Rename project to axiom-sql-generator

Gemfile

@@ -2,7 +2,7 @@
 
 source 'https://rubygems.org'
 
-gem 'veritas', '~> 0.0.8', :git => 'https://github.com/dkubb/veritas.git'
+gem 'axiom', '~> 0.0.8', :git => 'https://github.com/dkubb/axiom.git'
 
 gem 'devtools', :git => 'https://github.com/datamapper/devtools.git'
 eval File.read('Gemfile.devtools')

README.md

@@ -1,40 +1,40 @@
-veritas-sql-generator
-=====================
+axiom-sql-generator
+===================
 
 Relational algebra SQL generator
 
-[![Gem Version](https://badge.fury.io/rb/veritas-sql-generator.png)][gem]
-[![Build Status](https://secure.travis-ci.org/dkubb/veritas-sql-generator.png?branch=master)][travis]
-[![Dependency Status](https://gemnasium.com/dkubb/veritas-sql-generator.png)][gemnasium]
-[![Code Climate](https://codeclimate.com/github/dkubb/veritas-sql-generator.png)][codeclimate]
-[![Coverage Status](https://coveralls.io/repos/dkubb/veritas-sql-generator/badge.png?branch=master)][coveralls]
+[![Gem Version](https://badge.fury.io/rb/axiom-sql-generator.png)][gem]
+[![Build Status](https://secure.travis-ci.org/dkubb/axiom-sql-generator.png?branch=master)][travis]
+[![Dependency Status](https://gemnasium.com/dkubb/axiom-sql-generator.png)][gemnasium]
+[![Code Climate](https://codeclimate.com/github/dkubb/axiom-sql-generator.png)][codeclimate]
+[![Coverage Status](https://coveralls.io/repos/dkubb/axiom-sql-generator/badge.png?branch=master)][coveralls]
 
-[gem]: https://rubygems.org/gems/veritas-sql-generator
-[travis]: https://travis-ci.org/dkubb/veritas-sql-generator
-[gemnasium]: https://gemnasium.com/dkubb/veritas-sql-generator
-[codeclimate]: https://codeclimate.com/github/dkubb/veritas-sql-generator
-[coveralls]: https://coveralls.io/r/dkubb/veritas-sql-generator
+[gem]: https://rubygems.org/gems/axiom-sql-generator
+[travis]: https://travis-ci.org/dkubb/axiom-sql-generator
+[gemnasium]: https://gemnasium.com/dkubb/axiom-sql-generator
+[codeclimate]: https://codeclimate.com/github/dkubb/axiom-sql-generator
+[coveralls]: https://coveralls.io/r/dkubb/axiom-sql-generator
 
 Installation
 ------------
 
 With Rubygems:
 
 ```bash
-$ gem install veritas-sql-generator
+$ gem install axiom-sql-generator
 $ irb -rubygems
->> require 'veritas-sql-generator'
+>> require 'axiom-sql-generator'
 => true
 ```
 
 With git and local working copy:
 
 ```bash
-$ git clone git://github.com/dkubb/veritas-sql-generator.git
-$ cd veritas-sql-generator
+$ git clone git://github.com/dkubb/axiom-sql-generator.git
+$ cd axiom-sql-generator
 $ rake install
 $ irb -rubygems
->> require 'veritas-sql-generator'
+>> require 'axiom-sql-generator'
 => true
 ```
 
