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Django Admin - Disable the 'Add' action for a specific model

I have a django site with lots of models and forms. I have many custom forms and formsets and inlineformsets and custom validation and custom querysets. Hence the add model action depends on forms that need other things, and the 'add model' in the django admin throughs a 500 from a custom queryset. ...
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How to show and update echo on same line

I have the following in Bash (In Linux) 6 Answers 6 ...
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Convert HTML to PDF in .NET

I want to generate a PDF by passing HTML contents to a function. I have made use of iTextSharp for this but it does not perform well when it encounters tables and the layout just gets messy. ...
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HTTP vs HTTPS performance

...ny major differences in performance between http and https? I seem to recall reading that HTTPS can be a fifth as fast as HTTP. Is this valid with the current generation webservers/browsers? If so, are there any whitepapers to support it? ...
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Convert a RGB Color Value to a Hexadecimal String

In my Java application, I was able to get the Color of a JButton in terms of red, green and blue; I have stored these values in three int s. ...
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How to convert std::string to lower case?

I want to convert a std::string to lowercase. I am aware of the function tolower() , however in the past I have had issues with this function and it is hardly ideal anyway as use with a std::string would require iterating over each character. ...
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Why do you program in assembly? [closed]

I have a question for all the hardcore low level hackers out there. I ran across this sentence in a blog. I don't really think the source matters (it's Haack if you really care) because it seems to be a common statement. ...
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How to specify a multi-line shell variable?

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Windows batch: formatted date into variable

How do I save the current date in YYYY-MM-DD format into some variable in a Windows .bat file? 17 Answers ...
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Found conflicts between different versions of the same dependent assembly that could not be resolved

When I clean and then build my solution that has several projects, the output window reports that the build succeeded. However, when I view the Error List Window , it shows me this warning: ...