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# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/comment"
class UnsafeRawSqlTest < ActiveRecord::TestCase
fixtures :posts, :comments
test "order: allows string column name" do
ids_expected = Post.order(Arel.sql("title")).pluck(:id)
ids = Post.order("title").pluck(:id)
assert_equal ids_expected, ids
end
test "order: allows symbol column name" do
ids_expected = Post.order(Arel.sql("title")).pluck(:id)
ids = Post.order(:title).pluck(:id)
assert_equal ids_expected, ids
end
test "order: allows downcase symbol direction" do
ids_expected = Post.order(Arel.sql("title") => Arel.sql("asc")).pluck(:id)
ids = Post.order(title: :asc).pluck(:id)
assert_equal ids_expected, ids
end
test "order: allows upcase symbol direction" do
ids_expected = Post.order(Arel.sql("title") => Arel.sql("ASC")).pluck(:id)
ids = Post.order(title: :ASC).pluck(:id)
assert_equal ids_expected, ids
end
test "order: allows string direction" do
ids_expected = Post.order(Arel.sql("title") => Arel.sql("asc")).pluck(:id)
ids = Post.order(title: "asc").pluck(:id)
assert_equal ids_expected, ids
end
test "order: allows multiple columns" do
ids_expected = Post.order(Arel.sql("author_id"), Arel.sql("title")).pluck(:id)
ids = Post.order(:author_id, :title).pluck(:id)
assert_equal ids_expected, ids
end
test "order: allows mixed" do
ids_expected = Post.order(Arel.sql("author_id"), Arel.sql("title") => Arel.sql("asc")).pluck(:id)
ids = Post.order(:author_id, title: :asc).pluck(:id)
assert_equal ids_expected, ids
end
test "order: allows table and column names" do
ids_expected = Post.order(Arel.sql("title")).pluck(:id)
ids = Post.order("posts.title").pluck(:id)
assert_equal ids_expected, ids
end
test "order: allows quoted table and column names" do
ids_expected = Post.order(Arel.sql("title")).pluck(:id)
quoted_title = Post.lease_connection.quote_table_name("posts.title")
ids = Post.order(quoted_title).pluck(:id)
assert_equal ids_expected, ids
end
test "order: allows column name and direction in string" do
ids_expected = Post.order(Arel.sql("title desc")).pluck(:id)
ids = Post.order("title desc").pluck(:id)
assert_equal ids_expected, ids
end
test "order: allows table name, column name and direction in string" do
ids_expected = Post.order(Arel.sql("title desc")).pluck(:id)
ids = Post.order("posts.title desc").pluck(:id)
assert_equal ids_expected, ids
end
test "order: allows NULLS FIRST and NULLS LAST too" do
raise "precondition failed" if Post.count < 2
# Ensure there are NULL and non-NULL post types.
Post.first.update_column(:type, nil)
Post.last.update_column(:type, "Programming")
["asc", "desc", ""].each do |direction|
%w(first last).each do |position|
ids_expected = Post.order(Arel.sql("type::text #{direction} nulls #{position}")).pluck(:id)
ids = Post.order("type::text #{direction} nulls #{position}").pluck(:id)
assert_equal ids_expected, ids
end
end
end if current_adapter?(:PostgreSQLAdapter)
test "order: disallows invalid column name" do
assert_raises(ActiveRecord::UnknownAttributeReference) do
Post.order("REPLACE(title, 'misc', 'zzzz') asc").pluck(:id)
end
end
test "order: disallows invalid direction" do
assert_raises(ArgumentError) do
Post.order(title: :foo).pluck(:id)
end
end
test "order: disallows invalid column with direction" do
assert_raises(ActiveRecord::UnknownAttributeReference) do
Post.order("REPLACE(title, 'misc', 'zzzz')" => :asc).pluck(:id)
end
end
test "order: always allows Arel" do
titles = Post.order(Arel.sql("length(title)")).pluck(:title)
assert_not_empty titles
end
test "order: allows Arel.sql with binds" do
ids_expected = Post.order(Arel.sql("REPLACE(title, 'misc', 'zzzz'), id")).pluck(:id)
ids = Post.order([Arel.sql("REPLACE(title, ?, ?), id"), "misc", "zzzz"]).pluck(:id)
assert_equal ids_expected, ids
end
test "order: disallows invalid bind statement" do
assert_raises(ActiveRecord::UnknownAttributeReference) do
Post.order(["REPLACE(title, ?, ?), id", "misc", "zzzz"]).pluck(:id)
end
end
test "order: disallows invalid Array arguments" do
assert_raises(ActiveRecord::UnknownAttributeReference) do
Post.order(["author_id", "REPLACE(title, 'misc', 'zzzz')"]).pluck(:id)
