Class: Dorsale::SmallData::Filter

Inherits:
Object
  • Object
show all
Defined in:
app/filters/dorsale/small_data/filter.rb

Instance Method Summary collapse

Constructor Details

#initialize(jar) ⇒ Filter

Returns a new instance of Filter.



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# File 'app/filters/dorsale/small_data/filter.rb', line 2

def initialize(jar)
  @jar = jar
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args) ⇒ Object 



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# File 'app/filters/dorsale/small_data/filter.rb', line 42

def method_missing(method, *args)
  key = method.to_s

  if strategies.key?(key)
    get(key)
  else
    super
  end
end

Instance Method Details

#apply(query) ⇒ Object 



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# File 'app/filters/dorsale/small_data/filter.rb', line 30

def apply(query)
  strategies.each do |key, strategy|
    value = get(key)

    next if value.blank?

    query = strategy.apply(query, value)
  end

  return query
end

#get(key) ⇒ Object 



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# File 'app/filters/dorsale/small_data/filter.rb', line 16

def get(key)
  read[key.to_s]
end

#read ⇒ Object 



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# File 'app/filters/dorsale/small_data/filter.rb', line 10

def read
  JSON.parse @jar["filters"].to_s
rescue JSON::ParserError
  {}
end

#set(key, value) ⇒ Object 



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# File 'app/filters/dorsale/small_data/filter.rb', line 20

def set(key, value)
  array           = read
  array[key.to_s] = value
  store(array)
end

#store(filters) ⇒ Object 



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# File 'app/filters/dorsale/small_data/filter.rb', line 6

def store(filters)
  @jar["filters"] = filters.to_json
end

#strategies ⇒ Object 



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# File 'app/filters/dorsale/small_data/filter.rb', line 26

def strategies
  self.class::STRATEGIES
end