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This revision makes crystal clear that the methods go
straight to the database and update the receiver. It
also adds and example, and removes the duplication
in the singular and plural forms by referring one to
the other.
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There's no need to create a new arel table or reflect on the column
association if the value is empty, these attributes are not used.
Also no need to concat a new array, just append the query value.
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If we set encoding latin1 for a PostgreSQL database, it calls
PostgreSQLAdapter::create_database with options that have,
among other things:
{ 'encoding' => 'latin1' }
Then, we use reverse_merge(:encoding => "utf8") to setup the default
encoding. In the end, the hash looks like:
{ :encoding => 'utf8', 'encoding' => 'latin1' }
The call to options.symbolize_keys calls to_sym on each_key of this
Hash. It usually means that the encoding passed overwrites the default
utf8, but it's not guaranteed. So, we shouldn't rely on it.
The same was happening in ActiveRecord::ConnectionHandling.
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This reverts commit 8348f9ea72c9b50fc4d4462fd9ebe3bba932c783, reversing
changes made to 9dfe2d6f9fabddf9a451a995678a9648c8aaf401.
Reason: this broke railties tests as explained in the issue, and the
author is going to review and report back.
https://github.com/rails/rails/pull/8930#issuecomment-12272671
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rake railties:install:migrations respects the order of railties
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exception
We were previously rescuing "nil" when no exception class was found.
This does work in 1.9.3, but does not in 2.0, raising an exception
asking for a class or module to be given to the rescue clause.
Thanks @yahonda for catching this.
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When running tasks such "rake db:setup", instead of showing messages
like "db_development already exists", it was showing a big stack trace
and a message "Couldn't create database for ..." with the configuration
options, a very confusing message with a big trace.
This brings back the functionality present in 3-2, showing the same
message.
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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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Refactor target_reflection_has_associated_record?
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Improved different_target conditions
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Conflicts:
guides/source/getting_started.md
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particularly, `all(options)` would warn
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Some tests were raising the following error:
Could not log "sql.active_record" event. NoMethodError: undefined method
`type' for nil:NilClass`
Due to the way binds were being logged, the column info was considered
always present, but that is not true for some of the tests listed in the
issue.
Closes #8806.
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refactor reset_primary_key and change !blank? to present? in get_primary...
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Closes #8804 [ci skip]
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All the valids parameters for libpq are used.
See http://www.postgresql.org/docs/9.1/static/libpq-connect.html for the
full list
Fixes #8784
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Also covers any non-castable case by returning nil, which
is in-line with the intention of the former implementation,
but covers the odd cases which respond to to_i but raise
an error when it's called, such as NaN, Infinity and -Infinity.
Fixes #8757
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* dependencies/autoload
* concern
* deprecation
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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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When dumping database structure with `rake db:structure:dump` and
using migrations, the resulting file will not end with a newline char.
Although it's not mandatory, it breaks a lot of simple use cases with
programs like cat, more, grep, etc.
This changes use `puts' instead of `<<' to append migration versions
data to the dump and also split the line where this is happening as it
was a bit long.
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