70 lines
2.1 KiB
Ruby
70 lines
2.1 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
require "arel/errors"
|
|
|
|
require "arel/crud"
|
|
require "arel/factory_methods"
|
|
|
|
require "arel/expressions"
|
|
require "arel/predications"
|
|
require "arel/filter_predications"
|
|
require "arel/window_predications"
|
|
require "arel/math"
|
|
require "arel/alias_predication"
|
|
require "arel/order_predications"
|
|
require "arel/table"
|
|
require "arel/attributes/attribute"
|
|
|
|
require "arel/visitors"
|
|
require "arel/collectors/sql_string"
|
|
|
|
require "arel/tree_manager"
|
|
require "arel/insert_manager"
|
|
require "arel/select_manager"
|
|
require "arel/update_manager"
|
|
require "arel/delete_manager"
|
|
require "arel/nodes"
|
|
|
|
module Arel
|
|
VERSION = "10.0.0"
|
|
|
|
# Wrap a known-safe SQL string for passing to query methods, e.g.
|
|
#
|
|
# Post.order(Arel.sql("REPLACE(title, 'misc', 'zzzz') asc")).pluck(:id)
|
|
#
|
|
# Great caution should be taken to avoid SQL injection vulnerabilities.
|
|
# This method should not be used with unsafe values such as request
|
|
# parameters or model attributes.
|
|
#
|
|
# Take a look at the {security guide}[https://guides.rubyonrails.org/security.html#sql-injection]
|
|
# for more information.
|
|
#
|
|
# To construct a more complex query fragment, including the possible
|
|
# use of user-provided values, the +sql_string+ may contain <tt>?</tt> and
|
|
# +:key+ placeholders, corresponding to the additional arguments. Note
|
|
# that this behavior only applies when bind value parameters are
|
|
# supplied in the call; without them, the placeholder tokens have no
|
|
# special meaning, and will be passed through to the query as-is.
|
|
def self.sql(sql_string, *positional_binds, **named_binds)
|
|
if positional_binds.empty? && named_binds.empty?
|
|
Arel::Nodes::SqlLiteral.new sql_string
|
|
else
|
|
Arel::Nodes::BoundSqlLiteral.new sql_string, positional_binds, named_binds
|
|
end
|
|
end
|
|
|
|
def self.star # :nodoc:
|
|
sql "*"
|
|
end
|
|
|
|
def self.arel_node?(value) # :nodoc:
|
|
value.is_a?(Arel::Nodes::Node) || value.is_a?(Arel::Attribute) || value.is_a?(Arel::Nodes::SqlLiteral)
|
|
end
|
|
|
|
def self.fetch_attribute(value, &block) # :nodoc:
|
|
unless String === value
|
|
value.fetch_attribute(&block)
|
|
end
|
|
end
|
|
end
|