การอัปเดตโดยใช้มาสก์ฟิลด์

campaign = client.resource.campaign
campaign.resource_name = client.path.campaign(customer_id, campaign_id)

mask = client.field_mask.with campaign do
  campaign.status = :PAUSED
  campaign.network_settings = client.resource.network_settings do |ns|
    ns.target_search_network = false
  end
end

operation = client.operation.campaign
operation.update = campaign
operation.update_mask = mask

operation = client.operation.update_resource.campaign do |c|
  c.status = :PAUSED
  c.network_settings = client.resource.network_settings do |ns|
    ns.target_search_network = false
  end
end

mask = Google::Protobuf::FieldMask.new
mask.path = ["status", "name"]

# Creates a campaign with the proper resource name.
campaign = client.resource.campaign do |c|
  c.resource_name = client.path.campaign(customer_id, campaign_id)
end

# Update the maximize conversions field within the update block, so it's
# captured in the field mask
operation = client.operation.update_resource.campaign(campaign) do |c|
  c.maximize_conversions = client.resource.maximize_conversions
end

# Sends the operation in a mutate request that will result in a
# FieldMaskError.FIELD_HAS_SUBFIELDS error because empty MESSAGE fields cannot
# be included in a field mask.
response = client.service.campaign.mutate_campaigns(
  customer_id: customer_id,
  operations: [operation],
)

# Create the operation directly from the campaign's resource name. Don't do
# anything in the block so that the field mask is empty. You could modify other
# fields in this block, just not the message field that is intended to have a
# blank subfield. We'll add that below.
campaign_resource_name = client.path.campaign(customer_id, campaign_id)
operation = client.operation.update_resource.campaign(campaign_resource_name) {}

# Manually add the maximize conversions subfield to the field mask so the API
# knows to clear it.
operation.update_mask.paths << "maximize_conversions.target_cpa_micros"

# This operation succeeds.
response = client.service.campaign.mutate_campaigns(
  customer_id: customer_id,
  operations: [operation],
)

# Create a campaign object representing the campaign you want to change.
campaign = client.resource.campaign do |c|
  c.resource_name = client.path.campaign(customer_id, campaign_id)
end

# The field mask in this operation will include 'maximize_conversions',
# but not 'maximize_conversions.target_cpa_micros', so it will result in an
# error.
operation = client.operation.update_resource.campaign(campaign) do |c|
  c.maximize_conversions = client.resource.maximize_conversions do |mc|
    mc.target_cpa_micros = 0
  end
end

# Operation will fail since field mask is incorrect.
response = client.service.campaign.mutate_campaigns(
  customer_id: customer_id,
  operations: [operation],
end

# Create a campaign including the maximize conversions fields right away, since
# we're going to manually add them to the field mask.
campaign = client.resource.campaign do |c|
  c.resource_name = client.path.campaign(customer_id, campaign_id)
  c.maximize_conversions = client.resource.maximize_conversions do |mc|
    mc.target_cpa_micros = 0
  end
end

# Create the operation with an empty field mask. You may add a block here with
# other changes that will automatically get added to the field mask.
operation = client.operation.update_resource.campaign(campaign) {}

# Add the field to the field mask so the API knows to clear it.
operation.update_mask.paths << 'maximize_conversions.target_cpa_micros'

# Operation will succeed since we specified the correct field mask.
response = client.service.campaign.mutate_campaigns(
  customer_id: customer_id,
  operations: [operation],
end