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What is the difference between the Data Mapper, Table Data Gateway (Gateway), Data Access Object (DA

... skills, and I'm curious what are the differences between these patterns? All of them seem like they are the same thing - encapsulate the database logic for a specific entity so the calling code has no knowledge of the underlying persistence layer. From my brief research all of them typically impl...
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Where is the warnings screen option in Android Studio?

...dow that pops up select how much of your project you want to inspect (I usually do Whole Project, but you might want to select a specific module), then click okay. Android Studio will work for a bit, then the inspection window will pop up from the bottom with a list of results, subdivided by inspe...
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Android, How to limit width of TextView (and add three dots at the end of text)?

...t the three dots). android:maxLines="1" <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:maxLines="1" android:text="one two three four five six seven eight nine ten" /> This just forces the text to one line. Any extra text is hidd...
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Can we set a Git default to fetch all tags during a remote pull?

...that are downloaded from the remote repository are fetched and stored locally. If that default statement is not a restriction, then you can also try git pull --force share | improve this answ...
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Select element based on multiple classes

...ces between them): .class1.class2 { /* style here */ } This selects all elements with class1 that also have class2. In your case: li.left.ui-class-selector { } Official documentation : CSS2 class selectors. As akamike points out a problem with this method in Internet Explorer 6 you mi...
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Relationship between SciPy and NumPy

SciPy appears to provide most (but not all [1]) of NumPy's functions in its own namespace. In other words, if there's a function named numpy.foo , there's almost certainly a scipy.foo . Most of the time, the two appear to be exactly the same, oftentimes even pointing to the same function object. ...
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Xcode Project vs. Xcode Workspace - Differences

... linker flags, and they define which files (source code and resources) actually belong to a product. When you build/run, you always select one specific target. It is likely that you have a few targets that share code and resources. These different targets can be slightly different versions of an ap...
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Why does += behave unexpectedly on lists?

... The general answer is that += tries to call the __iadd__ special method, and if that isn't available it tries to use __add__ instead. So the issue is with the difference between these special methods. The __iadd__ special method is for an in-place addition, that i...
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Default filter in Django admin

How can I change the default filter choice from 'ALL'? I have a field named as status which has three values: activate , pending and rejected . When I use list_filter in Django admin, the filter is by default set to 'All' but I want to set it to pending by default. ...
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Get all related Django model objects

How can I get a list of all the model objects that have a ForeignKey pointing to an object? (Something like the delete confirmation page in the Django admin before DELETE CASCADE). ...