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Josh Soref 46ee7eb873 Spelling samples Closes https://github.com/dart-lang/sdk/pull/50919 TEST=ci GitOrigin-RevId: 5ac389ee109d6a06f89d405da916945c36e1d24d Change-Id: Ica078a14e87234459c0703c41c8bae5157132b14 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/278532 Reviewed-by: Michael Thomsen <mit@google.com> Reviewed-by: Slava Egorov <vegorov@google.com> Commit-Queue: Slava Egorov <vegorov@google.com>		2023-01-09 17:44:29 +00:00
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README.md	[samples/ffi] Update sqlite sample	2022-06-07 12:11:39 +00:00

README.md

Sample code dart:ffi

This is an illustrative sample for how to use dart:ffi.

Prerequirement

For Windows, Linux, and MacOS, you should make sure, sqlite dev lib installed on your system.

Windows user can download dll from https://www.sqlite.org/download.html

If you do not have any sqlite3.dll or so file, you may found error message:

Unhandled exception:
Invalid argument(s): Failed to load dynamic library (126)
#0      _open (dart:ffi-patch/ffi_dynamic_library_patch.dart:13:55)
#1      new DynamicLibrary.open (dart:ffi-patch/ffi_dynamic_library_patch.dart:22:12)

Building and Running this Sample

Building and running this sample is done through pub. Running dart run example/main should produce the following output.

$ dart run example/main
1 Chocolade chip cookie Chocolade cookie foo
2 Ginger cookie null 42
3 Cinnamon roll null null
1 Chocolade chip cookie Chocolade cookie foo
2 Ginger cookie null 42
expected exception on accessing result data after close: The result has already been closed.
expected this query to fail: no such column: non_existing_column (Code 1: SQL logic error)

Tutorial

A tutorial walking through the code is available in docs/sqlite-tutorial.md. For information on how to use this package within a Flutter app, see docs/android.md. (Note: iOS is not yet supported).