Module: FatZebra::Util

Defined in:
lib/fat_zebra/util.rb

Constant Summary collapse

DATE_FORMAT = 
'%Y/%m/%d'.freeze

Class Method Summary collapse

Class Method Details

.compact(hash) ⇒ Hash

Remove nil value from hash

Returns:

  • (Hash) 


11
12
13
 
# File 'lib/fat_zebra/util.rb', line 11

def compact(hash)
  hash.reject { |_, value| value.nil? }
end

.encode_parameters(params) ⇒ Object

Encodes a hash of parameters in a way that’s suitable for use as query parameters in a URI or as form parameters in a request body. This mainly involves escaping special characters from parameter keys and values (e.g. ‘&`).



20
21
22
 
# File 'lib/fat_zebra/util.rb', line 20

def encode_parameters(params)
  params.map { |k, v| "#{url_encode(k)}=#{url_encode(v)}" }.join('&')
end

.format_dates_in_hash(hash) ⇒ Hash

Format Date attribute in the params

Parameters:

  • params (Hash)

Returns:

  • (Hash) —

    date formated params



60
61
62
63
64
65
66
 
# File 'lib/fat_zebra/util.rb', line 60

def format_dates_in_hash(hash)
  hash.each do |(key, value)|
    hash[key] = value.strftime(DATE_FORMAT) if value.is_a?(DateTime) || value.is_a?(Time) || value.is_a?(Date)
  end

  hash
end

.hash_except(hash, *keys) ⇒ Object 



48
49
50
51
52
 
# File 'lib/fat_zebra/util.rb', line 48

def hash_except(hash, *keys)
  copy = hash.dup
  keys.each { |key| copy.delete(key) }
  copy
end

.underscore(string) ⇒ Object

Convert string to underscore

Examples:

underscore('MyModel') => 'my_model'

Parameters:

  • (String) 


39
40
41
42
43
44
45
46
 
# File 'lib/fat_zebra/util.rb', line 39

def underscore(string)
  string
    .gsub(/::/, '/')
    .gsub(/([A-Z]+)([A-Z][a-z])/, '\1_\2')
    .gsub(/([a-z\d])([A-Z])/, '\1_\2')
    .tr('-', '_')
    .downcase
end

.url_encode(key) ⇒ Object

Encodes a string in a way that makes it suitable for use in a set of query parameters in a URI or in a set of form parameters in a request body.



28
29
30
 
# File 'lib/fat_zebra/util.rb', line 28

def url_encode(key)
  CGI.escape(key.to_s).gsub('%5B', '[').gsub('%5D', ']')
end