Class: DynamicDatum

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
app/models/dynamic_datum.rb

Constant Summary collapse

DYNAMIC_ATTRIBUTE_PREFIX = 
'dyn_'

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

column can be a string or array of strings



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# File 'app/models/dynamic_datum.rb', line 46

def self.related_data_value(model, id, column, template=nil)
  if column.is_a?(String)
    return model.camelize.constantize.find(id).send(column) rescue nil
  else
    final_display = template
    column.each do |c|
      value = model.camelize.constantize.find(id).send(c) rescue nil
      final_display = final_display.gsub(c, value)
    end
    return final_display.gsub('{','').gsub('}','')
  end
end

Instance Method Details



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# File 'app/models/dynamic_datum.rb', line 23

def dynamic_attributes_with_related_data(related_fields=[], use_label=false)
  key = (use_label ? :fieldLabel : :name)
  data = sorted_dynamic_attributes(:use_label => use_label)
  related_fields.each do |r|
    data.each do |k,v|
      if k == r[key]
        if r[:xtype] == 'related_combobox'
          d = r[:displayField]
          t = nil
        else
          #related_searchbox
          d = r[:display_fields].split(',')
          t = r[:display_template]
        end
        data[k] = DynamicDatum.related_data_value(r[:extraParams]['model'], v, d, t)
      end
    end
  end

  data
end

#dynamic_attributes_without_prefix ⇒ Object 



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# File 'app/models/dynamic_datum.rb', line 14

def dynamic_attributes_without_prefix
  attrs = {}
  self.dynamic_attributes.each do |k,v|
    attrs[k[DYNAMIC_ATTRIBUTE_PREFIX.length..(k.length)]] = v
  end

  attrs
end

#sorted_dynamic_attributes(options = {}) ⇒ Object

we cannot assume that dynamic attributes are stored in order in the database as this is often not the case this method will sort them according to the order of the fields in the form definition method returns an ordered hash options = => false, :use_label => false, :all => false :with_prefix = false will remove the dyn_ from the attribute key if :with_prefix is false, you may choose to use the fieldLabel as the hash key by setting :use_label = true :use_label is useful displaying data on a view screen or formatting an email :all = false will only return attributes that are in the form definition :all = true will return all attributes with those not in the form definition last you can set :all = true and :use_label = true, but attributes not in definition will use key.titleize if for some reason a form cannot be found, sorting will not be attempted



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# File 'app/models/dynamic_datum.rb', line 70

def sorted_dynamic_attributes(options={})
  options[:with_prefix] = false if options[:with_prefix].nil?
  options[:use_label] = false if options[:use_label].nil?
  options[:all] = true if options[:all].nil?

  form = self.updated_with_form !self.updated_with_form.nil?
  form = self.created_with_form if form.nil? and !self.created_with_form.nil?
  form = DynamicForm.get_form(self.reference_type) if form.nil?
  
  unless form.nil?
    fields = form.definition_object

    fields_and_values = {}
    if options[:with_prefix]
      fields.each do |f|
        k = DYNAMIC_ATTRIBUTE_PREFIX + f[:name]
        next if k == DYNAMIC_ATTRIBUTE_PREFIX + 'file' # we dont want to show file upload fields
        fields_and_values[k] = {}
        fields_and_values[k][:value] = self.dynamic_attributes[k]
        fields_and_values[k][:xtype] = f[:xtype]
      end
    else        
      fields.each do |f|
        k = f[:name]
        next if k == 'file' # we dont want to show file upload fields
        fields_and_values[k] = {}
        fields_and_values[k][:value] = self.dynamic_attributes_without_prefix[k]
        fields_and_values[k][:xtype] = f[:xtype]
        fields_and_values[k][:fieldLabel] = f[:fieldLabel] if options[:use_label]
      end
    end

    # although we try and save integers as integers, we ensure here they are integers so that combobox value is selected
    related_fields = form.related_fields
    if related_fields.length > 0
      related_fields.collect{|f| f[:name]}.each do |k|
        k = DYNAMIC_ATTRIBUTE_PREFIX+k if options[:with_prefix]
        fields_and_values[k][:value] = fields_and_values[k][:value].to_i 
      end
    end
    
    sorted = {}
    i=0
    fields_and_values.each do |key, field|        
      if options[:with_prefix]
        sorted[key] = field[:value]
      else
        index = (options[:use_label] ? field[:fieldLabel] : key)
        sorted[index] = field[:value]
      end
      i += 1
    end
    
    if options[:all]
      # append attributes not in definition
      attrs = (options[:with_prefix] ? self.dynamic_attributes : self.dynamic_attributes_without_prefix)
      keys = fields_and_values.collect{|k,v| k}

      i=0
      sorted.each do |k,v|
        index = (options[:use_label] ? keys[i] : k)
        attrs.delete(index)
        i += 1
      end

      attrs.each do |k,v|
        if options[:with_prefix]
          sorted[k] = self.dynamic_attributes[k]
        else
          index = (options[:use_label] ? k.titleize : k)
          sorted[index] = self.dynamic_attributes_without_prefix[k]
        end
      end
    end

    return sorted
  else
    return (options[:with_prefix] ? self.dynamic_attributes : self.dynamic_attributes_without_prefix)
  end
end