class Blazer::Adapters::MongodbAdapter

Public Instance Methods

preview_statement() click to toggle source
# File lib/blazer/adapters/mongodb_adapter.rb, line 24
def preview_statement
  "db.{table}.find().limit(10)"
end
run_statement(statement, comment) click to toggle source
# File lib/blazer/adapters/mongodb_adapter.rb, line 4
def run_statement(statement, comment)
  columns = []
  rows = []
  error = nil

  begin
    documents = db.command({:$eval => "#{statement.strip}.toArray()", nolock: true}).documents.first["retval"]
    columns = documents.flat_map { |r| r.keys }.uniq
    rows = documents.map { |r| columns.map { |c| r[c] } }
  rescue => e
    error = e.message
  end

  [columns, rows, error]
end
tables() click to toggle source
# File lib/blazer/adapters/mongodb_adapter.rb, line 20
def tables
  db.collection_names
end

Protected Instance Methods

client() click to toggle source
# File lib/blazer/adapters/mongodb_adapter.rb, line 30
def client
  @client ||= Mongo::Client.new(settings["url"], connect_timeout: 1, socket_timeout: 1, server_selection_timeout: 1)
end
db() click to toggle source
# File lib/blazer/adapters/mongodb_adapter.rb, line 34
def db
  @db ||= client.database
end