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v0.39 Add SQLite table for tracking successful post importation; Split out user import into three separate callable methods; require sys/proctable

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David Sainty 2024-08-17 01:06:25 +10:00
parent 7b0a45cb89
commit 5002b90712
1 changed files with 87 additions and 27 deletions
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102
gossamer_forums.rb
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@ -1,7 +1,7 @@
# Federated Computer, Inc.
# David Sainty <saint@federated.computer> 2024 A.D.
# Gossamer Threads to Discourse -- Migration-Import Script
# v0.38 Attempt to reimplement with mutex support for interrupting and resuming during post import. This will have to be tested / validated
# v0.39 Add SQLite table for tracking successful post importation; Split out user import into three separate callable methods; require sys/proctable
require 'mysql2'
require 'open-uri'
@ -16,6 +16,8 @@ require 'time'
require 'concurrent'
require 'sys/proctable'
require File.expand_path("../../../../config/environment", __FILE__)
# require_relative '../base'
require File.expand_path("../../../../script/import_scripts/base", __FILE__)
@ -88,7 +90,6 @@ class GossamerForumsImporter < ImportScripts::Base
topic_id INTEGER PRIMARY KEY,
post_count INTEGER DEFAULT 0
);
SQL
@db.execute <<-SQL
CREATE TABLE IF NOT EXISTS user_topic_count (
@ -126,6 +127,12 @@ class GossamerForumsImporter < ImportScripts::Base
personal_id INTEGER
);
SQL
@db.execute <<-SQL
CREATE TABLE IF NOT EXISTS topic_import_status (
post_id INTEGER PRIMARY KEY,
status INTEGER DEFAULT 0
);
SQL
end
def insert_user_id_mapping(old_user_id, new_user_id)
@ -271,6 +278,22 @@ class GossamerForumsImporter < ImportScripts::Base
@db.execute "INSERT OR REPLACE INTO highest_processed_personal_id (id, personal_id) VALUES (1, ?)", personal_id
end
# Check if post_id exists and its status
def post_status(post_id)
result = @db.execute("SELECT status FROM topic_import_status WHERE post_id = ?", post_id).flatten.first
result.nil? ? nil : result.to_i
end
# Mark post_id as complete
def mark_post_as_complete(post_id)
@db.execute("INSERT OR REPLACE INTO topic_import_status (post_id, status) VALUES (?, 1)", post_id)
end
# Mark post_id as failed
def mark_post_as_failed(post_id)
@db.execute("INSERT OR REPLACE INTO topic_import_status (post_id, status) VALUES (?, 0)", post_id)
end
# Execute an SQL query on the Gossamer Forums database
def execute_query(query)
@mysql_client.query(query, as: :hash)
@ -547,7 +570,7 @@ class GossamerForumsImporter < ImportScripts::Base
# Import users from Gossamer Forums to Discourse
def import_users
puts "Importing users..."
puts "Importing Users..."
users = []
# Fetch all users from Gossamer Forums
@ -576,22 +599,44 @@ class GossamerForumsImporter < ImportScripts::Base
# insert_user_id_mapping(user[:id], user.id)
user
end
end
# For each user, add user ID mapping to SQLite now that we know what the Discourse user ID is, ... and append user bio and import user files
# Generate SQLite user ID mapping between Discourse and Gossamer
def generate_user_id_mapping
puts "Generating User ID Mapping..."
# For each user, add user ID mapping to SQLite now that we know what the Discourse user ID is
users.each do |user|
# discourse_username = sanitize_username(user[:username], user[:email], user[:name])
discourse_username = user[:username]
discourse_user = User.find_by(username: discourse_username)
if discourse_user.nil?
puts "User #{user[:username]} --> #{discourse_username} not found in Discourse. Skipping file import."
puts "User #{user[:username]} --> #{discourse_username} not found in Discourse. Skipping user mapping addition."
next
end
# # Store the user ID mapping
# Store the user ID mapping
# @user_id_map[user[:id]] = discourse_user.id
puts "for insert_user_id_mapping: user[:id] #{user[:id]} discourse_user.id #{discourse_user.id}"
insert_user_id_mapping(user[:id], discourse_user.id)
end
end
# Import and set user Bio and Images
def set_user_bio_images
puts "Setting User Bio and Images..."
