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Deleting rows with MySQL LEFT JOIN
I have two tables, one for job deadlines, one for describe a job. Each job can take a status and some statuses means the jobs' deadlines must be deleted from the other table.
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A Better Django Admin ManyToMany Field Widget
... find the the Django Admin's default models.ManyToManyField widget to be cumbersome to use. It's the HTML select element and if you have a lot of Objects of the "other" model then it's quite impractical to actually find the "other" Objects you want to associate with "this" Object. And if you hav...
assign multiple variables to the same value in Javascript
I have initialized several variables in the global scope in a JavaScript file:
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How do I show a Save As dialog in WPF?
I have a requirement in WPF/C# to click on a button, gather some data and then put it in a text file that the user can download to their machine. I can get the first half of this, but how do you prompt a user with a "Save As" dialog box? The file itself will be a simple text file.
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How do I select an element in jQuery by using a variable for the ID?
For example, the following selects a division with id="2":
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Large Numbers in Java
How would I go about doing calculations with extremely large numbers in Java?
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Formatting “yesterday's” date in python
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Zero-pad digits in string
I need to cast single figures (1 to 9) to (01 to 09). I can think of a way but its big and ugly and cumbersome. I'm sure there must be some concise way. Any Suggestions
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JQuery to load Javascript file dynamically
I have a very large javascript file I would like to load only if the user clicks on a certain button. I am using jQuery as my framework. Is there a built-in method or plugin that will help me do this?
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INSERT … ON DUPLICATE KEY (do nothing)
I have a table with a unique key for two columns:
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