大约有 42,000 项符合查询结果(耗时:0.0513秒) [XML]

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Django self-referential foreign key

...in general so this might be a dumb question. I want to make a model ("CategoryModel") with a field that points to the primary id of another instance of the model (its parent). ...
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How do I set bold and italic on UILabel of iPhone/iPad?

How do I set bold and italic on UILabel of iPhone/iPad? I searched the forum but nothing helped me. Could anyone help me? ...
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lsof survival guide [closed]

lsof is an increadibly powerful command-line utility for unix systems. It lists open files, displaying information about them. And since most everything is a file on unix systems, lsof can give sysadmins a ton of useful diagnostic data. ...
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django admin - add custom form fields that are not part of the model

...te. One of its fields is a long string expression. I'd like to add custom form fields to the add/update page of this model in the admin that based on these fields values I will build the long string expression and save it in the relevant model field. ...
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Change from SQLite to PostgreSQL in a fresh Rails project

...coding: utf8 database: project_development pool: 5 username: password: test: &TEST adapter: postgresql encoding: utf8 database: project_test pool: 5 username: password: production: adapter: postgresql encoding: utf8 database: project_production pool: 5 username:...
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How to return multiple values? [duplicate]

Is it possible to return two or more values from a method to main in Java? If so, how it is possible and if not how can we do? ...
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I change the capitalization of a directory and Git doesn't seem to pick up on it

...n OS X Lion that is under Git version control. I had these lowercase directories and then later capitalized them (e.g. emailaddresses => EmailAddresses), but Git doesn't seem to recognize the change. It still thinks the directories are lowercase when I run git ls-files and other commands. ...
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Biggest GWT Pitfalls? [closed]

...roject that we chose to implement using GWT. Has anyone encountered any major pitfalls in using GWT (and GWT-EXT) that were unable to be overcome? How about from a performance perspective? ...
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Using SignalR with Redis messagebus failover using BookSleeve's ConnectionUtils.Connect()

... The SignalR team has now implemented support for a custom connection factory with StackExchange.Redis, the successor to BookSleeve, which supports redundant Redis connections via ConnectionMultiplexer. The initial problem encountered was that in spite of creating m...
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Java “user.dir” property - what exactly does it mean?

I want to use user.dir dir as a base dir for my unit tests (that creates a lot of files). Is it correct that this property points to the current working directory (e.g. set by the 'cd' command)? ...