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Brian J. Cardiff 8586182fd8
Update crystal-db ~> 0.10.0 and Crystal 0.35.0 for logging support (#58)
* Update crystal-db for logging support

* Update sample

* Update to crystal-db ~> 0.10.0
2020-09-30 11:34:25 -03:00
samples Update crystal-db ~> 0.10.0 and Crystal 0.35.0 for logging support (#58) 2020-09-30 11:34:25 -03:00
spec Code cleanup due to Crystal >= 0.28.0 2019-06-06 12:36:16 -03:00
src Update crystal-db ~> 0.10.0 and Crystal 0.35.0 for logging support (#58) 2020-09-30 11:34:25 -03:00
.gitignore update .gitignore 2016-12-26 10:46:08 -03:00
.travis.yml Update travis 2017-05-29 15:32:31 -03:00
CHANGELOG.md Release 0.16.0 (#56) 2020-04-06 21:12:05 -03:00
LICENSE add license 2016-06-24 00:02:44 -03:00
README.md Update README.md for dynamic args (#53) 2020-01-14 10:29:58 -03:00
shard.yml Update crystal-db ~> 0.10.0 and Crystal 0.35.0 for logging support (#58) 2020-09-30 11:34:25 -03:00

crystal-sqlite3 Build Status

SQLite3 bindings for Crystal.

Check crystal-db for general db driver documentation. crystal-sqlite3 driver is registered under sqlite3:// uri.

Installation

Add this to your application's shard.yml:

dependencies:
  sqlite3:
    github: crystal-lang/crystal-sqlite3

Usage

require "sqlite3"

DB.open "sqlite3://./data.db" do |db|
  db.exec "create table contacts (name text, age integer)"
  db.exec "insert into contacts values (?, ?)", "John Doe", 30

  args = [] of DB::Any
  args << "Sarah"
  args << 33
  db.exec "insert into contacts values (?, ?)", args: args

  puts "max age:"
  puts db.scalar "select max(age) from contacts" # => 33

  puts "contacts:"
  db.query "select name, age from contacts order by age desc" do |rs|
    puts "#{rs.column_name(0)} (#{rs.column_name(1)})"
    # => name (age)
    rs.each do
      puts "#{rs.read(String)} (#{rs.read(Int32)})"
      # => Sarah (33)
      # => John Doe (30)
    end
  end
end

DB::Any

  • Time is implemented as TEXT column using SQLite3::DATE_FORMAT format.
  • Bool is implemented as INT column mapping 0/1 values.