database/sql Tx - detecting Commit or Rollback
Using the database/sql and driver packages and Tx, it is not possible it appears to detect whether a transaction has been committed or rolled-back without attempting another and receiving an error as a result, and then examining the error to determine the type of error. I would like to be able to determine from the Tx object whether committed or not. Sure, I can define and set another variable in
How to share mysql connection between http goroutines?
I'm a Go noob and can't find any complete examples of opening a mysql connection in Go and then sharing it among http handlers. Here is my code so far, how would I use the db connection that I opened in main() in my HomeHandler? package main import ( "database/sql" "fmt" _ "github.com/go-sql-driver/mysql" "github.com/gorilla/mux" "log" "net/http" ) func main() { fmt.Println("starting up") db, err
How do I parse a URL into hostname and path in javascript?
I would like to take a string var a = "http://example.com/aa/bb/" and process it into an object such that a.hostname == "example.com" and a.pathname == "/aa/bb"
How does Facebook disable the browser's integrated Developer Tools?
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403 Forbidden vs 401 Unauthorized HTTP responses
For a web page that exists, but for which a user does not have sufficient privileges (they are not logged in or do not belong to the proper user group), what is the proper HTTP response to serve? 401 Unauthorized? 403 Forbidden? Something else? What I've read on each so far isn't very clear on the difference between the two. What use cases are appropriate for each response?
What does Docker add to lxc-tools (the userspace LXC tools)?
From the Docker FAQ: Docker is not a replacement for lxc. "lxc" refers to capabilities of the linux kernel (specifically namespaces and control groups) which allow sandboxing processes from one another, and controlling their resource allocations. On top of this low-level foundation of kernel features, Docker offers a high-level tool with several powerful functionalities: Portable deployment across
Why does Google prepend while(1); to their JSON responses?
Why does Google prepend while(1); to their (private) JSON responses? For example, here's a response while turning a calendar on and off in Google Calendar: while (1); [ ['u', [ ['smsSentFlag', 'false'], ['hideInvitations', 'false'], ['remindOnRespondedEventsOnly', 'true'], ['hideInvitations_remindOnRespondedEventsOnly', 'false_true'], ['Calendar ID stripped for privacy', 'false'], ['smsVerifiedFla
Is Safari on iOS 6 caching $.ajax results?
Since the upgrade to iOS 6, we are seeing Safari's web view take the liberty of caching $.ajax calls. This is in the context of a PhoneGap application so it is using the Safari WebView. Our $.ajax calls are POST methods and we have cache set to false {cache:false}, but still this is happening. We tried manually adding a TimeStamp to the headers but it did not help. We did more research and found t
Why is this program valid? I was trying to create a syntax error
I'm running ActiveState's 32 bit ActivePerl 5.14.2 on Windows 7. I wanted to mess around with a Git pre-commit hook to detect programs being checked in with syntax errors. (Somehow I just managed to do such a bad commit.) So as a test program I randomly jotted this: use strict; use warnings; Syntax error! exit 0; However, it compiles and executes with no warnings, and errorlevel is zero on exit. H
brew install mysql on macOS
I'm trying to setup up MySQL on mac os 10.6 using Homebrew by brew install mysql 5.1.52. Everything goes well and I am also successful with the mysql_install_db. However when I try to connect to the server using: /usr/local/Cellar/mysql/5.1.52/bin/mysqladmin -u root password 'mypass' I get: /usr/local/Cellar/mysql/5.1.52/bin/mysqladmin: connect to server at 'localhost' failed error: 'Access denied
What exactly is RESTful programming?
REST is the underlying architectural principle of the web. The amazing thing about the web is the fact that clients (browsers) and servers can interact in complex ways without the client knowing anything beforehand about the server and the resources it hosts. The key constraint is that the server and client must both agree on the media used, which in the case of the web is HTML. An API that adhere
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