@@ -43,7 +43,7 @@ Usage
 
 ```ruby
 # visit every node in the relation AST
-generator = Veritas::SQL::Generator::Relation.visit(relation)
+generator = Axiom::SQL::Generator::Relation.visit(relation)
 
 # generate an SQL string
 sql = generator.to_sql
@@ -55,7 +55,7 @@ subquery_sql = generator.to_subquery
 Description
 -----------
 
-The purpose of this gem is to produce valid SQL from a [veritas](https://github.com/dkubb/veritas) relation. A relation is a representation of a query constructed using relational algebra organized into an AST. Each node in the AST corresponds to an operation defined in the algebra.
+The purpose of this gem is to produce valid SQL from a [axiom](https://github.com/dkubb/axiom) relation. A relation is a representation of a query constructed using relational algebra organized into an AST. Each node in the AST corresponds to an operation defined in the algebra.
 
 The SQL produced has been verified and tested against [PostgreSQL](http://www.postgresql.org/) 9.0.4. Dialects for [MySQL](http://www.mysql.com/), [SQLite](http://www.sqlite.org/), [Oracle](http://www.oracle.com/) and [SQL Server](http://www.microsoft.com/sqlserver/) are planned.
 

TODO

@@ -5,9 +5,9 @@
     special cases.
   * Use different classes for inclusive/exclusive Range literals so that
     they can be serialized to SQL differently.
-    * Create Veritas::Literal::Range proxy object w/factory method
-    * Create Veritas::Literal::Range::Inclusive
-    * Create Veritas::Literal::Range::Exclusive
+    * Create Axiom::Literal::Range proxy object w/factory method
+    * Create Axiom::Literal::Range::Inclusive
+    * Create Axiom::Literal::Range::Exclusive
 
 * Handle cases where an Inequality/Exclusion predicate is used (or a
   Negation wrapping an Equality/Inclusion) on an *optional* attribute.

veritas-sql-generator.gemspec → axiom-sql-generator.gemspec

@@ -1,23 +1,23 @@
 # encoding: utf-8
 
-require File.expand_path('../lib/veritas/sql/generator/version', __FILE__)
+require File.expand_path('../lib/axiom/sql/generator/version', __FILE__)
 
 Gem::Specification.new do |gem|
-  gem.name        = 'veritas-sql-generator'
-  gem.version     = Veritas::SQL::Generator::VERSION.dup
+  gem.name        = 'axiom-sql-generator'
+  gem.version     = Axiom::SQL::Generator::VERSION.dup
   gem.authors     = ['Dan Kubb']
   gem.email       = 'dan.kubb@gmail.com'
-  gem.description = 'Generate SQL from a veritas relation'
+  gem.description = 'Generate SQL from a axiom relation'
   gem.summary     = 'Relational algebra SQL generator'
-  gem.homepage    = 'https://github.com/dkubb/veritas-sql-generator'
+  gem.homepage    = 'https://github.com/dkubb/axiom-sql-generator'
   gem.licenses    = %w[MIT]
 
   gem.require_paths    = %w[lib]
   gem.files            = `git ls-files`.split($/)
   gem.test_files       = `git ls-files -- spec/{unit,integration}`.split($/)
   gem.extra_rdoc_files = %w[LICENSE README.md TODO]
 
-  gem.add_runtime_dependency('veritas', '~> 0.0.7')
+  gem.add_runtime_dependency('axiom', '~> 0.0.7')
 
   gem.add_development_dependency('rake',  '~> 10.0.4')
   gem.add_development_dependency('rspec', '~> 2.13.0')

config/mutant.yml

@@ -1,3 +1,3 @@
 ---
-name: veritas-sql-generator
-namespace: Veritas::SQL::Generator
+name: axiom-sql-generator
+namespace: Axiom::SQL::Generator

config/reek.yml

@@ -2,7 +2,7 @@
 Attribute:
   enabled: true
   exclude:
-  - Veritas::SQL::Generator::Relation
+  - Axiom::SQL::Generator::Relation
 BooleanParameter:
   enabled: true
   exclude: []
@@ -15,7 +15,7 @@ ControlParameter:
 DataClump:
   enabled: true
   exclude:
