discourse/lib/system_message.rb

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# frozen_string_literal: true
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# Handle sending a message to a user from the system.
class SystemMessage
def self.create(recipient, type, params = {})
self.new(recipient).create(type, params)
end
def self.create_from_system_user(recipient, type, params = {})
params = params.merge(from_system: true)
self.new(recipient).create(type, params)
end
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def initialize(recipient)
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@recipient = recipient
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end
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def create(type, params = {})
method_params = params.dup
from_system = params.delete(:from_system)
target_group_names = params.delete(:target_group_names)
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params = defaults.merge(params)
title =
params[:message_title] ||
I18n.with_locale(@recipient.effective_locale) do
I18n.t("system_messages.#{type}.subject_template", params)
end
raw =
params[:message_raw] ||
I18n.with_locale(@recipient.effective_locale) do
I18n.t("system_messages.#{type}.text_body_template", params)
end
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if from_system
user = Discourse.system_user
else
user = Discourse.site_contact_user
target_group_names =
(
if Group.exists?(name: SiteSetting.site_contact_group_name)
SiteSetting.site_contact_group_name
else
nil
end
)
end
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post_creator_args = [
user,
title: title,
raw: raw,
archetype: Archetype.private_message,
target_usernames: @recipient.username,
target_group_names: target_group_names,
subtype: TopicSubtype.system_message,
skip_validations: true,
post_alert_options: params[:post_alert_options],
]
DiscourseEvent.trigger(
:before_system_message_sent,
message_type: type,
recipient: @recipient,
post_creator_args: post_creator_args,
params: method_params,
)
creator = PostCreator.new(*post_creator_args)
post = I18n.with_locale(@recipient.effective_locale) { creator.create }
DiscourseEvent.trigger(:system_message_sent, post: post, message_type: type)
raise StandardError, creator.errors.full_messages.join(" ") if creator.errors.present?
unless from_system
UserArchivedMessage.create!(user: Discourse.site_contact_user, topic: post.topic)
end
post
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end
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def defaults
{
site_name: SiteSetting.title,
username: @recipient.username,
name: @recipient.name,
name_or_username: @recipient.name.presence || @recipient.username,
user_preferences_url: "#{@recipient.full_url}/preferences",
new_user_tips:
I18n.with_locale(@recipient.effective_locale) do
I18n.t("system_messages.usage_tips.text_body_template", base_url: Discourse.base_url)
end,
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site_password: "",
base_url: Discourse.base_url,
}
end
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end