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discourse/script/bulk_import/discourse_merger.rb

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# frozen_string_literal: true
require_relative "base"
class BulkImport::DiscourseMerger < BulkImport::Base
NOW ||= "now()"
CUSTOM_FIELDS = %w[category group post topic user]
# DB_NAME: name of database being merged into the current local db
# DB_HOST: hostname of database being merged
# DB_PASS: password used to access the Discourse database by the postgres user
# UPLOADS_PATH: absolute path of the directory containing "original"
# and "optimized" dirs. e.g. /home/discourse/other-site/public/uploads/default
# SOURCE_BASE_URL: base url of the site being merged. e.g. https://meta.discourse.org
# SOURCE_CDN: (optional) base url of the CDN of the site being merged.
# e.g. https://discourse-cdn-sjc1.com/business4
def initialize
db_password = ENV["DB_PASS"] || "import_password"
local_db = ActiveRecord::Base.connection_db_config.configuration_hash
@raw_connection =
PG.connect(
dbname: local_db[:database],
host: "localhost",
port: local_db[:port],
user: "postgres",
password: db_password,
)
@source_db_config = {
dbname: ENV["DB_NAME"] || "dd_demo",
host: ENV["DB_HOST"] || "localhost",
user: "postgres",
password: db_password,
}
raise "SOURCE_BASE_URL missing!" unless ENV["SOURCE_BASE_URL"]
@source_base_url = ENV["SOURCE_BASE_URL"]
@uploads_path = ENV["UPLOADS_PATH"]
@uploader = ImportScripts::Uploader.new
@source_cdn = ENV["SOURCE_CDN"] if ENV["SOURCE_CDN"]
local_version = @raw_connection.exec("select max(version) from schema_migrations")
local_version = local_version.first["max"]
source_version = source_raw_connection.exec("select max(version) from schema_migrations")
source_version = source_version.first["max"]
if local_version != source_version
raise "DB schema mismatch. Databases must be at the same migration version. Local is #{local_version}, other is #{source_version}"
end
@encoder = PG::TextEncoder::CopyRow.new
@merged_user_ids = []
@tags = {}
@tag_groups = {}
@uploads = {}
@post_actions = {}
@notifications = {}
@badge_groupings = {}
@badges = {}
@email_tokens = {}
@polls = {}
@poll_options = {}
@avatars = {}
@auto_group_ids = Group::AUTO_GROUPS.values
# add your authorized extensions here:
SiteSetting.authorized_extensions = %w[jpg jpeg png gif].join("|")
@sequences = {}
end
def start
run
ensure
@raw_connection&.close
source_raw_connection&.close
end
def execute
@first_new_user_id = @last_user_id + 1
@first_new_topic_id = @last_topic_id + 1
copy_users
copy_uploads if @uploads_path
copy_user_stuff
copy_search_data
copy_groups
copy_categories_with_no_parent
copy_categories_first_child
update_category_settings
copy_topics
copy_posts
copy_upload_references
copy_tags
copy_everything_else
copy_badges
copy_solutions
copy_solved
# TO-DO: copy_assignments
fix_user_columns
fix_category_descriptions
fix_polls
fix_featured_topic
fix_user_upload
end
def source_raw_connection
@source_raw_connection ||= PG.connect(@source_db_config)
end
def copy_users
puts "", "merging users..."
imported_ids = []
usernames_lower = User.unscoped.pluck(:username_lower).to_set
columns = User.columns.map(&:name)
sql = "COPY users (#{columns.map { |c| "\"#{c}\"" }.join(",")}) FROM STDIN"
@raw_connection.copy_data(sql, @encoder) do
source_raw_connection
.exec(
"SELECT #{columns.map { |c| "u.\"#{c}\"" }.join(",")}, e.email FROM users u INNER JOIN user_emails e ON (u.id = e.user_id AND e.primary = TRUE) WHERE u.id > 0",
)
.each do |row|
old_user_id = row["id"]&.to_i
if existing = UserEmail.where(email: row.delete("email")).first&.user
# Merge these users
@users[old_user_id] = existing.id
@merged_user_ids << old_user_id
next
else
# New user
unless usernames_lower.add?(row["username_lower"])
username = row["username"] + "_1"
username.next! until usernames_lower.add?(username.downcase)
row["username"] = username
row["username_lower"] = row["username"].downcase
end
row["id"] = (@last_user_id += 1)
@users[old_user_id] = row["id"]
@raw_connection.put_copy_data row.values
end
imported_ids << old_user_id
end
end
@sequences[User.sequence_name] = @last_user_id + 1 if @last_user_id
create_custom_fields("user", "id", imported_ids) do |old_user_id|
{ value: old_user_id, record_id: user_id_from_imported_id(old_user_id) }
end
copy_model(
EmailToken,
skip_if_merged: true,
is_a_user_model: true,
skip_processing: true,
mapping: @email_tokens,
)
copy_model(UserEmail, skip_if_merged: true, is_a_user_model: true, skip_processing: true)
end
def copy_user_stuff
copy_model(UserProfile, skip_if_merged: true, is_a_user_model: true, skip_processing: true)
