php - how to relate images to article id -

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i creating website using php , mysql in want save part of images' name article id.

eg: image_[$articleid]_1.jpg

currently taking article id "querying last id article table , adding 1 it".

i want know whether right way it, because giving article id images before inserting actual article database.

in worst case scenario wondering happen if 10 users inserting article @ same time.

does of know proper logic accomplish or doing right thing?

yes, run trouble in situation. there 2 solutions this:

  1. use auto-increment column; insert new article database before creating image filename, , update new record afterwards.

  2. create lock on images table before start insert records, , release once you're done updating database.

option 1 preferred option; allows concurrent use (nobody has wait before other users finished), , relieves of task of determining last id.


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