Module: Controllers::PriceEditable

Extended by:
ActiveSupport::Concern
Included in:
OrdersController
Defined in:
app/concerns/controllers/price_editable.rb

Overview

ActiveSupport::Concern mixin: price editable.

Instance Method Summary collapse

Instance Method Details

#price_edit ⇒ void

This method returns an undefined value.

Renders the price-editing form for the context object.

Only CO and ST order types support price editing; anything else is
redirected back to the object with an error flash.



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# File 'app/concerns/controllers/price_editable.rb', line 18

def price_edit
  load_context
  authorize! :edit_prices, @context_object
  if %w[CO ST].include?(@context_object.order_type)
    render 'price_editable/price_edit'
  else
    flash[:error] = "#{@context_object.class.name} must be a CO or ST to allow price editing"
    redirect_to polymorphic_url(@context_object)
  end
end

#price_update ⇒ void

This method returns an undefined value.

Applies submitted unit price edits to the context object's line items.

Validates every submitted row first (discounted price, MSRP, optional
taxable amount); kit components and blank/invalid rows are skipped with
per-line and base errors. On success, assigns the new values, saves with
+do_not_set_totals+ so coupon recalculation does not wipe manual edits,
then refreshes header totals via +perform_db_total+.



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# File 'app/concerns/controllers/price_editable.rb', line 38

def price_update
  load_context
  authorize! :edit_prices, @context_object

  line_item_payload = params[:line_item]
  unless line_item_payload.respond_to?(:each)
    flash[:error] = 'No line item prices were submitted.'
    return render 'price_editable/price_edit'
  end

  applications = []
  line_item_payload.each do |line_item_id, values|
    next if values.blank?

    attrs = price_edit_line_item_attrs(values)
    discounted_raw = attrs['discounted_price'].to_s.strip
    price_raw = attrs['price'].to_s.strip

    line_item = @context_object.line_items.find { |li| li.id == line_item_id.to_i }
    next unless line_item
    # Kit components carry no price of their own — the kit parent owns it. The
    # form renders them read-only; guard the action too so a crafted payload
    # can't set one (see LineItem#enforce_zero_price_on_kit_component).
    next if line_item.kit_component?
    next if discounted_raw.blank? || price_raw.blank?

    new_taxable_raw = attrs['taxable_amount'].to_s.strip
    label = price_edit_line_item_label(line_item)
    row_invalid = false

    discounted_value = price_edit_parse_decimal(discounted_raw)
    if discounted_value.nil?
      line_item.errors.add(:discounted_price, 'is not a valid number')
      @context_object.errors.add(:base, "#{label}: unit discounted price is not a valid number")
      row_invalid = true
    end

    price_value = price_edit_parse_decimal(price_raw)
    if price_value.nil?
      line_item.errors.add(:price, 'is not a valid number')
      @context_object.errors.add(:base, "#{label}: unit MSRP is not a valid number")
      row_invalid = true
    end

    new_taxable_amount = nil
    if new_taxable_raw.present?
      tax_value = price_edit_parse_decimal(new_taxable_raw)
      if tax_value.nil?
        line_item.errors.add(:taxable_amount, 'is not a valid number')
        @context_object.errors.add(:base, "#{label}: unit taxable amount is not a valid number")
        row_invalid = true
      else
        new_taxable_amount = tax_value
      end
    end

    next if row_invalid

    applications << {
      line_item: line_item,
      discounted_price: discounted_value,
      price: price_value,
      taxable_amount: new_taxable_amount,
      tax_only: attrs['tax_only'].to_s == '1'
    }
  end

  if @context_object.errors.any?
    render 'price_editable/price_edit'
    return
  end

  applications.each do |app|
    li = app[:line_item]
    li.discounted_price = app[:discounted_price]
    li.price = app[:price]
    li.taxable_amount = app[:taxable_amount]
    li.tax_only = app[:tax_only]
  end

  if applications.any?
    # Saving with force_total_reset triggers set_totals → calculate_discounts, and
    # Coupon::ItemizableDiscountCalculator resets every line with discounted_price = price
    # (MSRP), wiping manual edits. Skip that path for this action only, then refresh
    # header totals via the same SQL used after a normal total reset.
    @context_object.do_not_set_totals = true if @context_object.respond_to?(:do_not_set_totals=)
    if @context_object.save
      @context_object.do_not_set_totals = false if @context_object.respond_to?(:do_not_set_totals=)
      @context_object.perform_db_total if @context_object.respond_to?(:perform_db_total)
      @context_object.reload
      redirect_to polymorphic_url(@context_object)
    else
      @context_object.do_not_set_totals = false if @context_object.respond_to?(:do_not_set_totals=)
      flash[:error] = @context_object.errors.full_messages.to_sentence.presence || 'Could not save price changes.'
      render 'price_editable/price_edit'
    end
  else
    flash[:error] = 'No prices were updated. Enter both unit discounted price and unit MSRP for each line you change.'
    render 'price_editable/price_edit'
  end
end