[
UserStat,
UserOption,
UserVisit,
GivenDailyLike,
UserSecondFactor,
PushSubscription,
DoNotDisturbTiming,
].each { |c| copy_model(c, skip_if_merged: true, is_a_user_model: true, skip_processing: true) }
[MutedUser, IgnoredUser].each do |c|
copy_model(c, is_a_user_model: true, skip_processing: true)
end
[
UserAssociatedAccount,
Oauth2UserInfo,
SingleSignOnRecord,
EmailChangeRequest,
UserProfileView,
].each { |c| copy_model(c, skip_if_merged: true, is_a_user_model: true) }
copy_model(UserAvatar, skip_if_merged: true, is_a_user_model: true, mapping: @avatars)
end
def copy_search_data
[UserSearchData].each do |c|
copy_model_user_search_data(
c,
skip_if_merged: true,
is_a_user_model: true,
skip_processing: true,
)
end
end
def copy_groups
copy_model(
Group,
mapping: @groups,
skip_processing: true,
select_sql:
"SELECT #{Group.columns.map { |c| "\"#{c.name}\"" }.join(", ")} FROM groups WHERE automatic = false",
)
copy_model(GroupUser, skip_if_merged: true)
end
def category_exisits(cat_row)
# Categories with the same name/slug and parent are merged
parent = category_id_from_imported_id(cat_row["parent_category_id"])
existing = Category.where(slug: cat_row["slug"]).or(Category.where(name: cat_row["name"])).first
existing.id if existing && parent == existing&.parent_category_id
end
def copy_categories_with_no_parent
# Categories with no parent are copied first so child categories can reference the parent
puts "merging categories..."
columns = Category.columns.map(&:name)
imported_ids = []
last_id = Category.unscoped.maximum(:id) || 1
sql = "COPY categories (#{columns.map { |c| "\"#{c}\"" }.join(", ")}) FROM STDIN"
@raw_connection.copy_data(sql, @encoder) do
source_raw_connection
.exec(
"SELECT #{columns.map { |c| "c.\"#{c}\"" }.join(", ")}
FROM categories c
WHERE parent_category_id IS NULL",
)
.each do |row|
# If a category with the same slug or name, and the same parent, exists
existing_category = category_exisits(row)
if existing_category
@categories[row["id"].to_i] = existing_category
next
end
existing_slug = Category.where(slug: row["slug"]).first
if existing_slug
# We still need to avoid a unique index conflict on the slug when importing
# if that's the case, we'll append the imported id
row["slug"] = "#{row["slug"]}-#{row["id"]}"
end
old_user_id = row["user_id"].to_i
row["user_id"] = user_id_from_imported_id(old_user_id) || -1 if old_user_id >= 1
row["reviewable_by_group_id"] = group_id_from_imported_id(
row["reviewable_by_group_id"],
) if row["reviewable_by_group_id"]
old_id = row["id"].to_i
row["id"] = (last_id += 1)
imported_ids << old_id
@categories[old_id] = row["id"]
@raw_connection.put_copy_data(row.values)
end
end
@sequences[Category.sequence_name] = last_id + 1
create_custom_fields("category", "id", imported_ids) do |imported_id|
{ record_id: category_id_from_imported_id(imported_id), value: imported_id }
end
end
def copy_categories_first_child
# Only for categories with one parent, no granparent
puts "merging categories..."
columns = Category.columns.map(&:name)
imported_ids = []
last_id = Category.unscoped.maximum(:id) || 1
sql = "COPY categories (#{columns.map { |c| "\"#{c}\"" }.join(", ")}) FROM STDIN"
@raw_connection.copy_data(sql, @encoder) do
source_raw_connection
.exec(
"SELECT #{columns.map { |c| "c.\"#{c}\"" }.join(", ")}
FROM categories c
WHERE parent_category_id IS NOT NULL",
)
.each do |row|
# If a category with the same slug or name, and the same parent, exists
existing_category = category_exisits(row)
if existing_category
@categories[row["id"].to_i] = existing_category
next
end
existing_slug = Category.where(slug: row["slug"]).first
if existing_slug
# We still need to avoid a unique index conflict on the slug when importing
# if that's the case, we'll append the imported id
row["slug"] = "#{row["slug"]}-#{row["id"]}"
end
old_user_id = row["user_id"].to_i
row["user_id"] = user_id_from_imported_id(old_user_id) || -1 if old_user_id >= 1
row["parent_category_id"] = category_id_from_imported_id(row["parent_category_id"])
row["reviewable_by_group_id"] = group_id_from_imported_id(
row["reviewable_by_group_id"],
) if row["reviewable_by_group_id"]
old_id = row["id"].to_i
row["id"] = (last_id += 1)
imported_ids << old_id
@categories[old_id] = row["id"]
@raw_connection.put_copy_data(row.values)
end
end
@sequences[Category.sequence_name] = last_id + 1
create_custom_fields("category", "id", imported_ids) do |imported_id|
{ record_id: category_id_from_imported_id(imported_id), value: imported_id }
end
end
def fix_category_descriptions
puts "updating category description topic ids..."
