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How do I update/upsert a document in Mongoose?
...t = new Contact({
phone: request.phone,
status: request.status
});
// Convert the Model instance to a simple object using Model's 'toObject' function
// to prevent weirdness like infinite looping...
var upsertData = contact.toObject();
// Delete the _id property, otherwise Mongo will return a ...
Xcode debugging - displaying images
...about external tools.
What i'm doing to test images while debugging is to convert that raw data into an image-file format, like .png, and then saving it somewhere, and then i'm opening the image with any image viewing tool.
I have a piece of code for that purpose, which look basically like that:
...
Overriding id on create in ActiveRecord
...; 8888
I'm not sure what the original motivation was, but I do this when converting ActiveHash models to ActiveRecord. ActiveHash allows you to use the same belongs_to semantics in ActiveRecord, but instead of having a migration and creating a table, and incurring the overhead of the database on ...
Java RegEx meta character (.) and ordinary dot?
... RegEx, how to find out the difference between . (dot) the meta character and the normal dot as we using in any sentence. How to handle this kind of situation for other meta characters too like ( * , + , \d ,...)
...
“unmappable character for encoding” warning in Java
... as EUC-JP and UTF-8.. If -encoding is not specified, the platform default converter is used. (DOC)
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How to check if type of a variable is string?
...
isinstance(s, basestring)
basestring is the abstract superclass of str and unicode. It can be used to test whether an object is an instance of str or unicode.
In Python 3.x, the correct test is
isinstance(s, str)
The bytes class isn't considered a string type in Python 3.
...
Initialize a nested struct
... }
fmt.Println(c)
fmt.Println(c.Proxy.Address)
}
The less proper and ugly way but still works:
c := &Configuration{
Val: "test",
Proxy: struct {
Address string
Port string
}{
Address: "addr",
Port: "80",
},
}
...
How to add an object to an array
...* loop array */
for (var i in aData) {
alert(aData[i].fullname());
}
/* convert array of object into string json */
var jsonString = JSON.stringify(aData);
document.write(jsonString);
Push object into array
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How do you show animated GIFs on a Windows Form (c#)
... is a Windows native control just to display them. There are even tools to convert animated Gifs to AVI (and vice-versa).
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How do I check if a column is empty or null in MySQL?
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the NULLIF checks fieldname for the empty value and would convert to NULL if it was empty. The ISNULL returns 1 (true) if the NULLIF succesfully changed an empty field to NULL or if it was already NULL.... try for your self on a null and empty field in a table with the two funct...