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Django connection to PostgreSQL: “Peer authentication failed”
This is the error I am receiving when I try to get to my Django admin site. I had been using MySQL database no problem. I am new to PostgreSQL, but decided to switch because the host I ultimately plan to use for this project does not have MySQL.
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关于App Inventor 2颜色积木，社区里追问最多的8个问题 - App应用开发 - 清...
每次在社区看到有人晒出配色惊艳的App，底下评论总会排着队问颜色积木怎么用。颜色模块看起来简单——三个积木块而已，但实际用起来，光"为什么我设的颜色跟想的不一样"这一个问题就够聊上半天。我汇总了社区和...
Convert dmesg timestamp to custom date format
I am trying to understand the dmesg timestamp and find it hard to convert that to change it to java date/custom date format.
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How do I insert datetime value into a SQLite database?
I am trying to insert a datetime value into a SQLite database. It seems to be sucsessful but when I try to retrieve the value there is an error:
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Getting a 'source: not found' error when using source in a bash script
I'm trying to write (what I thought would be) a simple bash script that will:
3 Answers
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Simple calculations for working with lat/lon and km distance?
Is there a simple calculation I can do which will convert km into a value which I can add to a lat or lon float to calculate a bounding box for searches? It doesn't need to be completely accurate.
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How can I dynamically create a selector at runtime with Objective-C?
I know how to create a SEL at compile time using @selector(MyMethodName:) but what I want to do is create a selector dynamically from an NSString . Is this even possible?
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What's the strangest corner case you've seen in C# or .NET? [closed]
I collect a few corner cases and brain teasers and would always like to hear more. The page only really covers C# language bits and bobs, but I also find core .NET things interesting too. For example, here's one which isn't on the page, but which I find incredible:
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Eclipse, regular expression search and replace
In eclipse, is it possible to use the matched search string as part of the replace string when performing a regular expression search and replace?
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getViewTypeCount and getItemViewType methods of ArrayAdapter
Can somebody in plain words explain me the usage of getViewTypeCount() and getItemViewType() methods of ArrayAdapter ?
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