firesharkstudios / butterfly-server Goto Github PK

View Code? Open in Web Editor NEW

274.0 15.0 32.0 21.74 MB

The Everything is Real-Time C# Backend for Single Page Applications

License: Mozilla Public License 2.0

C# 44.03% HTML 19.35% JavaScript 10.97% Vue 18.63% Shell 7.02%

realtime push websocket webapp app server webserver database spa butterfly

butterfly-server's People

Contributors

Stargazers

Watchers

butterfly-server's Issues

do you plan to support oracle DBMS?

thanks for your great work.

Timeout on UpdateAndCommitAsync()

I'm trying to run the Database example. I use a SqlServer but when i try to do the UpdateAndCommitAsync() an execption throw up.

// This will echo multiple Update data events to the Console because it impacts multiple records in the resultset
// Yes, that's pretty cool :)
Console.WriteLine("Updating user name to 'Mr. Spongebob'");
await database.UpdateAndCommitAsync("users", new
{
        id = spongebobId,
        name = "Mr. Spongebob"
});
await Task.Delay(500);

This is the stack trace.

at Butterfly.SqlServer.SqlServerDatabase.ExecuteCommandAsync[T](Func`2 query, String executableSql, Dictionary`2 executableParams) in C:\Users\marcoc\Desktop\butterfly-server-dotnet-master\Butterfly.SqlServer\SqlServerDatabase.cs:line 268
 at Butterfly.SqlServer.SqlServerDatabase.DoSelectRowsAsync(String executableSql, Dictionary`2 executableParams, Int32 limit) in C:\Users\marcoc\Desktop\butterfly-server-dotnet-master\Butterfly.SqlServer\SqlServerDatabase.cs:line 73
 at Butterfly.Core.Database.Dynamic.DynamicView.GetImpactedRecordsAsync(KeyValueDataEvent keyValueDataEvent) in C:\Users\marcoc\Desktop\butterfly-server-dotnet-master\Butterfly.Core\Database\Dynamic\DynamicView.cs:line 252
 at Butterfly.Core.Database.Dynamic.DynamicViewSet.StoreImpactedRecordsInDataEventTransaction(TransactionState transactionState, DataEventTransaction dataEventTransaction) in C:\Users\marcoc\Desktop\butterfly-server-dotnet-master\Butterfly.Core\Database\Dynamic\DynamicViewSet.cs:line 115
 at Butterfly.Core.Database.Dynamic.DynamicViewSet.ProcessUncommittedDataEventTransactionAsync(DataEventTransaction dataEventTransaction) in C:\Users\marcoc\Desktop\butterfly-server-dotnet-master\Butterfly.Core\Database\Dynamic\DynamicViewSet.cs:line 100
 at Butterfly.Core.Database.BaseDatabase.PostDataEventTransactionAsync(TransactionState transactionState, DataEventTransaction dataEventTransaction) in C:\Users\marcoc\Desktop\butterfly-server-dotnet-master\Butterfly.Core\Database\BaseDatabase.cs:line 147
 at Butterfly.Core.Database.BaseTransaction.CommitAsync() in C:\Users\marcoc\Desktop\butterfly-server-dotnet-master\Butterfly.Core\Database\BaseTransaction.cs:line 258
 at Butterfly.Core.Database.BaseDatabase.UpdateAndCommitAsync(String updateStatement, Object vars) in C:\Users\marcoc\Desktop\butterfly-server-dotnet-master\Butterfly.Core\Database\BaseDatabase.cs:line 257
 at ConsoleApp1.Program.Run(IDatabase database) in c:\users\marcoc\source\repos\ConsoleApp1\ConsoleApp1\Program.cs:line 151

It seems that "ORDER BY" clause ignored by Butterfly.Core.Database.Memory.SelectRowsAsync()

DB Created as:

_database = new Butterfly.Core.Database.Memory.MemoryDatabase();
...
await _database.CreateFromSqlAsync(
                @"CREATE TABLE event_store(
                  Id BIGINT AUTO_INCREMENT,
                  Timestamp DATETIME,
                  TableId CHAR(36),
                  Players TEXT,
                  Memo TEXT,
                  GuessPosition INT,
                  
                  PRIMARY KEY (Id),
                  INDEX byTableId(TableId),
                  INDEX byTableIdAndTimestamp(TableId, Timestamp)
                );"
            );

Simple Dump() method

private void Dump()
        {
            var selectTask = _database.SelectRowsAsync("select Id, Timestamp, TableId, Players, Memo, GuessPosition from event_store order by Id desc");

            foreach (var record in selectTask.Result)
            {
                Log.Info(JsonUtil.Serialize(record));
            }
        }

Example Output:

2019-05-08 09:03:36,383  INFO [9] - {"Id":0,"Timestamp":"2019-05-08 16:03:14","TableId":"fc3897e4-9f40-4300-b9c3-a05f73ae85e1","Players":"[]","Memo":"[]","GuessPosition":0}
2019-05-08 09:03:36,385  INFO [9] - {"Id":1,"Timestamp":"2019-05-08 16:03:29","TableId":"fc3897e4-9f40-4300-b9c3-a05f73ae85e1","Players":"[{\"ScreenName\":\"someblock\",\"SessionId\":\"session-1\"}]","Memo":"[]","GuessPosition":0}
2

Expected to see record with Id 1 first.

How can I add the Butterfly JavaScript libraries to a jQuery site?

Hello,
I'd like to use Butterfly in a new project, where I have to display a report from data stored in a SQLite database. However, the web site will use jQuery with ASP.NET Core MVC, so I'm not sure how to add the Butterfly JavaScript libraries to the jQuery side.

I was able to find samples here in GitHub and on the Internet where they use Angular and npm to do that, but that is not my case.

Is there a way to accomplish this? Thanks for your help on this.

Regards,
Jorge

Use MySqlConnector for async I/O

The MySqlTransaction code uses ExecuteNonQueryAsync, etc.. It's a long-standing bug in MySql.Data (bug 70111) that async I/O is not implemented correctly; thus all these methods will actually run synchronously. (See also here and here on Stack Overflow.)

To fix this, you could switch to https://github.com/mysql-net/MySqlConnector, an OSS replacement for MySql.Data that supports true asynchronous I/O. If you're interested in this, I'd be happy to open a PR.

firesharkstudios / butterfly-server Goto Github PK

butterfly-server's People

Contributors

Stargazers

Watchers

Forkers

butterfly-server's Issues

do you plan to support oracle DBMS?

Timeout on UpdateAndCommitAsync()

It seems that "ORDER BY" clause ignored by Butterfly.Core.Database.Memory.SelectRowsAsync()

How can I add the Butterfly JavaScript libraries to a jQuery site?

Use MySqlConnector for async I/O

Recommend Projects

React

Vue.js

Typescript

TensorFlow

Django

Laravel

D3

Recommend Topics

javascript

web

server

Machine learning

Visualization

Game

Recommend Org

Facebook

Microsoft

Google

Alibaba

D3

Tencent

Jobs