Module: ImageFilterDsl::Serializers::Common

Extended by:
Common
Included in:
Common, Intermediate, Json, MsgPack, Yaml
Defined in:
lib/image_filter_dsl/serializers/common.rb

Overview

Common helper methods for serializers; Include in serializer modules with ‘include Common`

Instance Method Summary collapse

Instance Method Details

#fix_hash(hash, keys = []) ⇒ Hash

‘Fix’ hash, converting keys to symbols (if keys provided) and converting values/arrays of values so any strings are normalized and cast to symbols using #normalize_sym

Parameters:

  • hash (Hash) —

    Hash to fix

  • keys (Array) (defaults to: []) —

    Optional array of key symbols to check for and convert string equivalents over to symbols if found

Returns:

  • (Hash) —

    Fixed copy of input hash



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# File 'lib/image_filter_dsl/serializers/common.rb', line 35

def fix_hash(hash,keys=[])
    h2=hash.dup
    unless keys.length == 0
        keys.each do |k|
            if !h2.has_key?(k) && h2.has_key?(k.to_s)
                h2[k] = h2[k.to_s]
                h2.delete k.to_s
            end
        end
    end
    h2.keys.each do |k|
        if h2[k].is_a?(Array)
            h2[k] = h2[k].map{|v|normalize_sym(v)}
        else
            h2[k] = normalize_sym(h2[k])
        end
    end
    return h2
end

#normalize_sym(val) ⇒ Symbol|Number|Array

Normalize symbol/value, stripping out any colons and converting to symbol; Non strings are returned unaltered; if array, logic is applied to all items

Parameters:

  • val (String|Number|Symbol|Array)

Returns:

  • (Symbol|Number|Array) —

    Normalized value



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# File 'lib/image_filter_dsl/serializers/common.rb', line 18

def normalize_sym(val)
    if val.is_a?(String)
        val.gsub(':','').to_sym
    elsif val.is_a?(Array)
        val.map{|v|normalize_sym(v)}
    else
        val
    end
end