
# This patch
p.category_id = c
p.category_id # => nil
This commit includes explicit test cases that expose the original issue
with calling new on a scope that uses an Array. As this is a common
situation, an explicit test case is the best way to prevent regressions
in the future.
It also updates and separates existing tests to be explicit about the
situation that is being tested (eg. AR objects vs. other objects vs.
non-integers)
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This commit fixes reported issue #7630 in which counter
caches were not being updated properly when replacing
has_many_through relationships
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This test does not belong to has many associations test.
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Consider this scenario:
if params[:foo]
conditions = { foo: true }
end
foos = Foo.where(conditions).order(:id)
When params[:foo] is nil, this would call:
foos = Foo.where(nil).order(:id)
In this scenario, we want Foo.where(conditions) to be the same as calling
Foo.all, otherwise we'd get a "NoMethodError order for WhereChain".
Related to #8332.
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Relation.where with no args can be chained with not, like, and not_like
Conflicts:
activerecord/CHANGELOG.md
activerecord/lib/active_record/relation/query_methods.rb
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examples:
Model.where.not field: nil
#=> "SELECT * FROM models WHERE field IS NOT NULL
Model.where.like name: 'Jeremy%'
#=> "SELECT * FROM models WHERE name LIKE 'Jeremy%'
this feature was originally suggested by Jeremy Kemper https://github.com/rails/rails/pull/5950#issuecomment-5591330
Closes #5950
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Closes #3313
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Allows you to do BaseClass.new(:type => "SubClass") as well as
parent.children.build(:type => "SubClass") or parent.build_child
to initialize an STI subclass. Ensures that the class name is a
valid class and that it is in the ancestors of the super class
that the association is expecting.
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prevent mass assignment of polymorphic type when using `build`
Conflicts:
activerecord/CHANGELOG.md
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Closes #8265
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To perform a sum calculation over the array of elements, use to_a.sum(&block).
Please check the discussion in f9cb645dfcb5cc89f59d2f8b58a019486c828c73
for more context.
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See issue #7950.
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:counter_cache option for to support custom named counter caches
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