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How to change the name of a Django app?
...templates folders inside your app, you'll also need to rename those. For example, rename old_app/static/old_app to new_app/static/new_app.
For renaming django models, you'll need to change django_content_type.name entry in DB. For postgreSQL use UPDATE django_content_type SET name='<newModelName&...
MySQL pagination without double-querying?
...(with the limit) and just filter the info through your back end script. In PHP for instance, you could do something like:
if($queryResult > 0) {
$counter = 0;
foreach($queryResult AS $result) {
if($counter >= $startAt AND $counter < $numOfRows) {
//do what you want...
Validate that end date is greater than start date with jQuery
...ate(value) > new Date($(params).val());
}
return isNaN(value) && isNaN($(params).val())
|| (Number(value) > Number($(params).val()));
},'Must be greater than {0}.');
To use it:
$("#EndDate").rules('add', { greaterThan: "#StartDate" });
or
$("form").validate({
...
Syntax Error: Not a Chance
...ng blocks by braces instead of indentation will never be implemented.
Normally, imports from the special __future__ module enable features that are backwards-incompatible, such as the print() function, or true division.
So the line from __future__ import braces is taken to mean you want to enable ...
Removing all empty elements from a hash / YAML?
...o |new_hash, (k,v)|
if !v.nil?
new_hash[k] = opts[:recurse] && v.class == Hash ? v.compact(opts) : v
end
new_hash
end
end
end
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...
How do pointer to pointers work in C?
...nd thus contains the value 63. c must itself be stored somewhere: in the example above at location 58. Of course we can not only point to characters, but also to other pointers. E.g.:
const char **cp = &c;
Now cp points to c, that is, it contains the address of c (which is 58). We can go even...
Checking if a field contains a string
...
https://docs.mongodb.com/manual/reference/sql-comparison/
http://php.net/manual/en/mongo.sqltomongo.php
MySQL
SELECT * FROM users WHERE username LIKE "%Son%"
MongoDB
db.users.find({username:/Son/})
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...
Difference between single quotes and double quotes in Javascript [duplicate]
I know that in PHP, the only difference between double quotes and single quotes is the interpretation of variable inside a string and the treatment of escape characters.
...
Is there a difference between YES/NO,TRUE/FALSE and true/false in objective-c?
...he problems begin when you use non booleans that seem like booleans, for example c standard library application entry function, main returns 0 on success, many end up thinking of this 0 as a boolean, when in fact it's an application defined enumeration or user defined value, which callees often expe...
Get content uri from file path in android
...ATA + "=? ",
new String[] { filePath }, null);
if (cursor != null && cursor.moveToFirst()) {
int id = cursor.getInt(cursor.getColumnIndex(MediaStore.MediaColumns._ID));
cursor.close();
return Uri.withAppendedPath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "" + id);
}...