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Rails 4 LIKE query - ActiveRecord adds quotes
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When using '?' in this way in rails it is converted to a parameterized query. The data within the parameter isn't sanitized (the %) but it is impossible to change context out of the query and turn it into processed SQL statements.
– David Hoelz...
what's the correct way to send a file from REST web service to client?
...nt. So far I've gotten the hang of how to send simple data types (strings, integers, etc) but sending a file is a different matter since there are so many file formats that I don't know where I should even begin. My REST service is made on Java and I'm using Jersey, I'm sending all the data using th...
Find number of months between two Dates in Ruby on Rails
... get from your calculation is way off. All we are doing is taking days and converting them to months, it is not super accurate because it assumes 30.4167 days per month, but it very close and then it rounds anyways.
– Andreykul
Aug 2 '18 at 13:21
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Git, fatal: The remote end hung up unexpectedly
...D changes into a state where merging them became obnoxious (everything was converted to an ADD). I wish I had researched this one more before running it.
– MatrixManAtYrService
Jul 1 '16 at 3:40
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How to call base.base.method()?
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var ptr = typeof(Base).GetMethod("Say").MethodHandle.GetFunctionPointer();
var baseSay = (Action)Activator.CreateInstance(typeof(Action), this, ptr);
baseSay();
}
}
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Ways to iterate over a list in Java
...the iteration methods makes a copy of anything in the list. Changes to the internal state of element will always be seen in the internal state of the corresponding element on the list.
Essentially, there are only two ways to iterate over a list: by using an index or by using an iterator. The enhanc...
Creating java date object from year,month,day
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Months are zero-based in Calendar. So 12 is interpreted as december + 1 month. Use
c.set(year, month - 1, day, 0, 0);
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Output first 100 characters in a string
...reat way to handle this. Here are some examples.
The formatting code '%s' converts '12345' to a string, but it's already a string.
>>> '%s' % '12345'
'12345'
'%.3s' specifies to use only the first three characters.
>>> '%.3s' % '12345'
'123'
'%.7s' says to use the first se...
Can't access RabbitMQ web management interface after fresh install
...ced that I had created the setup script in Windows (CR+LF line ending) and converted the file to Linux (LF only), then reran the setup script on my Linux server.
... and was still not able to log in, because it took another 15 minutes until I realized that calling add_user over and over again would...
What is the difference between Strategy pattern and Dependency Injection?
...mostly used in the context of automated testing only.
Strategy focuses on intent and encourages you to create an interface with different implementations that obey the same behavioral contract. DI is more about just having an implementation of some behavior and providing it.
With DI you can decomp...