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Dynamically adding a form to a Django formset with Ajax

...ice'); }); </script> In a javascript file: function cloneMore(selector, type) { var newElement = $(selector).clone(true); var total = $('#id_' + type + '-TOTAL_FORMS').val(); newElement.find(':input').each(function() { var name = $(this).attr('name').replace('-' + (t...
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How do I add more members to my ENUM-type column in MySQL?

... do not appear in your ENUM. What is the output of the following command? SELECT DISTINCT country FROM carmake; ANOTHER EDIT: What is the output of the following command? SHOW VARIABLES LIKE 'sql_mode'; Is it STRICT_TRANS_TABLES or STRICT_ALL_TABLES? That could lead to an error, rather than the ...
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How do I update the notification text for a foreground service in Android?

...(String text){ // The PendingIntent to launch our activity if the user selects // this notification CharSequence title = getText(R.string.title_activity); PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, MyActivity.class), 0); return ...
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Intelligent point label placement in R

...0,0,0, 0.75), col.label="white") It works by automatically selecting an alternative location from a fine grid of points. The closest points on the grid are visited first and selected if they don't overlap with any plotted points or labels. Take a look at the source code, if you're in...
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ASP.NET MVC: Custom Validation by DataAnnotation

...ntext validationContext) { var properties = this.PropertyNames.Select(validationContext.ObjectType.GetProperty); var values = properties.Select(p => p.GetValue(validationContext.ObjectInstance, null)).OfType<string>(); var totalLength = values.Sum(x => x.Lengt...
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Is there a use-case for singletons with database access in PHP?

...all one needs to maintain multiple database connections, multiple database selections, multiple database queries, multiple result sets in a given singleton is just keeping them in variables/arrays in the singleton as long as they are needed. This can be as simple as keeping them in arrays, though yo...
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Focusable EditText inside ListView

... . All I want to do is be able to use the jogball/arrows, to navigate the selector to individual items like normal, but when I get to a particular row -- even if I have to explicitly identify the row -- that has a focusable child, I want that child to take focus instead of indicating the position w...
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ArrayList initialization equivalent to array initialization [duplicate]

... The selected answer is: ArrayList<Integer>(Arrays.asList(1,2,3,5,8,13,21)); However, its important to understand the selected answer internally copies the elements several times before creating the final array, and that th...
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Does MongoDB's $in clause guarantee order

...ocuments are retrieved. That of course will be the natural order or by the selected index order as shown. If you need to preserve this order, then you basically have two options. So let's say that you were matching on the values of _id in your documents with an array that is going to be passed in ...
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Working with time DURATION, not time of day

...rmula, =A1, then highlight the cell, go into the formatting dropdown menu, select Custom, and type in dddd. Repeat all this in the row below. Finally, say you want to display that duration in cell D2. Enter the formula, =(a2+b2)-(a1+b1). If you want this displayed as "22h 30m", select the cell, ...