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django admin - add custom form fields that are not part of the model
I have a model registered in the admin site. 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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Maximum on http header values?
...ders size exceeds that limit.
Related question: How big can a user agent string get?
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Do I need to heartbeat to keep a TCP connection open?
...s that that communicate via TCP/IP. Component A acts as a server/listener and Component B is the client. The two should communicate as quickly as possible. There can only ever be one connection at any time (though that is aside to this question). A senior developer at my company has said I need ...
What are sessions? How do they work?
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@Gab是好人 REFERRER usually means an arbitrary string that the client sends in the "Referer" HTTP request header. It should contain the URL of the resource that, you know, referred the client to the current resource.
– Luke404
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PHP mail function doesn't complete sending of e-mail
...ed out.
Make sure the mail() function is called correctly
bool mail ( string $to , string $subject , string $message [, string $additional_headers [, string $additional_parameters ]] )
The mail function takes three required parameters and optionally a fourth and fifth one. If your call to mai...
Downloading MySQL dump from command line
...he contents of a MySQL database. Is there a way I can do this from the command line?
13 Answers
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performing HTTP requests with cURL (using PROXY)
...erver:port/
Then you can connect through proxy from (many) application.
And, as per comment below, for https:
export https_proxy=https://your.proxy.server:port/
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Search for all occurrences of a string in a mysql database [duplicate]
...-no-create-info --extended-insert=FALSE databasename | grep -i "<search string>"
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What is a “thread” (really)?
I have been trying to find a good definition, and get an understanding, of what a thread really is.
10 Answers
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How do I purge a linux mail box with huge number of emails? [closed]
I have setup some cron jobs and they send the crons result to an email. Now over the months I have accumulated a huge number of emails.
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