Class: Linkage::Viewer::UI::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/linkage/viewer/ui/base.rb

Direct Known Subclasses

Console

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ Base

Returns a new instance of Base.



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# File 'lib/linkage/viewer/ui/base.rb', line 5

def initialize(config)
  @config = config
  @result_set = @config.result_set
  @groups_dataset = @result_set.groups_dataset
  @group_count = @groups_dataset.count
  @datasets = @config.datasets_with_applied_expectations

  common_fields = [[], []]
  @config.expectations.each do |exp|
    if exp.kind != :filter
      lhs_data = exp.lhs.data
      rhs_data = exp.rhs.data
      if exp.lhs.side == :lhs
        common_fields[0] << lhs_data
        common_fields[1] << rhs_data
      else
        common_fields[1] << lhs_data
        common_fields[0] << rhs_data
      end
    end
  end

  all_fields = if @config.visual_comparisons.empty?
    [
      common_fields[0] | @datasets[0].field_set.values,
      common_fields[1] | @datasets[1].field_set.values
    ]
  else
    @config.visual_comparisons.inject(common_fields.dup) do |arr, vc|
      if vc.lhs.side == :lhs
        arr[0].push(vc.lhs.data)
        arr[1].push(vc.rhs.data)
      else
        arr[1].push(vc.lhs.data)
        arr[0].push(vc.rhs.data)
      end
      arr
    end
  end

  @field_expressions = [[], []]
  @field_names = [[], []]
  all_fields.each_with_index do |fields, i|
    fields.each do |field|
      expr = field.to_expr(@datasets[i].adapter_scheme)
      if expr.is_a?(Sequel::SQL::Function)
        name = field.name
        expr = expr.as(name)
      else
        name = expr
      end
      @field_expressions[i] << expr
      @field_names[i] << name
    end
  end
end

Instance Method Details

#start ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/linkage/viewer/ui/base.rb', line 62

def start
  raise NotImplementedError
end