243 lines
		
	
	
		
			9.2 KiB
		
	
	
	
		
			HTML
		
	
	
	
			
		
		
	
	
			243 lines
		
	
	
		
			9.2 KiB
		
	
	
	
		
			HTML
		
	
	
	
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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  <title>Module HowTo - General module options</title>
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  <link rel="stylesheet" type="text/css" href="style/layout.css">
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</head>
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<body>
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<div style="text-align: center;">
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<h1>Module HowTo - General module options<br>
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</h1>
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<br>
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<br>
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<div style="text-align: left;"><br>
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<h2>1. Account types<br>
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</h2>
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LAM currently provides three account types: <span
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 style="font-weight: bold;">users, groups, hosts<br>
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</span>A module can manage one or more account types.<br>
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<br>
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The types are specified with <span style="font-weight: bold;">can_manage()</span>
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or <span style="font-weight: bold;">meta['account_types']</span>.<br>
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<br>
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<span style="font-weight: bold; text-decoration: underline;">Example:</span><br
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 style="font-weight: bold; text-decoration: underline;">
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<br>
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Our <span style="font-style: italic;">ieee802Device</span>
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module will be used only for host accounts.<br>
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<br>
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<table style="width: 100%; text-align: left;" class="mod-code"
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 border="0" cellpadding="2" cellspacing="2">
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  <tbody>
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    <tr>
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      <td style="vertical-align: top;">    /**<br>
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    * Returns meta data that is interpreted by parent
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class<br>
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    *<br>
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    * @return array array with meta data<br>
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    */<br>
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    <span style="font-weight: bold;">function</span>
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get_metaData() {<br>
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        $return = array();<br>
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        // manages host accounts<br>
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      <span style="color: rgb(255, 0, 0);">   
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    $return["account_types"] = array("host");</span><br
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 style="color: rgb(255, 0, 0);">
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        return $return;<br>
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    }<br>
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      </td>
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    </tr>
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  </tbody>
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</table>
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<br>
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<br>
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<h2>2. Base modules<br>
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</h2>
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In LDAP every entry needs exactly one <span style="font-style: italic;">structural
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object class</span>. Therefore all modules which provide a <span
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 style="font-style: italic;">structural object class</span> are marked
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as <span style="font-weight: bold;">base module</span>.<br>
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<br>
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This is done with <span style="font-weight: bold;">is_base_module()</span>
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or <span style="font-weight: bold;">meta['is_base']</span>.<br>
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<br>
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<span style="font-weight: bold; text-decoration: underline;">Example:</span><br
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 style="font-weight: bold; text-decoration: underline;">
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<br>
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The <span style="font-style: italic;">inetOrgPerson</span>
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module manages the structural object class "inetOrgPerson" and
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therefore is a <span style="font-weight: bold;">base module</span>.<br>
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If your module is not a base module you can skip the meta data for
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this, default is <span style="font-style: italic;">false</span>.<br>
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<br>
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<table style="width: 100%; text-align: left;" class="mod-code"
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 border="0" cellpadding="2" cellspacing="2">
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  <tbody>
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    <tr>
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      <td style="vertical-align: top;">    /**<br>
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    * Returns meta data that is interpreted by parent
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class<br>
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    *<br>
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    * @return array array with meta data<br>
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    */<br>
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    <span style="font-weight: bold;">function</span>
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get_metaData() {<br>
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        $return = array();<br>
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        // base module<br>
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      <span style="color: rgb(255, 0, 0);">   
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    $return["is_base"] = true;</span><br
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 style="color: rgb(255, 0, 0);">
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        return $return;<br>
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    }<br>
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      </td>
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    </tr>
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  </tbody>
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</table>
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<br>
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<br>
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<h2>3. Alias name</h2>
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The module name is very limited, therefore every module has an <span
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 style="font-style: italic;">alias name</span>. This <span
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 style="font-style: italic;">alias name</span> has no limitations and
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can be translated. It may contain special characters but make sure that
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it does not contain HTML special characters like "<".<br>
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The <span style="font-style: italic;">alias name </span>can be the
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same for all managed <span style="font-style: italic;">account types</span>
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or differ for each type.<br>
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<br>
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The <span style="font-style: italic;">alias name</span> is specified
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with <span style="font-weight: bold;">get_alias()</span>
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or <span style="font-weight: bold;">meta['alias']</span>.<br>
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<br>
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<span style="font-weight: bold; text-decoration: underline;">Example:</span><br
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 style="font-weight: bold; text-decoration: underline;">
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<br>
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Our <span style="font-style: italic;">ieee802Device</span>
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module will get the alias MAC address.<br>
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<br>
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<table style="width: 100%; text-align: left;" class="mod-code"
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 border="0" cellpadding="2" cellspacing="2">
