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Update documentation for collection<< to reflect behavior for new parent objects.
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collection<< does not automatically fire update sql unless the parent object
is not a new record (and thus has a primary key).
eg:
p = Post.new
p.comments << Comment.new
does not call update sql until:
p.save
at which point it saves the parent object and then the collection object.
changes that to the
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During insertion of "# This migration comes from ... " comment at the beginning of
a migration, presence of magic comment was not considered.
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which make it clearer about what's going on.
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[ci skip]
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Thanks @neerajdotname for noticing this bug.
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Fix ActiveRecord `subclass_from_attrs` when eager_load is false.
Conflicts:
activerecord/CHANGELOG.md
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It cannot find subclass because all classes are loaded automatically
when it needs.
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I've also added a proper acceptance test which reproduced the issue.
Closes #9513, #9515.
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Use the index name explicitly provided in a migration when reverting.
Fixes #8868
Conflicts:
activerecord/CHANGELOG.md
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schema_statements uses the column name by default to construct the index name, and then raises an exception if it doesn't exist, even if the name option is specified, which causes #8858. this commit makes index_name_for_remove fall back to constructing the index name to remove based on the name option.
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cfabianski/disable_prepared_statement_when_preparing_a_query
Unprepared Visitor + unprepared_statement
Conflicts:
activerecord/CHANGELOG.md
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Introduced in f1082b8588a9144eedb34d511f0074031f692d98.
Full changelog in 9f007d7fe5f90257c71baa2c4e7c76fb44512986.
[ci skip]
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7365 merging scopes for where clauses
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Currently Post.active.inactive will result in Post.inactive since
the last where clause wins when scopes are merged.
This pull request will merge all scopes ( barring defaul scope)
using AND.
The default scope will be overridden if another scope acts on the
same where clause.
closes #7365
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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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cache_key consults updated_on timestamp if present
Conflicts:
activerecord/CHANGELOG.md
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- Extract max timestamp retrieval for cache_key
- Update changelog for cache_key changes
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More helpful error message when instantiating an abstract class
Conflicts:
activerecord/CHANGELOG.md
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Calling a literal ActiveRecord::Base.new raises NoMethodError,
since it ends up calling Class.abstract_class? which does not exist.
Similarly, instantiating an actual abstract class hits the database,
when conventionally it should immediately throw NotImplementedError.
ActiveRecord::Base can't be made abstract without breaking many,
many things, so check for it separately.
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Closes #9518.
The rake task used to fail silently and left an empty `structure.sql`.
It's confusing for users to get to the root of the problem.
The warning message tells them where to look.
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As of ccc6910c we use `mysqldump` to create the `structure.sql`.
The old `#structure_dump` code is still in AR but never used.
I removed all relevant parts from the code-base.
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Transactions can be turned off per Migration
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Closes #9483.
There are SQL Queries that can't run inside a transaction. Since
the Migrator used to wrap all Migrations inside a transaction there
was no way to run these queries within a migration.
This patch adds `self.disable_ddl_transaction!` to the migration to
turn transactions off when necessary.
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Remove unused return value, because collecting_queries_for_explain isn't public API.
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public API.
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Closes #9459.
The PR #6597 unified the configuration for `include_root_in_json`
in AM and AR to `false`.
Later on with the refactoring commit: e030f26 the value in AR was
set to `true` but I think this was not on purpose.
With this commit both AM and AR will have the same configuration
for `include_root_in_json`, which is `false`.
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Introduce relation #unscope
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relations. Specific where values can be unscoped, and the unscope method
still works when relations are merged or combined.
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In example fix sql that is generated from scoping
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Fix PostgreSQL TIMESTAMP WITH TIME ZONE to return ActiveSupport::Time
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In an AR model a timestamptz attribute would return a ruby string and AR
tests did not check for any type casting. Previous tests would pass
only because an assert_equal was being used on a Time.utc object, which
will parse the right side of the eq to a valid Time instance for
comparision.
switch to test instance of Time instead of ActiveSupport::TimeWithZone
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Closes #7364.
Collection associations behave similar to Arrays. However there is no
way to prepend records. And to append one should use `<<`. Before this
patch `#append` and `#prepend` did not add the record to the loaded
association.
`#append` now behaves like `<<` and `#prepend` is not defined.
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Sometimes you want to create a table without an associated model and
test, which is also not a join table. With this commit, you can now
do that.
Example:
rails g migration create_posts title:string
or
rails g migration CreatePosts title:string
This commit also moves the template the model generator uses for the
migration to the migration templates folder, as it seems a more
sensible place for it now that it is shared code.
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Closes #9480.
We use `TableDefinition` for `#create_table` and `Table` for `#change_table`.
The PostgreSQL sepcifc types were only defined on `TableDefinition` so I
also added them to `Table`.
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