Class: String

Inherits:
Object
  • Object
show all
Defined in:
lib/core_ext/string.rb

Constant Summary collapse

POSTGRESQL_RESERVED_WORDS = 
%W{ ALL ANALYSE ANALYZE AND ANY ARRAY AS ASC ASYMMETRIC AUTHORIZATION BETWEEN BINARY BOTH CASE CAST 
CHECK COLLATE COLUMN CONSTRAINT CREATE CROSS CURRENT_DATE CURRENT_ROLE CURRENT_TIME CURRENT_TIMESTAMP 
CURRENT_USER DEFAULT DEFERRABLE DESC DISTINCT DO ELSE END EXCEPT FALSE FOR FOREIGN FREEZE FROM FULL
GRANT GROUP HAVING ILIKE IN INITIALLY INNER INTERSECT INTO IS ISNULL JOIN LEADING LEFT LIKE LIMIT LOCALTIME 
LOCALTIMESTAMP NATURAL NEW NOT NOTNULL NULL OFF OFFSET OLD ON ONLY OR ORDER OUTER OVERLAPS PLACING PRIMARY 
REFERENCES RIGHT SELECT SESSION_USER SIMILAR SOME SYMMETRIC TABLE THEN TO TRAILING TRUE UNION UNIQUE USER 
USING VERBOSE WHEN WHERE }

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.random(length = 10) ⇒ Object 



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# File 'lib/core_ext/string.rb', line 18

def self.random(length=10)
('a'..'z').sort_by {rand}[0,length].join
end

Instance Method Details

#blank? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/core_ext/string.rb', line 14

def blank?
  self !~ /\S/
end

#normalize ⇒ Object 



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# File 'lib/core_ext/string.rb', line 22

def normalize
  str = self.downcase
  return '' if str.blank?
  n = str.force_encoding("UTF-8")
  n.gsub!(/[àáâãäåāă]/,   'a')
  n.gsub!(/æ/,            'ae')
  n.gsub!(/[ďđ]/,          'd')
  n.gsub!(/[çćčĉċ]/,       'c')
  n.gsub!(/[èéêëēęěĕė]/,   'e')
  n.gsub!(/ƒ/,             'f')
  n.gsub!(/[ĝğġģ]/,        'g')
  n.gsub!(/[ĥħ]/,          'h')
  n.gsub!(/[ììíîïīĩĭ]/,    'i')
  n.gsub!(/[įıijĵ]/,        'j')
  n.gsub!(/[ķĸ]/,          'k')
  n.gsub!(/[łľĺļŀ]/,       'l')
  n.gsub!(/[ñńňņʼnŋ]/,      'n')
  n.gsub!(/[òóôõöøōőŏŏ]/,  'o')
  n.gsub!(/œ/,            'oe')
  n.gsub!(/ą/,             'q')
  n.gsub!(/[ŕřŗ]/,         'r')
  n.gsub!(/[śšşŝș]/,       's')
  n.gsub!(/[ťţŧț]/,        't')
  n.gsub!(/[ùúûüūůűŭũų]/,  'u')
  n.gsub!(/ŵ/,             'w')
  n.gsub!(/[ýÿŷ]/,         'y')
  n.gsub!(/[žżź]/,         'z')
  n.gsub!(/[ÀÁÂÃÄÅĀĂ]/i,    'A')
  n.gsub!(/Æ/i,            'AE')
  n.gsub!(/[ĎĐ]/i,          'D')
  n.gsub!(/[ÇĆČĈĊ]/i,       'C')
  n.gsub!(/[ÈÉÊËĒĘĚĔĖ]/i,   'E')
  n.gsub!(/Ƒ/i,             'F')
  n.gsub!(/[ĜĞĠĢ]/i,        'G')
  n.gsub!(/[ĤĦ]/i,          'H')
  n.gsub!(/[ÌÌÍÎÏĪĨĬ]/i,    'I')
  n.gsub!(/[IJĴ]/i,          'J')
  n.gsub!(/[Ķĸ]/i,          'J')
  n.gsub!(/[ŁĽĹĻĿ]/i,       'L')
  n.gsub!(/[ÑŃŇŅʼnŊ]/i,      'M')
  n.gsub!(/[ÒÓÔÕÖØŌŐŎŎ]/i,  'N')
  n.gsub!(/Œ/i,            'OE')
  n.gsub!(/Ą/i,             'Q')
  n.gsub!(/[ŔŘŖ]/i,         'R')
  n.gsub!(/[ŚŠŞŜȘ]/i,       'S')
  n.gsub!(/[ŤŢŦȚ]/i,        'T')
  n.gsub!(/[ÙÚÛÜŪŮŰŬŨŲ]/i,  'U')
  n.gsub!(/Ŵ/i,             'W')
  n.gsub!(/[ÝŸŶ]/i,         'Y')
  n.gsub!(/[ŽŻŹ]/i,         'Z')
  n
end

#sanitize ⇒ Object 



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# File 'lib/core_ext/string.rb', line 75

def sanitize
 return if self.blank?
 self.gsub(/<[^>]+>/m,'').normalize.downcase.gsub(/&.+?;/,'-').
      gsub(/[^a-z0-9 _-]/,'-').strip.gsub(/\s+/,'-').gsub(/-+/,'-').
      gsub(/-/,' ').strip.gsub(/ /,'-').gsub(/-/,'_')
end

#sanitize_column_name ⇒ Object 



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# File 'lib/core_ext/string.rb', line 82

def sanitize_column_name
  temporal_name = self.sanitize
  if temporal_name !~ /^[a-zA-Z_]/ || POSTGRESQL_RESERVED_WORDS.include?(self.upcase)
    return '_' + temporal_name
  else
    temporal_name
  end
end