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  <tbody>
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    <tr>
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      <td style="vertical-align: top;">    /**<br>
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    * Returns meta data that is interpreted by parent
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class<br>
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    *<br>
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    * @return array array with meta data<br>
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    */<br>
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    <span style="font-weight: bold;">function</span>
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get_metaData() {<br>
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        $return = array();<br>
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        // manages host accounts<br>
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      <span style="color: rgb(255, 0, 0);">   
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    </span>$return["account_types"] = array("host");<br
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 style="color: rgb(255, 0, 0);">
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        // alias name<br>
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      <span style="color: rgb(255, 0, 0);">   
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    $return["alias"] = _("MAC address");</span><br
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 style="color: rgb(255, 0, 0);">
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        return $return;<br>
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    }<br>
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      </td>
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    </tr>
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  </tbody>
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</table>
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<br>
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<br>
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<h2>4. Dependencies</h2>
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Modules can depend on eachother. This is useful if you need to access
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attributes from other modules or the managed object classes of your
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module are not structural.<br>
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<br>
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The dependencies are specified with <span style="font-weight: bold;">get_dependencies()</span>
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or <span style="font-weight: bold;">meta['dependencies']</span>.<br>
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<br>
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<span style="font-weight: bold; text-decoration: underline;">Example:</span><br
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 style="font-weight: bold; text-decoration: underline;">
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<br>
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Our <span style="font-style: italic;">ieee802Device</span>
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module depends on the account module (because it is the only structural
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module at this time).<br>
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<br>
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<table style="width: 100%; text-align: left;" class="mod-code"
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 border="0" cellpadding="2" cellspacing="2">
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  <tbody>
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    <tr>
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      <td style="vertical-align: top;">    /**<br>
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    * Returns meta data that is interpreted by parent
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class<br>
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    *<br>
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    * @return array array with meta data<br>
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    */<br>
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    <span style="font-weight: bold;">function</span>
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get_metaData() {<br>
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        $return = array();<br>
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        // manages host accounts<br>
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      <span style="color: rgb(255, 0, 0);">   
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    </span>$return["account_types"] = array("host");<br
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 style="color: rgb(255, 0, 0);">
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        // alias name<br>
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        $return["alias"] = _("MAC
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address");<br>
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        // module dependencies<br>
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      <span style="color: rgb(255, 0, 0);">   
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    $return['dependencies'] = array('depends' =>
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array('account'), 'conflicts' => array());</span><br
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 style="color: rgb(255, 0, 0);">
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        return $return;<br>
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    }<br>
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      </td>
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    </tr>
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  </tbody>
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</table>
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<br>
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<br>
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<h2>5. Messages</h2>
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There are many situations where you will display messages to the user.
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The modules should define such messages at a common place to make it
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easier to modify them without searching the complete file.<br>
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The <span style="font-style: italic;">baseModule</span> offers the $<span
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 style="font-weight: bold;">messages</span> variable for this. It
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should be filled by a function called <span style="font-weight: bold;">load_Messages()</span>.<br>
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The <span style="font-style: italic;">baseModule</span> will
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automatically check if you have implemented this function and call it
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at construction time.<br>
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<br>
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<span style="font-weight: bold; text-decoration: underline;">Example:</span><br
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 style="font-weight: bold; text-decoration: underline;">
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<br>
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Now let our <span style="font-style: italic;">ieee802Device</span>
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module define a message.<br>
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<br>
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<table style="width: 100%; text-align: left;" class="mod-code"
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 border="0" cellpadding="2" cellspacing="2">
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  <tbody>
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    <tr>
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      <td style="vertical-align: top;">    /**<br>
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    * This function fills the error message array with
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messages<br>
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    */<br>
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    <span style="font-weight: bold;">function</span> <span
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 style="color: rgb(255, 0, 0);">load_Messages</span>() {<br>
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        $this->messages['mac'][0] =
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array('ERROR', 'MAC address is invalid!');  // third array value
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is set dynamically<br>
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    }<br>
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      </td>
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    </tr>
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  </tbody>
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</table>
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<br>
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<br>
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<h2><br>
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</h2>
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<h2></h2>
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<br>
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<br>
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<span style="font-weight: bold;"></span>
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<h2><span style="font-weight: bold;"></span></h2>
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</div>
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</div>
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</body>
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</html>
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