@categories.each do |new_id|
next if !CategoryCustomField.where(category_id: new_id, name: "import_id").exists?
category = Category.find(new_id) if new_id.present?
if description_topic_id = topic_id_from_imported_id(category&.topic_id)
category.topic_id = description_topic_id
category.save!
end
end
end
def update_category_settings
puts "Updating category settings..."
sql = "SELECT * FROM category_settings"
output = source_raw_connection.exec(sql)
output.each do |row|
category_id = category_id_from_imported_id(row["category_id"])
next unless category_id
category = Category.find_by_id(category_id)
next if category.name == "Uncategorized"
category_settings = CategorySetting.find_by(category_id: category_id)
next unless category_settings
category_settings["require_topic_approval"] = row["require_topic_approval"]
category_settings["require_reply_approval"] = row["require_reply_approval"]
category_settings["num_auto_bump_daily"] = row["num_auto_bump_daily"]
category_settings["auto_bump_cooldown_days"] = row["auto_bump_cooldown_days"]
category_settings.save!
end
end
def copy_topics
copy_model(Topic, mapping: @topics)
[
TopicAllowedGroup,
TopicAllowedUser,
TopicEmbed,
TopicSearchData,
TopicTimer,
TopicUser,
TopicViewItem,
].each { |k| copy_model(k, skip_processing: false) }
end
def copy_posts
copy_model(Post, skip_processing: false, mapping: @posts)
copy_model(PostAction, mapping: @post_actions)
[PostReply, TopicLink, UserAction, QuotedPost].each { |k| copy_model(k) }
[PostStat, IncomingEmail, PostDetail, PostRevision].each do |k|
copy_model(k, skip_processing: true)
end
end
def copy_tags
puts "merging tags..."
columns = Tag.columns.map(&:name)
imported_ids = []
last_id = Tag.unscoped.maximum(:id) || 1
sql = "COPY tags (#{columns.map { |c| "\"#{c}\"" }.join(", ")}) FROM STDIN"
@raw_connection.copy_data(sql, @encoder) do
source_raw_connection
.exec("SELECT #{columns.map { |c| "\"#{c}\"" }.join(", ")} FROM tags")
.each do |row|
if existing = Tag.where_name(row["name"]).first
@tags[row["id"]] = existing.id
next
end
old_id = row["id"]
row["id"] = (last_id += 1)
@tags[old_id.to_s] = row["id"]
row["target_tag_id"] = row["id"]
@raw_connection.put_copy_data(row.values)
end
end
@sequences[Tag.sequence_name] = last_id + 1
[TagUser, TopicTag, CategoryTag, CategoryTagStat].each { |k| copy_model(k) }
copy_model(TagGroup, mapping: @tag_groups)
[TagGroupMembership, CategoryTagGroup, CategoryRequiredTagGroup].each do |k|
copy_model(k, skip_processing: true)
end
col_list = TagGroupPermission.columns.map { |c| "\"#{c.name}\"" }.join(", ")
copy_model(
TagGroupPermission,
skip_processing: true,
select_sql:
"SELECT #{col_list} FROM tag_group_permissions WHERE group_id NOT IN (#{@auto_group_ids.join(", ")})",
)
end
def copy_uploads
puts ""
print "copying uploads..."
FileUtils.cp_r(
File.join(@uploads_path, "."),
File.join(Rails.root, "public", "uploads", "default"),
)
columns = Upload.columns.map(&:name)
last_id = Upload.unscoped.maximum(:id) || 1
sql = "COPY uploads (#{columns.map { |c| "\"#{c}\"" }.join(", ")}) FROM STDIN"
@raw_connection.copy_data(sql, @encoder) do
source_raw_connection
.exec("SELECT #{columns.map { |c| "\"#{c}\"" }.join(", ")} FROM uploads")
.each do |row|
next if Upload.where(sha1: row["sha1"]).exists?
