Class Sequel::SQLite::Dataset
In: lib/sequel/adapters/sqlite.rb
Parent: Sequel::Dataset

Dataset class for SQLite datasets that use the ruby-sqlite3 driver.

Methods

call   fetch_rows   prepare  

Included Modules

::Sequel::SQLite::DatasetMethods

Classes and Modules

Module Sequel::SQLite::Dataset::ArgumentMapper
Module Sequel::SQLite::Dataset::BindArgumentMethods
Module Sequel::SQLite::Dataset::PreparedStatementMethods

Constants

PREPARED_ARG_PLACEHOLDER = ':'.freeze

Public Instance methods

call(type, bind_vars={}, *values, &block)

Execute the given type of statement with the hash of values.

[Source]

     # File lib/sequel/adapters/sqlite.rb, line 264
264:       def call(type, bind_vars={}, *values, &block)
265:         ps = to_prepared_statement(type, values)
266:         ps.extend(BindArgumentMethods)
267:         ps.call(bind_vars, &block)
268:       end
fetch_rows(sql) {|row| ...}

Yield a hash for each row in the dataset.

[Source]

     # File lib/sequel/adapters/sqlite.rb, line 271
271:       def fetch_rows(sql)
272:         execute(sql) do |result|
273:           i = -1
274:           cols = result.columns.map{|c| [output_identifier(c), i+=1]}
275:           @columns = cols.map{|c| c.first}
276:           result.each do |values|
277:             row = {}
278:             cols.each{|n,i| row[n] = values[i]}
279:             yield row
280:           end
281:         end
282:       end
prepare(type, name=nil, *values)

Prepare the given type of query with the given name and store it in the database. Note that a new native prepared statement is created on each call to this prepared statement.

[Source]

     # File lib/sequel/adapters/sqlite.rb, line 287
287:       def prepare(type, name=nil, *values)
288:         ps = to_prepared_statement(type, values)
289:         ps.extend(PreparedStatementMethods)
290:         if name
291:           ps.prepared_statement_name = name
292:           db.prepared_statements[name] = ps
293:         end
294:         ps.prepared_sql
295:         ps
296:       end

[Validate]