Module: LcpRuby::DisplayHelper

Defined in:
app/helpers/lcp_ruby/display_helper.rb

Instance Method Summary collapse

Instance Method Details

#compute_item_classes(record, presenter) ⇒ Object 



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# File 'app/helpers/lcp_ruby/display_helper.rb', line 22

def compute_item_classes(record, presenter)
  rules = presenter.item_classes
  return "" if rules.empty?

  ctx = condition_context
  matching = rules.filter_map do |rule|
    ConditionEvaluator.evaluate_any(record, rule["when"], context: ctx) ? rule["class"] : nil
  rescue ConditionError => e
    raise unless Rails.env.production?
    LcpRuby.record_error(e, subsystem: "condition_eval", presenter: presenter.name)
    nil
  end
  matching.join(" ")
end

#current_model_name ⇒ Object 



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# File 'app/helpers/lcp_ruby/display_helper.rb', line 50

def current_model_name
  current_model_definition&.name if respond_to?(:current_model_definition)
end

#display_association_value(value) ⇒ Object

Default rendering for association-valued show fields / index columns (plain belongs_to, terminal-belongs_to dot-path) without an explicit renderer or partial. Non-AR values pass through untouched.



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# File 'app/helpers/lcp_ruby/display_helper.rb', line 57

def display_association_value(value)
  return value unless value.is_a?(ActiveRecord::Base)

  LcpRuby::Presenter::FieldValueResolver.association_label(value)
end

#empty_value_placeholder(value, presenter = nil) ⇒ Object 



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# File 'app/helpers/lcp_ruby/display_helper.rb', line 37

def empty_value_placeholder(value, presenter = nil)
  return value if value == false || value == 0

  if value.nil? || (value.respond_to?(:empty?) && value.empty?) || (value.is_a?(String) && value.strip.empty?)
    text = presenter&.options&.dig("empty_value") ||
           LcpRuby.configuration.empty_value ||
           I18n.t("lcp_ruby.empty_value", default: "\u2014")
    content_tag(:span, text, class: "lcp-empty-value")
  else
    value
  end
end

#format_enum_display(value, field_def, model_name = nil) ⇒ Object 



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# File 'app/helpers/lcp_ruby/display_helper.rb', line 17

def format_enum_display(value, field_def, model_name = nil)
  return value unless field_def&.enum? && value.present?
  field_def.enum_label_for(value, model_name: model_name)
end

#render_display_value(value, renderer_key, options = {}, field_def = nil, record: nil) ⇒ Object 



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# File 'app/helpers/lcp_ruby/display_helper.rb', line 3

def render_display_value(value, renderer_key, options = {}, field_def = nil, record: nil)
  return value if renderer_key.blank?

  renderer = LcpRuby::Display::RendererRegistry.renderer_for(renderer_key.to_s)
  return value unless renderer

  effective_options = options || {}
  if field_def&.enum? && !effective_options.key?("label")
    effective_options = effective_options.merge("label" => field_def.enum_label_for(value, model_name: current_model_name))
  end

  renderer.render(value, effective_options, record: record, view_context: self)
end