-  - Veritas::SQL::Generator::Function
+  - Axiom::SQL::Generator::Function
   max_copies: 2
   min_clump_size: 2
 DuplicateMethodCall:
@@ -26,22 +26,22 @@ DuplicateMethodCall:
 FeatureEnvy:
   enabled: true
   exclude:
-  - Veritas::SQL::Generator::Function::Predicate#new_from_enumerable_predicate
-  - Veritas::SQL::Generator::Function::Predicate#optional?
-  - Veritas::SQL::Generator::Function::Predicate#visit_veritas_function_predicate_inequality
-  - Veritas::SQL::Generator::Identifier#visit_identifier
-  - Veritas::SQL::Generator::Identifier#visit_identifier
-  - Veritas::SQL::Generator::Literal#visit_numeric
-  - Veritas::SQL::Generator::Literal#visit_string
-  - Veritas::SQL::Generator::Literal#visit_string
-  - Veritas::SQL::Generator::Relation#column_list_for
+  - Axiom::SQL::Generator::Function::Predicate#new_from_enumerable_predicate
+  - Axiom::SQL::Generator::Function::Predicate#optional?
+  - Axiom::SQL::Generator::Function::Predicate#visit_veritas_function_predicate_inequality
+  - Axiom::SQL::Generator::Identifier#visit_identifier
+  - Axiom::SQL::Generator::Identifier#visit_identifier
+  - Axiom::SQL::Generator::Literal#visit_numeric
+  - Axiom::SQL::Generator::Literal#visit_string
+  - Axiom::SQL::Generator::Literal#visit_string
+  - Axiom::SQL::Generator::Relation#column_list_for
 IrresponsibleModule:
   enabled: true
   exclude: []
 LongParameterList:
   enabled: true
   exclude:
-  - Veritas::SQL::Generator::Function::Predicate#new_from_enumerable_predicate
+  - Axiom::SQL::Generator::Function::Predicate#new_from_enumerable_predicate
   max_params: 2
   overrides:
     initialize:
@@ -53,69 +53,69 @@ LongYieldList:
 NestedIterators:
   enabled: true
   exclude:
-  - Veritas::SQL::Generator::Relation::Materialized#visit_veritas_relation_materialized
-  - Veritas::SQL::Generator::Visitor#self.handlers
+  - Axiom::SQL::Generator::Relation::Materialized#visit_veritas_relation_materialized
+  - Axiom::SQL::Generator::Visitor#self.handlers
   max_allowed_nesting: 1
   ignore_iterators: []
 NilCheck:
   enabled: true
   exclude:
-  - Veritas::SQL::Generator::Function::Predicate#inequality_sql
-  - Veritas::SQL::Generator::Function::Predicate#visit_veritas_function_predicate_equality
+  - Axiom::SQL::Generator::Function::Predicate#inequality_sql
+  - Axiom::SQL::Generator::Function::Predicate#visit_veritas_function_predicate_equality
 RepeatedConditional:
   enabled: true
   exclude:
-  - Veritas::SQL::Generator::Relation
+  - Axiom::SQL::Generator::Relation
   max_ifs: 1
 TooManyInstanceVariables:
   enabled: true
   exclude:
-  - Veritas::SQL::Generator::Relation::Binary
-  - Veritas::SQL::Generator::Relation::Unary
+  - Axiom::SQL::Generator::Relation::Binary
+  - Axiom::SQL::Generator::Relation::Unary
   max_instance_variables: 3
 TooManyMethods:
   enabled: true
   exclude:
-  - Veritas::SQL::Generator::Relation
-  - Veritas::SQL::Generator::Relation::Unary
+  - Axiom::SQL::Generator::Relation
+  - Axiom::SQL::Generator::Relation::Unary
   max_methods: 10
 TooManyStatements:
   enabled: true
   exclude:
   - Date#iso8601
   - DateTime#iso8601_timediv
-  - Veritas::SQL::Generator::Function::Predicate#exclusive_range_exclusion_sql
-  - Veritas::SQL::Generator::Function::Predicate#exclusive_range_inclusion_sql
-  - Veritas::SQL::Generator::Function::Predicate#inequality_expressions
-  - Veritas::SQL::Generator::Function::Predicate#visit_veritas_function_predicate_inequality
-  - Veritas::SQL::Generator::Literal#visit_class
-  - Veritas::SQL::Generator::Relation#column_list_for
-  - Veritas::SQL::Generator::Relation#columns_for
