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Difference between Destroy and Delete
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Basically destroy runs any callbacks on the model while delete doesn't.
From the Rails API:
ActiveRecord::Persistence.delete
Deletes the record in the database and freezes this instance to reflect that no changes should be made (since they can't be persisted). R...
How do I find the most recent git commit that modified a file?
I want to find the most recent commit that modified a source file.
6 Answers
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ActiveRecord: size vs count
In Rails, you can find the number of records using both Model.size and Model.count . If you're dealing with more complex queries is there any advantage to using one method over the other? How are they different?
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How to find the mime type of a file in python?
Let's say you want to save a bunch of files somewhere, for instance in BLOBs. Let's say you want to dish these files out via a web page and have the client automatically open the correct application/viewer.
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How can I decompress a gzip stream with zlib?
Gzip format files (created with the gzip program, for example) use the "deflate" compression algorithm, which is the same compression algorithm as what zlib uses. However, when using zlib to inflate a gzip compressed file, the library returns a Z_DATA_ERROR .
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How can I push a local Git branch to a remote with a different name easily?
... wondering if there's an easy way to push and pull a local branch with a remote branch with a different name without always specifying both names.
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Preventing Laravel adding multiple records to a pivot table
I have a many to many relationship set up and working, to add an item to the cart I use:
5 Answers
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How to return smart pointers (shared_ptr), by reference or by value?
Let's say I have a class with a method that returns a shared_ptr .
2 Answers
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Why does struct alignment depend on whether a field type is primitive or user-defined?
In Noda Time v2, we're moving to nanosecond resolution. That means we can no longer use an 8-byte integer to represent the whole range of time we're interested in. That has prompted me to investigate the memory usage of the (many) structs of Noda Time, which has in turn led me to uncover a slight ...
What's the difference between hard and soft floating point numbers?
When I compile C code with my cross toolchain, the linker prints pages of warnings saying that my executable uses hard floats but my libc uses soft floats. What's the difference?
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