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rails--rails/activerecord/lib/arel/nodes.rb

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Enable frozen_string_literal in all files in arel
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# frozen_string_literal: true
Arel: rubocop -a
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cleaning up more nodes
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# node
Arel: rubocop -a
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require "arel/nodes/node"
require "arel/nodes/node_expression"
require "arel/nodes/select_statement"
require "arel/nodes/select_core"
require "arel/nodes/insert_statement"
require "arel/nodes/update_statement"
require "arel/nodes/bind_param"
cleaning up more nodes
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adding Distinct ON node
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# terminal
Arel: rubocop -a
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require "arel/nodes/terminal"
require "arel/nodes/true"
require "arel/nodes/false"
adding Distinct ON node
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# unary
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require "arel/nodes/unary"
require "arel/nodes/grouping"
require "arel/nodes/ascending"
require "arel/nodes/descending"
require "arel/nodes/unqualified_column"
require "arel/nodes/with"
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# binary
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require "arel/nodes/binary"
require "arel/nodes/equality"
require "arel/nodes/in" # Why is this subclassed from equality?
require "arel/nodes/join_source"
require "arel/nodes/delete_statement"
require "arel/nodes/table_alias"
require "arel/nodes/infix_operation"
require "arel/nodes/unary_operation"
require "arel/nodes/over"
require "arel/nodes/matches"
require "arel/nodes/regexp"
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# nary
Arel: rubocop -a
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require "arel/nodes/and"
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# function
# FIXME: Function + Alias can be rewritten as a Function and Alias node.
# We should make Function a Unary node and deprecate the use of "aliaz"
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require "arel/nodes/function"
require "arel/nodes/count"
require "arel/nodes/extract"
require "arel/nodes/values_list"
require "arel/nodes/named_function"
cleaning up more nodes
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Support ANSI SQL2003 window functions.
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# windows
Arel: rubocop -a
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require "arel/nodes/window"
Support ANSI SQL2003 window functions.
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Implement CASE Conditional Expression
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# conditional expressions
Arel: rubocop -a
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require "arel/nodes/case"
Implement CASE Conditional Expression
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cleaning up more nodes
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# joins
Arel: rubocop -a
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require "arel/nodes/full_outer_join"
require "arel/nodes/inner_join"
require "arel/nodes/outer_join"
require "arel/nodes/right_outer_join"
require "arel/nodes/string_join"
cleaning up more nodes
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Add Relation#annotate for SQL commenting This patch has two main portions: 1. Add SQL comment support to Arel via Arel::Nodes::Comment. 2. Implement a Relation#annotate method on top of that. == Adding SQL comment support Adds a new Arel::Nodes::Comment node that represents an optional SQL comment and teachers the relevant visitors how to handle it. Comment nodes may be added to the basic CRUD statement nodes and set through any of the four (Select|Insert|Update|Delete)Manager objects. For example: manager = Arel::UpdateManager.new manager.table table manager.comment("annotation") manager.to_sql # UPDATE "users" /* annotation */ This new node type will be used by ActiveRecord::Relation to enable query annotation via SQL comments. == Implementing the Relation#annotate method Implements `ActiveRecord::Relation#annotate`, which accepts a comment string that will be appeneded to any queries generated by the relation. Some examples: relation = Post.where(id: 123).annotate("metadata string") relation.first # SELECT "posts".* FROM "posts" WHERE "posts"."id" = 123 # LIMIT 1 /* metadata string */ class Tag < ActiveRecord::Base scope :foo_annotated, -> { annotate("foo") } end Tag.foo_annotated.annotate("bar").first # SELECT "tags".* FROM "tags" LIMIT 1 /* foo */ /* bar */ Also wires up the plumbing so this works with `#update_all` and `#delete_all` as well. This feature is useful for instrumentation and general analysis of queries generated at runtime.
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require "arel/nodes/comment"
Arel: rubocop -a
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require "arel/nodes/sql_literal"
add the casting node to the AST at build time If we add the casting node to the ast at build time, then we can avoid doing the lookup at visit time.
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Arel: rubocop -a
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require "arel/nodes/casted"
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