Connect to the database. Since SQLite is a file based database, the only options available are :database (to specify the database name), and :timeout, to specify how long to wait for the database to be available if it is locked, given in milliseconds (default is 5000).
# File lib/sequel/adapters/sqlite.rb, line 33 def connect(server) opts = server_opts(server) opts[:database] = ':memory:' if blank_object?(opts[:database]) db = ::SQLite3::Database.new(opts[:database]) db.busy_timeout(opts.fetch(:timeout, 5000)) db.type_translation = true connection_pragmas.each{|s| log_yield(s){db.execute_batch(s)}} # Handle datetimes with Sequel.datetime_class prok = proc do |t,v| v = Time.at(v.to_i).iso8601 if UNIX_EPOCH_TIME_FORMAT.match(v) Sequel.database_to_application_timestamp(v) end db.translator.add_translator("timestamp", &prok) db.translator.add_translator("datetime", &prok) # Handle numeric values with BigDecimal prok = proc{|t,v| BigDecimal.new(v) rescue v} db.translator.add_translator("numeric", &prok) db.translator.add_translator("decimal", &prok) db.translator.add_translator("money", &prok) # Handle floating point values with Float prok = proc{|t,v| Float(v) rescue v} db.translator.add_translator("float", &prok) db.translator.add_translator("real", &prok) db.translator.add_translator("double precision", &prok) # Handle blob values with Sequel::SQL::Blob db.translator.add_translator("blob"){|t,v| ::Sequel::SQL::Blob.new(v)} db end
Return instance of Sequel::SQLite::Dataset with the given options.
# File lib/sequel/adapters/sqlite.rb, line 69 def dataset(opts = nil) SQLite::Dataset.new(self, opts) end
Run the given SQL with the given arguments and yield each row.
# File lib/sequel/adapters/sqlite.rb, line 84 def execute(sql, opts={}) _execute(opts) do |conn| begin yield(result = log_yield(sql, opts[:arguments]){conn.query(sql, opts.fetch(:arguments, []))}) ensure result.close if result end end end
Run the given SQL with the given arguments and return the number of changed rows.
# File lib/sequel/adapters/sqlite.rb, line 74 def execute_dui(sql, opts={}) _execute(opts){|conn| log_yield(sql, opts[:arguments]){conn.execute_batch(sql, opts.fetch(:arguments, []))}; conn.changes} end
Run the given SQL with the given arguments and return the last inserted row id.
# File lib/sequel/adapters/sqlite.rb, line 79 def execute_insert(sql, opts={}) _execute(opts){|conn| log_yield(sql, opts[:arguments]){conn.execute(sql, opts.fetch(:arguments, []))}; conn.last_insert_row_id} end
Run the given SQL with the given arguments and return the first value of the first row.
# File lib/sequel/adapters/sqlite.rb, line 95 def single_value(sql, opts={}) _execute(opts){|conn| log_yield(sql, opts[:arguments]){conn.get_first_value(sql, opts.fetch(:arguments, []))}} end
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