Class: RailsSimpleSearch::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/rails-simple-search.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(model_class, criteria = {}, config = {}) ⇒ Base

Returns a new instance of Base.



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# File 'lib/rails-simple-search.rb', line 40

def initialize(model_class, criteria={}, config={})
  @criteria = sanitize_criteria(criteria)
  @config = DEFAULT_CONFIG.merge(config)
  @config[:exact_match] = [@config[:exact_match]] unless @config[:exact_match].respond_to?(:map!)
  @config[:exact_match].map!{|em| em.to_s}

  @model_class = (model_class.is_a?(Symbol) || model_class.is_a?(String))? model_class.to_s.camelize.constantize : model_class
  load_database_handler(@model_class)
  init
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args) ⇒ Object (private) 



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# File 'lib/rails-simple-search.rb', line 78

def method_missing(method, *args)
  method_str = method.to_s
  if method_str =~ /^([^=]+)=$/
    @criteria[$1.to_s] = args[0]
  else 
    @criteria[method_str]
  end
end

Instance Attribute Details

#criteria ⇒ Object (readonly)

Returns the value of attribute criteria.



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# File 'lib/rails-simple-search.rb', line 15

def criteria
  @criteria
end

Class Method Details

.inherited(subclass) ⇒ Object 



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# File 'lib/rails-simple-search.rb', line 17

def self.inherited(subclass)
  class << subclass
     # in rails 3, the call to "form_for" invokes the model_name 
     def model_name
       ActiveModel::Name.new(self)
     end
  end
 
  # to fix an issues in rails 4.2
  subclass.send(:include, RailsSimpleSearch::FixModelName)
end

.pre_process(model_name, &procedure) ⇒ Object 



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# File 'lib/rails-simple-search.rb', line 29

def self.pre_process(model_name, &procedure)
  model_name.each { |internal_model_name| pre_process(internal_model_name, &procedure) } if model_name.is_a?(Array)
  @pre_processors ||= {}
  @pre_processors[model_name] = procedure
end

.pre_processor(model_name) ⇒ Object 



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# File 'lib/rails-simple-search.rb', line 35

def self.pre_processor(model_name)
  @pre_processors ||= {}
  @pre_processors[model_name]
end

Instance Method Details

#add_conditions(h = {}) ⇒ Object 



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# File 'lib/rails-simple-search.rb', line 63

def add_conditions(h={})
  @criteria.merge!(h.stringify_keys)
end

#append_criteria(key, value) ⇒ Object 



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# File 'lib/rails-simple-search.rb', line 72

def append_criteria(key, value)
  @criteria[key.to_s] = value
end

#count ⇒ Object 



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# File 'lib/rails-simple-search.rb', line 59

def count
  @count || 0
end

#load_database_handler(model_class) ⇒ Object 



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# File 'lib/rails-simple-search.rb', line 51

def load_database_handler(model_class)
  if model_class.ancestors.include?(ActiveRecord::Base)
    RailsSimpleSearch::Base.send(:include, RailsSimpleSearch::SqlHandler)
  else
    raise("RailsSimpleSearch only supports ActiveRecord for now")
  end
end

#remove_criteria(key) ⇒ Object 



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# File 'lib/rails-simple-search.rb', line 67

def remove_criteria(key)
  key.each { |internal_key| remove_criteria(internal_key) } if key.is_a?(Array)
  @criteria.delete(key.to_s)
end