-  - Veritas::SQL::Generator::Relation#implicit_columns
-  - Veritas::SQL::Generator::Relation#self.visit
-  - Veritas::SQL::Generator::Relation::Binary#set_operands
-  - Veritas::SQL::Generator::Relation::Binary#visit_veritas_algebra_join
-  - Veritas::SQL::Generator::Relation::Binary#visit_veritas_algebra_product
-  - Veritas::SQL::Generator::Relation::Insertion#visit_veritas_relation_operation_insertion
-  - Veritas::SQL::Generator::Relation::Materialized#generate_sql
-  - Veritas::SQL::Generator::Relation::Set#self.normalize_operand_headers
-  - Veritas::SQL::Generator::Relation::Set#visit_veritas_algebra_difference
-  - Veritas::SQL::Generator::Relation::Set#visit_veritas_algebra_intersection
-  - Veritas::SQL::Generator::Relation::Set#visit_veritas_algebra_union
-  - Veritas::SQL::Generator::Relation::Unary#reset_query_state
-  - Veritas::SQL::Generator::Relation::Unary#subquery_for
-  - Veritas::SQL::Generator::Relation::Unary#summarize_per
-  - Veritas::SQL::Generator::Relation::Unary#visit_veritas_algebra_extension
-  - Veritas::SQL::Generator::Relation::Unary#visit_veritas_algebra_projection
-  - Veritas::SQL::Generator::Relation::Unary#visit_veritas_algebra_rename
-  - Veritas::SQL::Generator::Relation::Unary#visit_veritas_algebra_restriction
-  - Veritas::SQL::Generator::Relation::Unary#visit_veritas_algebra_summarization
-  - Veritas::SQL::Generator::Relation::Unary#visit_veritas_relation_base
-  - Veritas::SQL::Generator::Relation::Unary#visit_veritas_relation_operation_binary
-  - Veritas::SQL::Generator::Relation::Unary#visit_veritas_relation_operation_limit
-  - Veritas::SQL::Generator::Relation::Unary#visit_veritas_relation_operation_offset
-  - Veritas::SQL::Generator::Relation::Unary#visit_veritas_relation_operation_order
-  - Veritas::SQL::Generator::Visitor#self.method_for
+  - Axiom::SQL::Generator::Function::Predicate#exclusive_range_exclusion_sql
+  - Axiom::SQL::Generator::Function::Predicate#exclusive_range_inclusion_sql
+  - Axiom::SQL::Generator::Function::Predicate#inequality_expressions
+  - Axiom::SQL::Generator::Function::Predicate#visit_veritas_function_predicate_inequality
+  - Axiom::SQL::Generator::Literal#visit_class
+  - Axiom::SQL::Generator::Relation#column_list_for
+  - Axiom::SQL::Generator::Relation#columns_for
+  - Axiom::SQL::Generator::Relation#implicit_columns
+  - Axiom::SQL::Generator::Relation#self.visit
+  - Axiom::SQL::Generator::Relation::Binary#set_operands
+  - Axiom::SQL::Generator::Relation::Binary#visit_veritas_algebra_join
+  - Axiom::SQL::Generator::Relation::Binary#visit_veritas_algebra_product
+  - Axiom::SQL::Generator::Relation::Insertion#visit_veritas_relation_operation_insertion
+  - Axiom::SQL::Generator::Relation::Materialized#generate_sql
+  - Axiom::SQL::Generator::Relation::Set#self.normalize_operand_headers
+  - Axiom::SQL::Generator::Relation::Set#visit_veritas_algebra_difference
+  - Axiom::SQL::Generator::Relation::Set#visit_veritas_algebra_intersection
+  - Axiom::SQL::Generator::Relation::Set#visit_veritas_algebra_union
+  - Axiom::SQL::Generator::Relation::Unary#reset_query_state
+  - Axiom::SQL::Generator::Relation::Unary#subquery_for
+  - Axiom::SQL::Generator::Relation::Unary#summarize_per
+  - Axiom::SQL::Generator::Relation::Unary#visit_veritas_algebra_extension
+  - Axiom::SQL::Generator::Relation::Unary#visit_veritas_algebra_projection
+  - Axiom::SQL::Generator::Relation::Unary#visit_veritas_algebra_rename
+  - Axiom::SQL::Generator::Relation::Unary#visit_veritas_algebra_restriction
+  - Axiom::SQL::Generator::Relation::Unary#visit_veritas_algebra_summarization
