Module: DataMapper::Support::String

Included in:
String
Defined in:
lib/data_mapper/support/string.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object

I set the constant on the String itself to avoid inheritance chain lookups.



6
7
8
 
# File 'lib/data_mapper/support/string.rb', line 6

def self.included(base)
  base.const_set('EMPTY', ''.freeze)
end

Instance Method Details

#compress_lines ⇒ Object

Matches any whitespace (including newline) and replaces with a single space EXAMPLE:

<<QUERY.compress_lines
  SELECT name
  FROM users
QUERY
=> "SELECT name FROM users"



29
30
31
 
# File 'lib/data_mapper/support/string.rb', line 29

def compress_lines
  gsub(/\s+/, ' ').strip
end

#ensure_ends_with(part) ⇒ Object 



14
15
16
 
# File 'lib/data_mapper/support/string.rb', line 14

def ensure_ends_with(part)
  [-1,1] == part ? self : (self + part)
end

#ensure_starts_with(part) ⇒ Object 



10
11
12
 
# File 'lib/data_mapper/support/string.rb', line 10

def ensure_starts_with(part)
  [0,1] == part ? self : (part + self)
end

#ensure_wrapped_with(a, b = nil) ⇒ Object 



18
19
20
 
# File 'lib/data_mapper/support/string.rb', line 18

def ensure_wrapped_with(a, b = nil)
  ensure_starts_with(a).ensure_ends_with(b || a)
end