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How to get Sinatra to auto-reload the file after each change?
...a app reload on changes?"
First off, in-process code reloading in Ruby is hard and having a
solution that works for every scenario is technically impossible.
Which is why we recommend you to do out-of-process reloading.
First you need to install rerun if you haven’t already:
$ ge...
psql - save results of command to a file
I'm using psql's \dt to list all tables in a database and I need to save the results.
10 Answers
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RuntimeException: Unable to instantiate application
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This is a verbose error message raised by underlying framework when dalvik re-install .apk file and trying to reuse or recycle the previous opened activity/view from the same package (if you haven't closed the previous installe...
How do I test a file upload in rails?
I have a controller which is responsible for accepting JSON files and then processing the JSON files to do some user maintenance for our application. In user testing the file upload and processing works, but of course I would like to automate the process of testing the user maintenance in our testin...
How do I increase the number of displayed lines of a Java stack trace dump?
Is there a way to make Throwable.printStackTrace(PrintStream s) print the full stack trace, so that I can see beyond the final line of "... 40 more" ?
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How to ignore whitespace in a regular expression subject string?
Is there a simple way to ignore the white space in a target string when searching for matches using a regular expression pattern? For example, if my search is for "cats", I would want "c ats" or "ca ts" to match. I can't strip out the whitespace beforehand because I need to find the begin and en...
How to access object attribute given string corresponding to name of that attribute
...setattr
getattr(object, attrname)
setattr(object, attrname, value)
In this case
x = getattr(t, 'attr1')
setattr(t, 'attr1', 21)
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What are the differences between PMD and FindBugs?
...ferences/similarities between PMD and FindBugs. I believe a key difference is that PMD works on source code, while FindBugs works on compiled bytecode files. But in terms of capabilities, should it be an either/or choice or do they complement each other?
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How to get primary key column in Oracle?
...ner
ORDER BY cols.table_name, cols.position;
Make sure that 'TABLE_NAME' is in upper case since Oracle stores table names in upper case.
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Get url parameters from a string in .NET
I've got a string in .NET which is actually a url. I want an easy way to get the value from a particular parameter.
13 A...