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How to display unique records from a has_many through relationship?
...ugh => :orders, :select => "DISTINCT products.*). In the first case, ALL records are fetched and rails removes the duplicates for you. In the later case, only non-duplicate records are fetched from the db so it might offer better performance if you have a large result set.
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How do sessions work in Express.js with Node.js?
Using Express.js , sessions are dead simple. I'm curious how they actually work though.
4 Answers
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How can I override inline styles with external CSS?
...e !important keyword to any CSS rule lets the rule forcefully precede over all the other CSS rules for that element.
It even overrides the inline styles from the markup.
The only way to override is by using another !important rule, declared either with higher CSS specificity in the CSS, or equa...
Remove all unused resources from an android project
I want to remove all unused layouts, strings, drawables, colors, etc from my Android res directory. Are there any tools that will give me a list of files and I can remove from my repository and elements within specifics files (e.g. unused string entries) that are no longer used?
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enum.values() - is an order of returned enums deterministic
...och is right about not relying on the ordinal and if the asker's example really involves enums like EN_TWO then he is relying on the ordinal and shouldn't do this. But to rely on the order is perfectly fine. In fact, as order is guaranteed, to create a field specifically for order would be writing r...
Prompt for user input in PowerShell
... Thanks, @Rynant. Accepted answer for being the only one who actually answered my main question! ;) All the other information is really helpful too, especially as I'm still groping my way in PS.
– AJ.
Nov 23 '11 at 12:38
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How can I open a cmd window in a specific location?
... can I open a cmd window in a specific location without having to navigate all the way to the directory I want?
40 Answers
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Operator overloading in Java
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You are saying we cant create wrapper in java? Such as SmallInteger like Integer?
– huseyin tugrul buyukisik
Sep 12 '12 at 10:58
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How to render an ASP.NET MVC view as a string?
...a string with an XmlWriter, as per the link I left in my last comment. I really hope that helps.
– Ben Lesh
Feb 16 '12 at 14:01
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Why does git revert complain about a missing -m option?
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By default git revert refuses to revert a merge commit as what that actually means is ambiguous. I presume that your HEAD is in fact a merge commit.
If you want to revert the merge commit, you have to specify which parent of the merge you want to consider to be the main trunk, i.e. what you want...