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Rails find_or_create_by more than one attribute?
There is a handy dynamic attribute in active-record called find_or_create_by:
5 Answers
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What is better: @SuppressLint or @TargetApi?
I have issues in my app regarding StrictMode and added the code snippet that basically disables the StrictModeHelper . However, Lint complains about setThreadPolicy() now and proposes to either add
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Inline code in org-mode
Markdown allows for embedded code . How can this be done in org-mode ?
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SQLite - How do you join tables from different databases?
I have an application that uses a SQLite database and everything works the way it should. I'm now in the process of adding new functionalities that require a second SQLite database, but I'm having a hard time figuring out how to join tables from the different databases.
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Understanding :source option of has_one/has_many through of Rails
Please help me in understanding the :source option of has_one/has_many :through association. The Rails API explanation makes very little sense to me.
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Ignore mouse interaction on overlay image
I have a menu bar with hover effects, and now I want to place a transparent image with a circle and a "handdrawn" text over one of the menu items. If I use absolute positioning to place the overlay image above the menu item, the user will not be able to click the button and the hover effect will not...
Revert a range of commits in git
How can I revert a range of commits in git? From looking at the gitrevisions documentation, I cannot see how to specify the range I need. For example:
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How to find a min/max with Ruby
I want to use min(5,10) , or Math.max(4,7) . Are there functions to this effect in Ruby?
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What is the difference between Caching and Memoization?
I would like to know what the actual difference between caching and memoization is.
As I see it, both involve avoiding repeated function calls to get data by storing it .
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What are the differences between the BLOB and TEXT datatypes in MySQL?
What is blob and what is text ? What are the differences?
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