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Re: update mysql without manually tying SET statements [message #178169 is a reply to message #178160]

Wed, 16 May 2012 20:48

M. Strobel
Messages: 386
Registered: December 2011

Karma:

Senior Member

Am 16.05.2012 16:12, schrieb apavluck(at)gmail(dot)com:
> I am trying to setup some generic code that will allow me to update a mysql database via form and php. I can capture the data in the row of the database that I want to update. I can present that in a form populated with the existing values. What I can't figure out how to do is to avoid typing out the SET statements in the update query.
>
> ex
>
> $sql = "update myhugedatabase
> SET
> reporter = '$_POST[reporter]',
> date = '$_POST[date]',
> district = '$_POST[district]',
> village = '$_POST[village]',
> school = '$_POST[school]',
> address = '$_POST[address]',
> teacher = '$_POST[teacher]',
> teacher_contact = '$_POST[teacher_contact]',
> alt_teach = '$_POST[alt_teach]',
> alt_teach_contact = '$_POST[alt_teach_contact]',
> gps = '$_POST[gps]',
> etc
> etc
> etc
>
> The reason I want to do this is because I manage many projects all with their own variables and databases and the update is the only part that I have to type in manually.

If you don't use a framework, you must type in a SET statement for every single
column you want to save in the database. There is no getting around it. You must do
it at least once for every table.

You would normally do even more: apply some test/validation on every field, and make
sure required fields are not empty, and number fields contain numbers...

You do this nowadays with prepared statements, to be protected against SQL injection
attacks.

If you want generic code, you must define the fields and their properties somewhere
else in your code, this is normally not less work.

/Str.

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[Message index]

		update mysql without manually tying SET statements By: Alex Pavluck on Wed, 16 May 2012 14:12
		Re: update mysql without manually tying SET statements By: Shake on Wed, 16 May 2012 14:23
		Re: update mysql without manually tying SET statements By: Thomas 'PointedEars' on Wed, 16 May 2012 16:06
		Re: update mysql without manually tying SET statements By: Alex Pavluck on Thu, 17 May 2012 18:06
		Re: update mysql without manually tying SET statements By: Shake on Thu, 17 May 2012 19:06
		Re: update mysql without manually tying SET statements By: M. Strobel on Wed, 16 May 2012 20:48
		Re: update mysql without manually tying SET statements By: IRC on Thu, 17 May 2012 11:14
		Re: update mysql without manually tying SET statements By: Erwin Moller on Fri, 18 May 2012 08:49
		Re: update mysql without manually tying SET statements By: bill on Thu, 17 May 2012 11:09

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