Tổng hợp xenforo code Conditionals phần 1

The following conditional statements will only work in templates which support the arguments and parameters.

Statements can be expanded using AND, OR, and <xen:else />.

Replacing == with != in the following examples will change the condition from true to false.

For example, <xen:if is="{$visitor.user_id} == x"> for true, <xen:if is="{$visitor.user_id} != x">for false.

Where an argument only contains a single parameter, inserting a ! before the parameter has the same effect.

For example, <xen:if is="{$visitor.user_id}"> for true, <xen:if is="!{$visitor.user_id}"> for false.

When working with arrays, the ! is placed just before the argument.

For example, <xen:if is="in_array({$forum.node_id}, array(x, y, z))"> for true, <xen:if is="!in_array({$forum.node_id}, array(x, y, z))"> for false.

Depending on the template being worked with, you may need to use $user instead of $visitor; $visitor is always the record for the current logged in user, $user is the record being processed (e.g. message author, member list, list of online users, etc.).

When working with the PAGE_CONTAINER template, you can pass variables from the view templates (category_view, forum_view, thread_view, etc.) using xen:container. The same applies to any templates which are included in the PAGE_CONTAINER template; the header or ad_header templates for example.
To use the $forum.node_id variable for example, you would add this to the PAGE_CONTAINER template: <xen:container var="$forumId">{$forum.node_id}</xen:container>.
Similarly for the $threadId variable, you would add this: <xen:container var="$threadId">{$thread.thread_id}</xen:container>.

Where variables such as x, y, or z have been used, these must be replaced with actual values.

How can I show content just to logged in members and hide it from guests?

Mã:

<xen:if is="{$visitor.user_id}">
This content will show to logged in members
</xen:if>

How can I show content just to guests and hide it from logged in members?

Mã:

<xen:if is="!{$visitor.user_id}">
This content will show to guests
</xen:if>

How can I show different content to guests and logged in members?

Mã:

<xen:if is="{$visitor.user_id}">
This content will show to logged in members
<xen:else />
This content will show to guests
</xen:if>

How can I show content to a specific user group?

Mã:

<xen:if is="{xen:helper ismemberof, $visitor, x}">
This content will show to members of user group x
</xen:if>

How can I hide content from a specific user group?

Mã:

<xen:if is="!{xen:helper ismemberof, $visitor, x}">
This content will be hidden from members of user group x
</xen:if>

How can I show content to more than one user group?

Mã:

<xen:if is="{xen:helper ismemberof, $visitor, x, y}">
This content will show to members of user groups x or y
</xen:if>

How can I hide content from more than one user group?

Mã:

<xen:if is="!{xen:helper ismemberof, $visitor, x, y}">
This content will be hidden from members of user groups x or y
</xen:if>

How can I show content to Administrators?

Mã:

<xen:if is="{$visitor.is_admin}">
This content will show to Administrators
</xen:if>

How can I show content to Moderators?

Mã:

<xen:if is="{$visitor.is_moderator}">
This content will show to Moderators
</xen:if>

How can I show content to Administrators and Moderators?

Mã:

<xen:if is="{$visitor.is_admin} OR {$visitor.is_moderator}">
This content will show to Administrators and Moderators
</xen:if>

How can I show content to a specific member?

Mã:

<xen:if is="{$visitor.user_id} == x">
This content will show to member x
</xen:if>

How can I show content to more than one member?

Mã:

<xen:if is="in_array({$visitor.user_id}, array(x, y, z))">
This content will show to members x, y and z
</xen:if>

How can I show content after the first post in a thread?

Mã:

<xen:if is="{$post.position} == 0 AND !{$message.conversation_id}">
This content will show after the first post in a thread
</xen:if>

How can I show content after the first post in a thread or conversation?

Mã:

<xen:if is="{$post.position} == 0">
This content will show after the first post
</xen:if>

How can I show content after post x on every page in a thread?

Mã:

<xen:if is="{$post.position} % {$xenOptions.messagesPerPage} == x AND !{$message.conversation_id}">
This content will show after post x on every page in a thread
</xen:if>

How can I show content after post x on every page in a thread or conversation?

Mã:

<xen:if is="{$post.position} % {$xenOptions.messagesPerPage} == x">
This content will show after post x on every page
</xen:if>

How can I show content after post x on every page, only in forums y and z?

Mã:

<xen:if is="{$post.position} % {$xenOptions.messagesPerPage} == x AND in_array({$thread.node_id}, array(y, z))">
This content will show after post x on every page, only in forums y and z
</xen:if>

How can I show content after post x on every page, except in forums y and z?

Mã:

<xen:if is="{$post.position} % {$xenOptions.messagesPerPage} == x AND !in_array({$thread.node_id}, array(y, z))">
This content will show after post x on every page, except in forums y and z
</xen:if>

How can I show content on a specific page?

Mã:

<xen:if is="{$contentTemplate} == 'xyz'">
This content will show on the xyz template
</xen:if>

How can I show content in a specific category?

Mã:

<xen:if is="{$category.node_id} == x">
This content will show in category x
</xen:if>

Note that in order for this to work, you must have categories set as pages in the ACP -> Options -> Node & Forum List: Create Pages for Categories.

How can I show content in a specific forum?

Mã:

<xen:if is="{$forum.node_id} == x">
This content will show in forum x
</xen:if>

How can I show content in more than one forum?

Mã:

<xen:if is="in_array({$forum.node_id}, array(x, y, z))">
This content will show in forums x, y, and z
</xen:if>

How can I show content in a specific thread?

Mã:

<xen:if is="{$threadId} == x">
This content will show in thread x
</xen:if>

How can I show content in more than one thread?

Mã:

<xen:if is="in_array({$threadId}, array(x, y, z))">
This content will show in threads x, y, and z
</xen:if>

How can I show content in a specific post?

Mã:

<xen:if is="{$postId} == x">
This content will show in post x
</xen:if>

How can I show content in more than one post?

Mã:

<xen:if is="in_array({$postId}, array(x, y, z))">
This content will show in posts x, y, and z
</xen:if>

How can I show content to the thread author?

Mã:

<xen:if is="{$thread.user_id} == x">
This content will show to thread author x
</xen:if>

How can I show content if the post author is the thread author?

Mã:

<xen:if is="{$post.user_id} == {$thread.user_id}">
This content will show if the post author is the thread author
</xen:if>

How can I show content to members with 0 posts?

Mã:

<xen:if is="{$visitor.message_count} == 0">
This content will show to members with 0 posts
</xen:if>

How can I show content to members with more than x posts?

Mã:

<xen:if is="{$visitor.message_count} > x">
This content will show to members with more than x posts
</xen:if>

How can I show content to members with less than x posts?

Mã:

<xen:if is="{$visitor.message_count} < x">
This content will show to members with less than x posts
</xen:if>

How can I show content to members who have not confirmed their email address?

Mã:

<xen:if is="{$isAwaitingEmailConfirmation}">
This content will show to members who have not confirmed their email address
</xen:if>

How can I show content to visitors arriving from search engines?

Mã:

<xen:if is="{$visitor.from_search}">
This content will show to visitors arriving from search engines
</xen:if>