end
end
test "order: allows valid Array arguments" do
ids_expected = Post.order(Arel.sql("author_id, length(title)")).pluck(:id)
ids = Post.order(["author_id", "length(title)"]).pluck(:id)
assert_equal ids_expected, ids
end
test "order: allows valid arguments with COLLATE" do
collation_name = {
"PostgreSQL" => "C",
"Mysql2" => "utf8mb4_bin",
"Trilogy" => "utf8mb4_bin",
"SQLite" => "binary"
}[ActiveRecord::Base.lease_connection.adapter_name]
ids_expected = Post.order(Arel.sql(%Q'author_id, title COLLATE "#{collation_name}" DESC')).pluck(:id)
ids = Post.order(["author_id", %Q'title COLLATE "#{collation_name}" DESC']).pluck(:id)
assert_equal ids_expected, ids
end
test "order: allows nested functions" do
ids_expected = Post.order(Arel.sql("author_id, length(trim(title))")).pluck(:id)
ids = Post.order("author_id, length(trim(title))").pluck(:id)
assert_equal ids_expected, ids
end
test "order: logs deprecation warning for unrecognized column" do
e = assert_raises(ActiveRecord::UnknownAttributeReference) do
Post.order("REPLACE(title, 'misc', 'zzzz')")
end
assert_match(/Dangerous query method \(method whose arguments are used as raw SQL\) called with non-attribute argument\(s\):/, e.message)
end
test "pluck: allows string column name" do
titles_expected = Post.pluck(Arel.sql("title"))
titles = Post.pluck("title")
assert_equal titles_expected, titles
end
test "pluck: allows string column name with function and alias" do
titles_expected = Post.pluck(Arel.sql("UPPER(title)"))
titles = Post.pluck("UPPER(title) AS title")
assert_equal titles_expected, titles
end
test "pluck: allows symbol column name" do
titles_expected = Post.pluck(Arel.sql("title"))
titles = Post.pluck(:title)
assert_equal titles_expected, titles
end
test "pluck: allows multiple column names" do
values_expected = Post.pluck(Arel.sql("title"), Arel.sql("id"))
values = Post.pluck(:title, :id)
assert_equal values_expected, values
end
test "pluck: allows column names with includes" do
values_expected = Post.includes(:comments).pluck(Arel.sql("title"), Arel.sql("id"))
values = Post.includes(:comments).pluck(:title, :id)
assert_equal values_expected, values
end
test "pluck: allows auto-generated attributes" do
values_expected = Post.pluck(Arel.sql("tags_count"))
values = Post.pluck(:tags_count)
assert_equal values_expected, values
end
test "pluck: allows table and column names" do
titles_expected = Post.pluck(Arel.sql("title"))
titles = Post.pluck("posts.title")
assert_equal titles_expected, titles
end
test "pluck: allows quoted table and column names" do
titles_expected = Post.pluck(Arel.sql("title"))
quoted_title = Post.lease_connection.quote_table_name("posts.title")
titles = Post.pluck(quoted_title)
assert_equal titles_expected, titles
end
test "pluck: allows nested functions" do
title_lengths_expected = Post.pluck(Arel.sql("length(trim(title))"))
title_lengths = Post.pluck("length(trim(title))")
assert_equal title_lengths_expected, title_lengths
end
test "pluck: disallows invalid column name" do
assert_raises(ActiveRecord::UnknownAttributeReference) do
Post.pluck("REPLACE(title, 'misc', 'zzzz')")
end
end
test "pluck: disallows invalid column name amongst valid names" do
assert_raises(ActiveRecord::UnknownAttributeReference) do
Post.pluck(:title, "REPLACE(title, 'misc', 'zzzz')")
end
end
test "pluck: disallows invalid column names with includes" do
assert_raises(ActiveRecord::UnknownAttributeReference) do
Post.includes(:comments).pluck(:title, "REPLACE(title, 'misc', 'zzzz')")
end
end
test "pluck: always allows Arel" do
excepted_values = Post.includes(:comments).pluck(:title).map { |title| [title, title.size] }
values = Post.includes(:comments).pluck(:title, Arel.sql("length(title)"))
assert_equal excepted_values, values
end
test "pluck: logs deprecation warning" do
e = assert_raises(ActiveRecord::UnknownAttributeReference) do
Post.includes(:comments).pluck(:title, "REPLACE(title, 'misc', 'zzzz')")
end
assert_match(/Dangerous query method \(method whose arguments are used as raw SQL\) called with non-attribute argument\(s\):/, e.message)
end
end
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