Module: ActiveRecord::Refined::AST::JsonComparable

Included in:
JsonExcept, JsonPath, JsonSet
Defined in:
lib/active_record/refined/ast.rb

Overview

Reading inside a JSON document. Every adapter can do it and no two spell it alike: PostgreSQL walks an array of steps, SQLite has the operators with a $ path, and MySQL has the functions -- which is what this uses for that family, since MariaDB answers to the same adapter and has no -> at all.

The path is turned into a string either way, so a key with a space or a quote in it travels as itself rather than having to be refused. What a dug value may be compared with. dig_text gives text on every adapter, and what a text value compared with a number means is a question the three answer three ways: dig_text(:n) == 5 is true on SQLite, an error on PostgreSQL and true on MySQL, while dig_text(:flag) == true is true, an error, and false. cast is what says which type was meant, and then all three agree.

dig is refused the other way about: the JSON for a string carries its quotes, so dig(:name) == 'alice' is false on SQLite, an error on PostgreSQL and true on MySQL. dig_text is the one that gives the value. What bury and except give back is JSON as dig's is, and is refused the same way.

A string against dig_text, and anything the block itself built -- a column, a function, another dug value -- go through untouched.

Arithmetic and the bit operators are refused outright on both sides: dig_text(:n) + 1 is 6 on SQLite, an error on PostgreSQL and 6.0 on MariaDB, and an expression on the right does not change what the dug side is.

Instance Method Summary collapse

Instance Method Details

#between?(min, max) ⇒ Boolean

Returns:

  • (Boolean) 


547
 
# File 'lib/active_record/refined/ast.rb', line 547

def between?(min, max) = super(*check_each([min, max]))

#in?(values) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_record/refined/ast.rb', line 545

def in?(values) = super(check_each(values))

#not_between?(min, max) ⇒ Boolean

Returns:

  • (Boolean) 


548
 
# File 'lib/active_record/refined/ast.rb', line 548

def not_between?(min, max) = super(*check_each([min, max]))

#not_in?(values) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_record/refined/ast.rb', line 546

def not_in?(values) = super(check_each(values))

#~ ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/active_record/refined/ast.rb', line 556

def ~
  raise ArgumentError, arithmetic_refusal(:~)
end