# make sure to get a backup with uploads then convert them to local.
# when the backup is restored to a site with s3 uploads, it will upload the items
# to the bucket
rel_filename = row["url"].gsub(%r{^/uploads/[^/]+/}, "")
# assumes if coming from amazonaws.com that we want to remove everything
# but the text after the last `/`, which should leave us the filename
rel_filename = rel_filename.gsub(%r{^//[^/]+\.amazonaws\.com/\S+uploads/[^/]+/}, "")
absolute_filename = File.join(@uploads_path, rel_filename)
old_id = row["id"]
if old_id && last_id
row["id"] = (last_id += 1)
@uploads[old_id.to_s] = row["id"]
end
old_user_id = row["user_id"].to_i
if old_user_id >= 1
row["user_id"] = user_id_from_imported_id(old_user_id)
next if row["user_id"].nil?
end
row["url"] = "/uploads/default/#{rel_filename}" if File.exist?(absolute_filename)
@raw_connection.put_copy_data(row.values)
end
end
@sequences[Upload.sequence_name] = last_id + 1
end
def copy_upload_references
puts ""
print "copying upload references..."
copy_model(UploadReference)
end
def copy_everything_else
[
PostTiming,
UserArchivedMessage,
UnsubscribeKey,
GroupMention,
Bookmark,
CategoryUser,
UserUpload,
].each { |k| copy_model(k, skip_processing: true) }
[UserHistory, UserWarning, GroupArchivedMessage].each { |k| copy_model(k) }
copy_model(Notification, mapping: @notifications)
copy_model(Poll, mapping: @polls)
copy_model(PollOption, mapping: @poll_options)
copy_model(PollVote)
[
CategoryGroup,
GroupHistory,
GroupTagNotificationDefault,
GroupCategoryNotificationDefault,
].each do |k|
col_list = k.columns.map { |c| "\"#{c.name}\"" }.join(", ")
copy_model(
k,
select_sql:
"SELECT #{col_list} FROM #{k.table_name} WHERE group_id NOT IN (#{@auto_group_ids.join(", ")})",
)
end
[CategoryFeaturedTopic, CategoryFormTemplate, CategorySearchData].each { |k| copy_model(k) }
# Copy custom fields
[CategoryCustomField].each do |k|
col_list = k.columns.map { |c| "\"#{c.name}\"" }.join(", ")
copy_model(k, select_sql: "SELECT #{col_list} FROM #{k.table_name} WHERE name != 'import_id'")
end
end
def copy_badges
copy_model(BadgeGrouping, mapping: @badge_groupings, skip_processing: true)
puts "merging badges..."
columns = Badge.columns.map(&:name)
imported_ids = []
last_id = Badge.unscoped.maximum(:id) || 1
sql = "COPY badges (#{columns.map { |c| "\"#{c}\"" }.join(", ")}) FROM STDIN"
@raw_connection.copy_data(sql, @encoder) do
source_raw_connection
.exec("SELECT #{columns.map { |c| "\"#{c}\"" }.join(", ")} FROM badges")
.each do |row|
if existing = Badge.where(name: row["name"]).first
@badges[row["id"]] = existing.id
next
end
old_id = row["id"]
row["id"] = (last_id += 1)
@badges[old_id.to_s] = row["id"]
row["badge_grouping_id"] = @badge_groupings[row["badge_grouping_id"]] if row[
"badge_grouping_id"
]
row["image_upload_id"] = upload_id_from_imported_id(row["image_upload_id"])
@raw_connection.put_copy_data(row.values)
end
end
@sequences[Badge.sequence_name] = last_id + 1
copy_model(UserBadge, is_a_user_model: true)
end
def copy_solutions
puts "merging solution posts..."
columns = PostCustomField.columns.map(&:name)
last_id = PostCustomField.unscoped.maximum(:id) || 1
sql = "COPY post_custom_fields (#{columns.map { |c| "\"#{c}\"" }.join(", ")}) FROM STDIN"
@raw_connection.copy_data(sql, @encoder) do
source_raw_connection
.exec(
"SELECT #{columns.map { |c| "\"#{c}\"" }.join(", ")} FROM post_custom_fields WHERE name = 'is_accepted_answer'",
)
.each do |row|
row["id"] = (last_id += 1)
row["post_id"] = post_id_from_imported_id(row["post_id"])
next unless row["post_id"]
@raw_connection.put_copy_data(row.values)
end
end
@sequences[PostCustomField.sequence_name] = last_id + 1 if last_id
end
def copy_solved
puts "merging solved topics..."
columns = TopicCustomField.columns.map(&:name)
last_id = TopicCustomField.unscoped.maximum(:id) || 1
sql = "COPY topic_custom_fields (#{columns.map { |c| "\"#{c}\"" }.join(", ")}) FROM STDIN"
@raw_connection.copy_data(sql, @encoder) do
source_raw_connection
.exec(
"SELECT #{columns.map { |c| "\"#{c}\"" }.join(", ")} FROM topic_custom_fields WHERE name = 'accepted_answer_post_id'",
)
.each do |row|
row["id"] = (last_id += 1)
row["topic_id"] = topic_id_from_imported_id(row["topic_id"])
row["value"] = post_id_from_imported_id(row["value"])
next unless row["topic_id"]
@raw_connection.put_copy_data(row.values)
end
end
@sequences[TopicCustomField.sequence_name] = last_id + 1 if last_id
end
def copy_model(
klass,
skip_if_merged: false,
is_a_user_model: false,
skip_processing: false,
mapping: nil,
select_sql: nil
)
puts "copying #{klass.table_name}..."
