| Commit message (Collapse) | Author | Age | Files | Lines |
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Add title for key lengths for multiple keys.
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Previously there was no separator between the two code examples so it looked like:
```ruby
CREATE INDEX by_name ON accounts(name(10))
add_index(:accounts, [:name, :surname], name: 'by_name_surname', length: {name: 10, surname: 15})
```
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If foreign keys specified in create table, generated SQL is slightly more
efficient.
Definition:
```
create_table :testings do |t|
t.references :testing_parent, foreign_key: true
end
```
Before:
```
CREATE TABLE "testings" ("id" serial primary key, "testing_parent_id" integer);
ALTER TABLE "testings" ADD CONSTRAINT "fk_rails_a196c353b2" FOREIGN KEY ("testing_parent_id") REFERENCES "testing_parents" ("id");
```
After:
```
CREATE TABLE "testings" ("id" serial primary key, "testing_parent_id" integer, CONSTRAINT "fk_rails_a196c353b2" FOREIGN KEY ("testing_parent_id") REFERENCES "testing_parents" ("id"));
```
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Do not dump a view as a table in sqlite3, mysql and mysql2 adapters
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Remove unnecessary display width
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The **(11)** does not affect the storage size of the data type, which for an
INT will always be 4 bytes. It affects the **display width**.
http://www.tocker.ca/2015/07/02/proposal-to-deprecate-mysql-integer-display-width-and-zerofill.html
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kamipo/eliminate_duplicated_options_include_default_method
Eliminate the duplicated `options_include_default?` method
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Follow up 7ba2cd06.
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Example:
create_table :barcodes, primary_key: ["region", "code"] do |t|
t.string :region
t.integer :code
end
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It is always passed in
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Define `SchemaStatements#tables` as interface
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These 3 methods expect `ConnectionAdapters` to have `tables` method,
so make it clear that `tables` method is interface.
* `ConnectionAdapters::SchemaCache#prepare_tables`
* `db:schema:cache:dump` task
* `SchemaDumper#tables`
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See http://www.postgresql.org/docs/9.4/static/sql-dropindex.html
for more details.
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Documentation had extra colon after keyword.
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vngrs/foreign_key_with_table_name_suffix_and_prefix
Add table name prefix and suffix support for foreign keys
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remove_foreign_key methods
fix tests
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Passing `:from` and `:to` to `change_column_default` makes this command
reversible as user has defined its previous state.
So, instead of having the migration command as:
change_column_default(:posts, :state, "draft")
They can write it as:
change_column_default(:posts, :state, from: nil, to: "draft")
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This used to raise a `IrreversibleMigration` error (since #10437).
However since `remove_index :table, :column` is probably the most basic
use-case we should make it reversible again.
Conflicts:
activerecord/CHANGELOG.md
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Make remove_foreign_key reversible
Conflicts:
activerecord/CHANGELOG.md
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[Robin Dupret & Shunsuke Aida]
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This patch
- reduces the duplication among the `reference`-family methods.
- better explains all the optians available for `add_reference`.
- redirects to user from `references` to `add_reference`.
Originated by #20184.
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- This method is used only by adapters to validate length of new index names.
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follow up to 107526e809ea2b6de8b2775ecf83e55d60833206
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Fixes #18106
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We should document current behavior, and this is design of API for now.
Closes #17597
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The implementation of the generation of the foreign key name was changed
between Rails 4.2.0 and 4.2.1 from a random to a deterministic behavior,
however the documentation still describes the old randomized behavior.
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It behaves in the same way that the abstract adapter.
[ci skip]
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creating foreign key
test case for use singular table name if pluralize_table_names is setted as false while creating foreign key
refactor references foreign key addition tests
use singular table name while removing foreign key
merge foreign key singular table name methods
remove unnecessary drop table from test
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This reverts commit 1502caefd30b137fd1a0865be34c5bbf85ba64c1.
The test suite for the mysql adapter broke when this commit was used
with MySQL 5.6.
Conflicts:
activerecord/CHANGELOG.md
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Add `foreign_key_exists?` method.
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MySQL rejects to remove an index which is used in a foreign key constraint:
```
ActiveRecord::StatementInvalid: Mysql2::Error: Cannot drop index 'index_copies_on_title_id': needed in a foreign key constraint: ALTER TABLE `copies` DROP `title_id`
```
Removing the constraint before removing the column (and the index) solves this problem.
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If set to `if_exists: true`, it generates a statement like:
DROP TABLE IF EXISTS posts
This syntax is supported in the popular SQL servers, that is (at least)
SQLite, PostgreSQL, MySQL, Oracle and MS SQL Sever.
Closes #16366.
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In most cases, `create_table_definition` called by table_name (the first
argument) only.
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The code for `TableDefinition#references` and
`SchemaStatements#add_reference` were almost identical both
structurally, and in terms of domain knowledge. This removes that
duplication into a common class, using the `Table` API as the expected
interface of its collaborator.
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