Sha256: 1b8479b822d94578f47bdb769d48cd0310e53551cc2114af9451ca53848f6ec2
Contents?: true
Size: 1.65 KB
Versions: 4
Compression:
Stored size: 1.65 KB
Contents
# frozen_string_literal: true
module PgEventstore
module Web
module Paginator
class StreamNamesCollection < BaseCollection
PER_PAGE = 10
# @return [Array<Hash>]
def collection
@_collection ||=
begin
sql_builder =
SQLBuilder.new.select('stream_name').from('partitions').
where('event_type is null and context = ?', options[:context]).
where('stream_name like ?', "#{options[:query]}%")
sql_builder.where("stream_name #{direction_operator} ?", starting_id) if starting_id
sql_builder.limit(per_page).order("stream_name #{order}")
connection.with do |conn|
conn.exec_params(*sql_builder.to_exec_params)
end.to_a
end
end
# @return [String, nil]
def next_page_starting_id
return unless collection.size == per_page
starting_id = collection.first['stream_name']
sql_builder =
SQLBuilder.new.select('stream_name').from('partitions').
where("stream_name #{direction_operator} ?", starting_id).
where('stream_name like ?', "#{options[:query]}%").
where('event_type is null and context = ?', options[:context]).
limit(1).offset(per_page).order("stream_name #{order}")
connection.with do |conn|
conn.exec_params(*sql_builder.to_exec_params)
end.to_a.dig(0, 'stream_name')
end
private
# @return [String]
def direction_operator
order == :asc ? '>=' : '<='
end
end
end
end
end
Version data entries
4 entries across 4 versions & 1 rubygems