columns = klass.columns.map(&:name)
has_custom_fields = CUSTOM_FIELDS.include?(klass.name.downcase)
imported_ids = []
last_id = columns.include?("id") ? (klass.unscoped.maximum(:id) || 1) : nil
sql = "COPY #{klass.table_name} (#{columns.map { |c| "\"#{c}\"" }.join(", ")}) FROM STDIN"
@raw_connection.copy_data(sql, @encoder) do
source_raw_connection
.exec(
select_sql ||
"SELECT #{columns.map { |c| "\"#{c}\"" }.join(", ")} FROM #{klass.table_name}",
)
.each do |row|
if row["user_id"]
old_user_id = row["user_id"].to_i
next if skip_if_merged && @merged_user_ids.include?(old_user_id)
if is_a_user_model
next if old_user_id < 1
next if user_id_from_imported_id(old_user_id).nil?
# We import non primary emails as long as they are not already in use as primary
if klass.table_name == "user_emails" && row["primary"] == "f" &&
UserEmail.where(email: row["email"]).first
next
end
end
if old_user_id >= 1
row["user_id"] = user_id_from_imported_id(old_user_id)
if is_a_user_model && row["user_id"].nil?
raise "user_id nil for user id '#{old_user_id}'"
end
next if row["user_id"].nil? # associated record for a deleted user
end
end
row["upload_id"] = upload_id_from_imported_id(row["upload_id"]) if row["upload_id"]
row["group_id"] = group_id_from_imported_id(row["group_id"]) if row["group_id"]
row["category_id"] = category_id_from_imported_id(row["category_id"]) if row[
"category_id"
]
if row["category_id"].nil? &&
(
klass.table_name == "category_custom_fields" ||
klass.table_name == "category_featured_topics"
)
next
end
if row["topic_id"] && klass != Category
row["topic_id"] = topic_id_from_imported_id(row["topic_id"])
next if row["topic_id"].nil?
end
if row["post_id"]
row["post_id"] = post_id_from_imported_id(row["post_id"])
next if row["post_id"].nil?
end
row["tag_id"] = tag_id_from_imported_id(row["tag_id"]) if row["tag_id"]
row["tag_group_id"] = tag_group_id_from_imported_id(row["tag_group_id"]) if row[
"tag_group_id"
]
row["deleted_by_id"] = user_id_from_imported_id(row["deleted_by_id"]) if row[
"deleted_by_id"
]
row["badge_id"] = badge_id_from_imported_id(row["badge_id"]) if row["badge_id"]
row["granted_title_badge_id"] = badge_id_from_imported_id(
row["granted_title_badge_id"],
) if row["granted_title_badge_id"]
if row["bookmarkable_id"]
row["bookmarkable_id"] = post_id_from_imported_id(row["bookmarkable_id"]) if row[
"bookmarkable_type"
] == "Post"
row["bookmarkable_id"] = topic_id_from_imported_id(row["bookmarkable_id"]) if row[
"bookmarkable_type"
] == "Topic"
end
row["poll_id"] = poll_id_from_imported_id(row["poll_id"]) if row["poll_id"]
row["poll_option_id"] = poll_option_id_from_imported_id(row["poll_option_id"]) if row[
"poll_option_id"
]
row["raw"] = process_raw(row["raw"], row["topic_id"]) if row["raw"] && row["topic_id"]
row["flair_group_id"] = group_id_from_imported_id(row["flair_group_id"]) if row[
"flair_group_id"
]
row["muted_user_id"] = user_id_from_imported_id(row["muted_user_id"]) if row[
"muted_user_id"
]
if row["user_profile_id"]
row["user_profile_id"] = user_id_from_imported_id(row["user_id"])
next unless row["user_profile_id"]
end
row["ignored_user_id"] = user_id_from_imported_id(row["ignored_user_id"]) if row[
"ignored_user_id"
]
if klass.table_name == "user_uploads"
next if row["upload_id"].nil?
