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How do you effectively model inheritance in a database?
...etimes needed, when you want to load a list of all records (without doing select on each and every child table). One way to handle this, is to have one column representing the type of the child class (similar to the rowType field in the TPH), so mixing the TPT and TPH somehow.
Say we want to des...
CSS: bolding some text without changing its container's size
...e widths to be defined by the width of the menu item. I bold the currently-selected item.
11 Answers
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How do I apply a perspective transform to a UIView?
...zip it
Go into the folder you unzipped, open its iCarousel subfolder, then select iCarousel.h and iCarousel.m and drag them into your project navigation – that's the left pane in Xcode. Just below Info.plist is fine.
Check "Copy items if needed" then click Finish.
Xcode will prompt you with the me...
How to 'bulk update' with Django?
...each essentially having the form of the first example above) + the initial SELECT-query.
If every row requires a unique value there is no way to avoid one query per update. Perhaps look into other architectures like CQRS/Event sourcing if you need performance in this latter case.
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Why can't I inherit static classes?
...ods (as they are defined on type level). How should the compiler decide to select the method to invoke?
(littleguru)
And as a valuable idea, littleguru has a partial "workaround" for this issue: the Singleton pattern.
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How do I Sort a Multidimensional Array in PHP [duplicate]
...'s associative if you want: this code takes care of sorting items, but you select the actual sort function (usort or uasort).
Finally, it does not use array_multisort: while array_multisort is convenient, it depends on creating a projection of all your input data before sorting. This consumes time a...
Bootstrap combining rows (rowspan)
... a row doesn't have to use row-fluid to accomplish this as suggested by my selected answer. I really appreciate it though!
– Seong Lee
May 3 '13 at 5:36
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SQLAlchemy: Creating vs. Reusing a Session
...nging around in that Session, when you access them you'll get a single-row SELECT for each one of them as they each individually refresh their state in terms of the new transaction.
– zzzeek
Sep 27 '15 at 18:16
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Using an ORM or plain SQL? [closed]
...ent store, when a ORM tool frees you from writing boilerplate SQL queries (selects by PK or by predicates, inserts, updates and deletes) and lets you concentrate on the problem domain.
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impro...
How can I use if/else in a dictionary comprehension?
...ry for further processing like validation, or editing which we must return selected data from file back to entry widgets, etc.
The first round using traditional coding (8 lines):
entries = {'name': 'Material Name', 'maxt': 'Max Working Temperature', 'ther': {100: 1.1, 200: 1.2}}
a_dic, b_dic = {}, ...