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verzia 1.1, 2004/11/27 22:52:06

verzia 1.2, 2004/11/28 22:30:31

Riadok 1

<title id="hints-and-tips.title">Hints & tips</title>

Riadok 7

<title id="hints-and-tips.overview.title">Overview</title>

<para>

In this chapter you can find several useful tips, hints and other advices how

In this chapter you can find several useful tips, hints and other advices on

to accomplish more or less difficult particular database tasks using &name;

how to accomplish more or less difficult database tasks using &name; project.

project.

</para>

<para>

&name; is an open-souce application developed by open community. This

&name; is an open-source application developed by open community. This

community is proud of this project and is happy to share its knowledge with

others. So may be you. Please share with us your knowledge and contribute

others. Please share with us your knowledge and contribute

interesting examples of &name; usage, if you found some. You can do so by

using our <xref linkend="other-information.bug-tracking-system"

endterm="other-information.bug-tracking-system">

Riadok 28 endterm="other-information.bug-tracking-

Riadok 27 endterm="other-information.bug-tracking-

<title id="hints-and-tips.national-characters.title">Handling national characters</title>

<para>

&name; is used accros the whole world by many users of various nationalities

&name; is used across the whole world by many users of various nationalities

speaking and writting several different languages. The most common problem

speaking and writing several different languages. The most common problem

occured for these people located in the east, central or north Europe, Asia,

that occured for people located in the east, central or north Europe, Asia

but also in other countries is, that &name; does not handle their national

and other countries is, that &name; does not handle their national

language characters correctly.

</para>

<para>

The reason for this is very simple. In order to simplify &name; integration

into larger production systems, generated code does not contain by default any

into larger production systems, the generated code does not contain by default

HTML header or footer. But even if HTML header and footer is turned on,

any HTML header or footer. But even if the HTML header and footer is turned

generated META tags does not contain any entry defining proper type of content

on, the generated META tags do not contain any entry defining the proper type

and character set. It's up to you to send this kind information with the

of content and character set. It's up to you to send this kind information

served page. You can do this using HTTP protocol headers or HTML META tags.

with the served page. You can do this using HTTP protocol headers or HTML META

tags.

</para>

<para>

Here follows two examples how to define <constant>iso-8859-2</constant>

Below are two examples how to define an <constant>iso-8859-2</constant>

character set for the HTML page. This charset is most suitable for countries

in the central Europe, such as Slovakia, Czech republic, Poland, and so on.

in central Europe, such as Slovakia, Czech republic, Poland, and so on.

For your country you will certainly need to set different appropriate

For your country you will certainly need to determine the appropriate

character set.

<example><title>Charset defined with META tag</title>

Riadok 74 character set.

<title id="hints-and-tips.data-removal-protection.title">Data removal protection</title>

<para>

One very old database mainteinace rule basically says:

One very old database maintenance rule basically says:

</para>

<para>

<attribution>unknown author</attribution>

<simpara>No entry should by removed from database, but just marked as deleted.</simpara>

<simpara>No entry should by removed from a database, but just marked as deleted.</simpara>

</blockquote>

</para>

Riadok 93 According to this rule, we may want to i

</para>

<para>

Firstaval we need to set-up &name; to list only valid non-deleted records.

First of all we need to set-up &name; to list only valid non-deleted records.

This can be accomplished using <varname>$opts['filters']</varname>

configuration option. We suppose that we have table where

configuration option. We suppose that we have table where a column named

<varname>deleted</varname> column says if record is deleted or not.

<varname>deleted</varname> indicates if record is deleted or not.

<example><title>Non-deleted records listing</title>

<programlisting><![CDATA[

Riadok 107 $opts['filters'] = 'deleted IS NULL OR d

</para>

<para>

Than we have to create delete before trigger and we are done. Trigger PHP code

Than we have to create a "delete before" trigger and we are done. Trigger PHP code

should similarly looks like this one:

should look similar to this example:

<example><title>Trigger for marking records as deleted</title>

<programlisting><![CDATA[

Riadok 122 return false;

</para>

<para>

To recover particular record just change value in <varname>deleted</varname>

To recover a particular record just change the value in the <varname>deleted</varname>

column from <constant>1</constant> to <constant>0</constant>

using your SQL client or interface.

using your SQL client or interface (for example using

<application>phpMyAdmin</application>).

</para>

</sect1>

Riadok 135 using your SQL client or interface.

Riadok 136 using your SQL client or interface.

<para>

To integrate &name; into <ulink url="http://www.phpnuke.org/">PHP-Nuke</ulink>

content management system, just add <varname>name</varname> variable

content management system, just add a <varname>name</varname> variable

with <varname>$module_name</varname> value into set of &name;

with a <varname>$module_name</varname> value into a set of &name;

persistent variables.

<example><title>&name; integrated into PHP-Nuke</title>

Riadok 150 $opts['cgi']['persist']['name'] = $modul

Riadok 151 $opts['cgi']['persist']['name'] = $modul

<para>

Integration into <ulink url="http://www.postnuke.com/">PostNuke</ulink>

content management system is most like very similar to <xref

content management system is most likely very similar to <xref

endterm="hint-and-tips.integration.php-nuke"

linkend="hint-and-tips.integration.php-nuke">.

Riadok 158 linkend="hint-and-tips.integration.php-n

Riadok 159 linkend="hint-and-tips.integration.php-n

<bridgehead>other systems</bridgehead>

<para>

If you know useful information how to integrate &name; with particular

If you know useful information about how to integrate &name; with a particular

system, please notify project developers.

</para>

Platon Group <platon@platon.sk> http://platon.sk/


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