end
row["flair_upload_id"] = upload_id_from_imported_id(row["flair_upload_id"]) if row[
"flair_upload_id"
]
row["uploaded_logo_id"] = upload_id_from_imported_id(row["uploaded_logo_id"]) if row[
"uploaded_logo_id"
]
row["uploaded_logo_dark_id"] = upload_id_from_imported_id(
row["uploaded_logo_dark_id"],
) if row["uploaded_logo_dark_id"]
row["uploaded_background_id"] = upload_id_from_imported_id(
row["uploaded_background_id"],
) if row["uploaded_background_id"]
row["profile_background_upload_id"] = upload_id_from_imported_id(
row["profile_background_upload_id"],
) if row["profile_background_upload_id"]
row["card_background_upload_id"] = upload_id_from_imported_id(
row["card_background_upload_id"],
) if row["card_background_upload_id"]
if klass.table_name == "upload_references"
next unless row["upload_id"]
if row["target_type"] == "UserProfile"
row["target_id"] = user_id_from_imported_id(row["target_id"])
elsif row["target_type"] = "UserAvatar"
row["target_id"] = avatar_id_from_imported_id(row["target_id"])
elsif row["target_type"] = "User"
row["target_id"] = user_id_from_imported_id(row["target_id"])
elsif row["target_type"] = "Post"
row["target_id"] = post_id_from_imported_id(row["target_id"])
# TO-DO: add other target types
else
next
end
next unless row["target_id"]
end
old_id = row["id"].to_i
if old_id && last_id
row["id"] = (last_id += 1)
imported_ids << old_id if has_custom_fields
mapping[old_id] = row["id"] if mapping
end
if skip_processing
@raw_connection.put_copy_data(row.values)
else
process_method_name = "process_#{klass.name.underscore}"
processed =
(
if respond_to?(process_method_name)
send(process_method_name, HashWithIndifferentAccess.new(row))
else
row
end
)
@raw_connection.put_copy_data columns.map { |c| processed[c] } if processed
end
end
end
@sequences[klass.sequence_name] = last_id + 1 if last_id
if has_custom_fields
id_mapping_method_name = "#{klass.name.downcase}_id_from_imported_id".freeze
return unless respond_to?(id_mapping_method_name)
create_custom_fields(klass.name.downcase, "id", imported_ids) do |imported_id|
{ record_id: send(id_mapping_method_name, imported_id), value: imported_id }
end
end
end
def copy_model_user_search_data(
klass,
skip_if_merged: false,
is_a_user_model: false,
skip_processing: false,
mapping: nil,
select_sql: nil
)
puts "copying #{klass.table_name}..."
columns = klass.columns.map(&:name)
has_custom_fields = CUSTOM_FIELDS.include?(klass.name.downcase)
imported_ids = []
last_id = columns.include?("id") ? (klass.unscoped.maximum(:id) || 1) : nil
sql = "COPY #{klass.table_name} (#{columns.map { |c| "\"#{c}\"" }.join(", ")}) FROM STDIN"
@raw_connection.copy_data(sql, @encoder) do
source_raw_connection
.exec(
select_sql ||
"SELECT #{columns.map { |c| "\"#{c}\"" }.join(", ")} FROM #{klass.table_name}",
)
.each do |row|
if row["user_id"]
old_user_id = row["user_id"].to_i
next if skip_if_merged && @merged_user_ids.include?(old_user_id)
if is_a_user_model
next if old_user_id < 1
next if user_id_from_imported_id(old_user_id).nil?
end
if old_user_id >= 1
row["user_id"] = user_id_from_imported_id(old_user_id)
if is_a_user_model && row["user_id"].nil?
raise "user_id nil for user id '#{old_user_id}'"
end
next if row["user_id"].nil? # associated record for a deleted user
end
end
exists = UserSearchData.where(user_id: row["user_id"])
@raw_connection.put_copy_data(row.values) if exists.nil? || exists.empty?
end
end
@sequences[klass.sequence_name] = last_id + 1 if last_id
if has_custom_fields
id_mapping_method_name = "#{klass.name.downcase}_id_from_imported_id".freeze
return unless respond_to?(id_mapping_method_name)
create_custom_fields(klass.name.downcase, "id", imported_ids) do |imported_id|
{ record_id: send(id_mapping_method_name, imported_id), value: imported_id }
end
end
end
def process_topic(topic)
return nil if topic["category_id"].nil? && topic["archetype"] != Archetype.private_message
topic["last_post_user_id"] = user_id_from_imported_id(topic["last_post_user_id"]) || -1
topic["featured_user1_id"] = user_id_from_imported_id(topic["featured_user1_id"]) || -1
topic["featured_user2_id"] = user_id_from_imported_id(topic["featured_user2_id"]) || -1
topic["featured_user3_id"] = user_id_from_imported_id(topic["featured_user3_id"]) || -1
topic["featured_user4_id"] = user_id_from_imported_id(topic["featured_user4_id"]) || -1
topic
end
def process_post(post)
post["last_editor_id"] = user_id_from_imported_id(post["last_editor_id"]) || -1
post["reply_to_user_id"] = user_id_from_imported_id(post["reply_to_user_id"]) || -1
post["locked_by_id"] = user_id_from_imported_id(post["locked_by_id"]) || -1
post["image_upload_id"] = upload_id_from_imported_id(post["image_upload_id"])
post
end
def process_post_reply(post_reply)
post_reply["reply_post_id"] = post_id_from_imported_id(
post_reply["reply_post_id"],
) if post_reply["reply_post_id"]
post_reply
end
def process_quoted_post(quoted_post)
quoted_post["quoted_post_id"] = post_id_from_imported_id(
quoted_post["quoted_post_id"],
) if quoted_post["quoted_post_id"]
return nil if quoted_post["quoted_post_id"].nil?
