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Django FileField with upload_to determined at runtime

...ng to set up my uploads so that if user joe uploads a file it goes to MEDIA_ROOT/joe as opposed to having everyone's files go to MEDIA_ROOT. The problem is I don't know how to define this in the model. Here is how it currently looks: ...
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nginx server_name wildcard or catch-all

... Change listen option to this in your catch-all server block. (Add default_server) this will take all your non-defined connections (on the specified port). listen 80 default_server; if you want to push everything to index.php if the file or folder does not exist; try_files ...
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Email Address Validation in Android on EditText [duplicate]

... target) { return (!TextUtils.isEmpty(target) && Patterns.EMAIL_ADDRESS.matcher(target).matches()); } Kotlin: fun CharSequence?.isValidEmail() = !isNullOrEmpty() && Patterns.EMAIL_ADDRESS.matcher(this).matches() Edit: It will work On Android 2.2+ onwards !! Edit: Added miss...
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Binding an enum to a WinForms combo box, and then setting it

... in mind the tryparse is a .net 4.0 statement. – real_yggdrasil Jun 22 '12 at 7:53 For me SelectedValue is always null...
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How do I check if a list is empty?

...al consensus seems to be that duck typing wins out (in effect, saying that __nonzero__ is the interface for testing emptiness docs.python.org/reference/datamodel.html#object.__nonzero__) – andrew cooke May 31 '12 at 14:50 ...
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Can mustache iterate a top-level array?

...he'); var view = {test: 'div content', multiple : ['foo', 'bar'], multiple_2 : ['hello', 'world']}; var template = '<div>{{test}}</div><ul>{{#multiple}}<li>{{.}}</li>{{/multiple}}</ul><ul>{{#multiple_2}}<li>{{.}}</li>{{/multiple_2}}</ul>';...
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Accessing a Dictionary.Keys Key through a numeric index

...t;K, T> : IDictionary<K, T> { private IDictionary<K, T> _InnerDictionary; public K LastInsertedKey { get; set; } public MyDictionary() { _InnerDictionary = new Dictionary<K, T>(); } #region Implementation of IDictionary public void Add(Key...
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How can I search for a multiline pattern in a file?

... Regular Expressions GREP. For example, you need to find files where the '_name' variable is immediatelly followed by the '_description' variable: find . -iname '*.py' | xargs pcregrep -M '_name.*\n.*_description' Tip: you need to include the line break character in your pattern. Depending on yo...
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Vim: apply settings on files in directory

... @JasonMcCarrell My implementation of local_vimrc and Markus "embear" Braun's one have support for blacklist, whitelist... If you just need to specify how indentation is done, may be EditorConfig-vim plugin would be a better choice. – Luc Hermitt...
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Xcode/Simulator: How to run older iOS version?

... To add previous iOS simulator to Xcode 4.2, you need old xcode_3.2.6_and_ios_sdk_4.3.dmg (or similar version) installer file and do as following: Mount the xcode_3.2.6_and_ios_sdk_4.3.dmg file Open mounting disk image and choose menu: Go->Go to Folder... Type /Volumes/Xcode and iOS...