+  - Axiom::SQL::Generator::Relation::Unary#visit_veritas_relation_base
+  - Axiom::SQL::Generator::Relation::Unary#visit_veritas_relation_operation_binary
+  - Axiom::SQL::Generator::Relation::Unary#visit_veritas_relation_operation_limit
+  - Axiom::SQL::Generator::Relation::Unary#visit_veritas_relation_operation_offset
+  - Axiom::SQL::Generator::Relation::Unary#visit_veritas_relation_operation_order
+  - Axiom::SQL::Generator::Visitor#self.method_for
   - each
   max_statements: 2
 UncommunicativeMethodName:
@@ -157,9 +157,9 @@ UnusedParameters:
 UtilityFunction:
   enabled: true
   exclude:
-  - Veritas::SQL::Generator::Function::Predicate#new_from_enumerable_predicate
-  - Veritas::SQL::Generator::Function::Predicate#optional?
-  - Veritas::SQL::Generator::Identifier#visit_identifier
-  - Veritas::SQL::Generator::Literal#visit_numeric
-  - Veritas::SQL::Generator::Literal#visit_string
+  - Axiom::SQL::Generator::Function::Predicate#new_from_enumerable_predicate
+  - Axiom::SQL::Generator::Function::Predicate#optional?
+  - Axiom::SQL::Generator::Identifier#visit_identifier
+  - Axiom::SQL::Generator::Literal#visit_numeric
+  - Axiom::SQL::Generator::Literal#visit_string
   max_helper_calls: 0

lib/axiom-sql-generator.rb

@@ -0,0 +1,3 @@
+# encoding: utf-8
+
+require 'axiom/sql/generator'

lib/axiom/sql/generator.rb

@@ -0,0 +1,61 @@
+# encoding: utf-8
+
+require 'date'
+require 'time'
+
+require 'axiom'
+
+require 'axiom/sql/generator/core_ext/date'
+require 'axiom/sql/generator/core_ext/date_time'
+
+require 'axiom/sql/generator/visitor'
+
+require 'axiom/sql/generator/identifier'
+require 'axiom/sql/generator/attribute'
+require 'axiom/sql/generator/direction'
+require 'axiom/sql/generator/literal'
+
+require 'axiom/sql/generator/function'
+require 'axiom/sql/generator/function/aggregate'
+require 'axiom/sql/generator/function/connective'
+require 'axiom/sql/generator/function/numeric'
+require 'axiom/sql/generator/function/predicate'
+require 'axiom/sql/generator/function/proposition'
+require 'axiom/sql/generator/function/string'
+
+require 'axiom/sql/generator/relation'
+require 'axiom/sql/generator/relation/unary'
+require 'axiom/sql/generator/relation/base'
+require 'axiom/sql/generator/relation/binary'
+require 'axiom/sql/generator/relation/materialized'
+require 'axiom/sql/generator/relation/set'
+
+require 'axiom/sql/generator/relation/insertion'
+
+require 'axiom/sql/generator/version'
+
+module Axiom
+  module SQL
+    module Generator
+
+      # Raised when an invalid relation is visited
+      class InvalidRelationError < StandardError; end
+
+      LEFT_PARENTHESIS  = '('.freeze
+      RIGHT_PARENTHESIS = ')'.freeze
+
+      # Return a parenthesized SQL statement (inline modification)
+      #
+      # @param [#to_s] sql
+      #
+      # @return [#to_s]
+      #   same instance as sql
+      #
+      # @api private
+      def self.parenthesize!(sql)
+        sql.insert(0, LEFT_PARENTHESIS) << RIGHT_PARENTHESIS
+      end
+
+    end # module Generator
+  end # module SQL
+end # module Axiom

lib/veritas/sql/generator/attribute.rb → lib/axiom/sql/generator/attribute.rb

@@ -1,6 +1,6 @@
 # encoding: utf-8
 
-module Veritas
+module Axiom
   module SQL
     module Generator
 
@@ -15,11 +15,11 @@ module Attribute
         # @return [#to_s]
         #
         # @api private
-        def visit_veritas_attribute(attribute)
+        def visit_axiom_attribute(attribute)
           visit_identifier(attribute.name)
         end
 
       end # module Attribute
     end # module Generator
   end # module SQL
-end # module Veritas
+end # module Axiom