quoted_post
end
def process_post_action(post_action)
return nil unless post_action["post_id"].present?
post_action["related_post_id"] = post_id_from_imported_id(post_action["related_post_id"])
post_action["deferred_by_id"] = user_id_from_imported_id(post_action["deferred_by_id"])
post_action["agreed_by_id"] = user_id_from_imported_id(post_action["agreed_by_id"])
post_action["disagreed_by_id"] = user_id_from_imported_id(post_action["disagreed_by_id"])
post_action
end
def process_user_action(user_action)
user_action["target_topic_id"] = topic_id_from_imported_id(
user_action["target_topic_id"],
) if user_action["target_topic_id"]
user_action["target_post_id"] = post_id_from_imported_id(
user_action["target_post_id"],
) if user_action["target_post_id"]
user_action["target_user_id"] = user_id_from_imported_id(
user_action["target_user_id"],
) if user_action["target_user_id"]
user_action["acting_user_id"] = user_id_from_imported_id(
user_action["acting_user_id"],
) if user_action["acting_user_id"]
user_action["queued_post_id"] = post_id_from_imported_id(
user_action["queued_post_id"],
) if user_action["queued_post_id"]
user_action
end
def process_tag_group(tag_group)
tag_group["parent_tag_id"] = tag_id_from_imported_id(tag_group["parent_tag_id"]) if tag_group[
"parent_tag_id"
]
tag_group
end
def process_category_group(category_group)
return nil if category_group["category_id"].nil? || category_group["group_id"].nil?
category_group
end
def process_group_user(group_user)
if @auto_group_ids.include?(group_user["group_id"].to_i) &&
@merged_user_ids.include?(group_user["user_id"].to_i)
return nil
end
return nil if group_user["user_id"].to_i < 1
group_user
end
def process_group_history(group_history)
group_history["acting_user_id"] = user_id_from_imported_id(
group_history["acting_user_id"],
) if group_history["acting_user_id"]
group_history["target_user_id"] = user_id_from_imported_id(
group_history["target_user_id"],
) if group_history["target_user_id"]
group_history
end
def process_group_archived_message(gam)
return nil unless gam["topic_id"].present? && gam["group_id"].present?
gam
end
def process_topic_link(topic_link)
topic_link["link_topic_id"] = topic_id_from_imported_id(
topic_link["link_topic_id"],
) if topic_link["link_topic_id"]
topic_link["link_post_id"] = post_id_from_imported_id(topic_link["link_post_id"]) if topic_link[
"link_post_id"
]
topic_link
end
def process_user_avatar(user_avatar)
user_avatar["custom_upload_id"] = upload_id_from_imported_id(
user_avatar["custom_upload_id"],
) if user_avatar["custom_upload_id"]
user_avatar["gravatar_upload_id"] = upload_id_from_imported_id(
user_avatar["gravatar_upload_id"],
) if user_avatar["gravatar_upload_id"]
unless user_avatar["custom_upload_id"].present? || user_avatar["gravatar_upload_id"].present?
return nil
end
user_avatar
end
def process_user_history(user_history)
return nil unless user_history["group_id"].present?
user_history["acting_user_id"] = user_id_from_imported_id(
user_history["acting_user_id"],
) if user_history["acting_user_id"]
user_history["target_user_id"] = user_id_from_imported_id(
user_history["target_user_id"],
) if user_history["target_user_id"]
user_history
end
def process_user_warning(user_warning)
user_warning["created_by_id"] = user_id_from_imported_id(
user_warning["created_by_id"],
) if user_warning["created_by_id"]
return nil unless user_warning["created_by_id"].present?
user_warning
end
def process_notification(notification)
notification["post_action_id"] = post_action_id_from_imported_id(
notification["post_action_id"],
) if notification["post_action_id"]
notification
end
def process_oauth2_user_info(r)
return nil if Oauth2UserInfo.where(uid: r["uid"], provider: r["provider"]).exists?
r
end
def process_user_associated_account(r)
if UserAssociatedAccount.where(provider_uid: r["uid"], provider_name: r["provider"]).exists?
return nil
end
r
end
def process_single_sign_on_record(r)
return nil if SingleSignOnRecord.where(external_id: r["external_id"]).exists?
r
end
def process_user_badge(user_badge)
user_badge["granted_by_id"] = user_id_from_imported_id(
user_badge["granted_by_id"],
) if user_badge["granted_by_id"]
user_badge["notification_id"] = notification_id_from_imported_id(
user_badge["notification_id"],
) if user_badge["notification_id"]
if UserBadge.where(user_id: user_badge["user_id"], badge_id: user_badge["badge_id"]).exists?