# For each user, append user bio and import user files
users.each do |user|
# discourse_username = sanitize_username(user[:username], user[:email], user[:name])
discourse_username = user[:username]
discourse_user = User.find_by(username: discourse_username)
if discourse_user.nil?
puts "User #{user[:username]} --> #{discourse_username} not found in Discourse. Skipping bio-image setting."
next
end
# Ensure user profile exists and bio_raw is a string
discourse_user.user_profile ||= UserProfile.new(user_id: discourse_user.id)
@ -967,7 +1012,7 @@ class GossamerForumsImporter < ImportScripts::Base
# Get list of TOPICS / OP posts, i.e. post ids that have no parent / root id - SELECT post_id FROM gforum_Post WHERE post_root_id = 0;
# The query selects post_ids from gforum_Post where post_root_id is 0, meaning these posts are the topic starters (OPs).
# It also ensures that we only process posts with a post_id greater than the last processed one, allowing for resumption.
parent_post_ids = execute_query("SELECT post_id FROM gforum_Post WHERE post_root_id = 0 AND post_id > #{fetch_highest_processed_post_id} ORDER BY post_id ASC")
parent_post_ids = execute_query("SELECT post_id FROM gforum_Post WHERE post_root_id = 0 ORDER BY post_id ASC")
parent_post_count = parent_post_ids.count
batch_size = 100 # Set our batch size for number of posts to import in a single batch
@ -984,18 +1029,30 @@ class GossamerForumsImporter < ImportScripts::Base
# Dynamically calculate the pool size based on system load to optimise performance
pool_size = calculate_dynamic_pool_size
pool = Concurrent::FixedThreadPool.new(pool_size) # Create a thread pool with the calculated size.
pool = Concurrent::FixedThreadPool.new(pool_size) # Create a thread pool with the calculated size
# Process each post in the current batch
while current_post_batch < current_post_batch_max
post_id = parent_post_ids[current_post_batch] # Fetch the post_id for the current post
# Check if the post has already been processed or is incomplete
post_status = post_status(post_id)
if post_status.nil? || post_status == 0
puts "Starting import for post_id #{post_id} in batch #{current_post_batch / batch_size + 1} with #{thread_count} threads"
# Submit the import job for the current post_id to the thread pool
pool.post do
begin
puts "Processing post ID: #{post_id}"
topic_import_job(post_id) # Import topic and its replies
mark_post_as_complete(post_id) # Mark as complete in SQLite table
rescue => e
puts "Error processing post ID #{post_id}: #{e.message}"
mark_post_as_failed(post_id)
end
end
else
puts "Skipping post_id #{post_id}, already processed."
end
current_post_batch += 1 # Increment, moving to next post in the batch
@ -1010,15 +1067,15 @@ class GossamerForumsImporter < ImportScripts::Base
end
end
# Method to ensure thread-safe updates to highest_processed_post_id
def update_highest_processed_post_id_thread_safe(post_id)
@highest_processed_mutex ||= Mutex.new
@highest_processed_mutex.synchronize do
if post_id > fetch_highest_processed_post_id
update_highest_processed_post_id(post_id)
end
end
end
# # Method to ensure thread-safe updates to highest_processed_post_id
# def update_highest_processed_post_id_thread_safe(post_id)
# @highest_processed_mutex ||= Mutex.new
# @highest_processed_mutex.synchronize do
# if post_id > fetch_highest_processed_post_id
# update_highest_processed_post_id(post_id)
# end
# end
# end
# Method to import an entire topic, including its first post and all subsequent replies
def topic_import_job(post_id)
@ -1169,16 +1226,16 @@ class GossamerForumsImporter < ImportScripts::Base
# Handle any attachments associated with the reply
handle_post_attachments(reply_row['post_id'], post, reply_user_id)
# Update the highest processed post_id in the database (thread-safe)
update_highest_processed_post_id_thread_safe(reply_row['post_id'])
# # Update the highest processed post_id in the database (thread-safe)
# update_highest_processed_post_id_thread_safe(reply_row['post_id'])
rescue ActiveRecord::RecordInvalid => e
puts "Error importing reply with post_id #{reply_row['post_id']}: #{e.message}"
end
end
# After processing the entire topic, update the highest_processed_post_id to the current topic's post_id (thread-safe)
update_highest_processed_post_id_thread_safe(post_id)
# # After processing the entire topic, update the highest_processed_post_id to the current topic's post_id (thread-safe)
# update_highest_processed_post_id_thread_safe(post_id)
rescue ActiveRecord::RecordInvalid => e
puts "Error importing topic with post_id #{row['post_id']}: #{e.message}"
@ -1648,6 +1705,9 @@ class GossamerForumsImporter < ImportScripts::Base
import_users
export_username_mapping_to_csv("/bitnami/discourse/sqlite/gossamer-migration-username-mapping#{timestamp}")
generate_user_id_mapping
# set_user_bio_images
import_categories
#### import_topics_and_posts_with_attachments