return nil
end
user_badge
end
def process_email_change_request(ecr)
ecr["old_email_token_id"] = email_token_id_from_imported_id(ecr["old_email_token_id"]) if ecr[
"old_email_token_id"
]
ecr["new_email_token_id"] = email_token_id_from_imported_id(ecr["new_email_token_id"]) if ecr[
"new_email_token_id"
]
ecr["requested_by_user_id"] = user_id_from_imported_id(ecr["requested_by_user_id"]) if ecr[
"requested_by_user_id"
]
ecr
end
def process_tag_user(x)
return nil if TagUser.where(tag_id: x["tag_id"], user_id: x["user_id"]).exists?
x
end
def process_topic_tag(x)
return nil if TopicTag.where(topic_id: x["topic_id"], tag_id: x["tag_id"]).exists?
x
end
def process_category_tag(x)
return nil if CategoryTag.where(category_id: x["category_id"], tag_id: x["tag_id"]).exists?
x
end
def process_category_tag_stat(x)
return nil if CategoryTagStat.where(category_id: x["category_id"], tag_id: x["tag_id"]).exists?
x
end
def process_raw(raw, topic_id)
new_raw = raw.dup
quote_pattern = /\[quote=\"(.*)?topic:(\d+)(.*)?\"\]/im
if new_raw.match?(quote_pattern)
new_raw.gsub!(/(\[quote=\"(.*)?topic:)(\d+)((.*)?\"\])/i) { "#{$1}#{topic_id}#{$4}" }
end
new_url = Discourse.base_url
topic_url_pattern = %r{#{@source_base_url}/t/([^/]*[^\d/][^/]*)/(\d+)/?(\d+)?}im
if new_raw.match?(topic_url_pattern)
new_raw.gsub!(topic_url_pattern) do
import_topic_id = topic_id_from_imported_id($2)
"#{new_url}\/t\/#{$1}\/#{import_topic_id}\/#{$3}"
end
end
new_raw
end
def user_id_from_imported_id(id)
return id if id.to_i < 1
super(id)
end
def group_id_from_imported_id(id)
return id if @auto_group_ids.include?(id&.to_i)
super(id)
end
def tag_id_from_imported_id(id)
@tags[id.to_s]
end
def tag_group_id_from_imported_id(id)
@tag_groups[id.to_s]
end
def upload_id_from_imported_id(id)
@uploads[id.to_s]
end
def post_action_id_from_imported_id(id)
@post_actions[id.to_s]
end
def badge_id_from_imported_id(id)
@badges[id.to_s]
end
def notification_id_from_imported_id(id)
@notifications[id.to_s]
end
def email_token_id_from_imported_id(id)
@email_tokens[id.to_s]
end
def poll_id_from_imported_id(id)
@polls[id.to_s]
end
def poll_option_id_from_imported_id(id)
@poll_options[id.to_s]
end
def avatar_id_from_imported_id(id)
@avatars[id.to_s]
end
def fix_primary_keys
@sequences.each do |sequence_name, val|
sql = "SELECT setval('#{sequence_name}', #{val})"
@raw_connection.exec(sql)
end
end
def fix_user_columns
puts "updating foreign keys in the users table..."
User
.where("id >= ?", @first_new_user_id)
.find_each do |u|
arr = []
sql = "UPDATE users SET".dup
if new_approved_by_id = user_id_from_imported_id(u.approved_by_id)
arr << " approved_by_id = #{new_approved_by_id}"
end
if new_primary_group_id = group_id_from_imported_id(u.primary_group_id)
arr << " primary_group_id = #{new_primary_group_id}"
end
if new_notification_id = notification_id_from_imported_id(u.seen_notification_id)
arr << " seen_notification_id = #{new_notification_id}"
end
next if arr.empty?
sql << arr.join(", ")
sql << " WHERE id = #{u.id}"
@raw_connection.exec(sql)
end
end
def fix_polls
puts "Adding polls custom fields..."
@polls.each do |old_poll_id, new_poll_id|
post_id = Poll.find_by_id(new_poll_id).post_id
post = Post.find_by_id(post_id)
post.custom_fields[DiscoursePoll::HAS_POLLS] = true
post.save_custom_fields(true)
end
end
def fix_featured_topic
puts "Updating featured topic ids..."
User
.where("id >= ?", @first_new_user_id)
.find_each do |u|
profile = UserProfile.find_by(user_id: u.id)
next if profile.nil?
profile.featured_topic_id = topic_id_from_imported_id(profile.featured_topic_id)
profile.save!
end
end
def fix_user_upload
puts "Updating avatar ids..."
# Users have a column "uploaded_avatar_id" which needs to be mapped now.
User
.where("id >= ?", @first_new_user_id)
.find_each do |u|
if u.uploaded_avatar_id
u.uploaded_avatar_id = upload_id_from_imported_id(u.uploaded_avatar_id)
u.save! unless u.uploaded_avatar_id.nil?
end
end
end
end
BulkImport::DiscourseMerger.new.start
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