Page 14 of 15«1212131415»
uCoz Community » uCoz Modules » Additional Features » Conditional Operators (<?if($VAR$)?>...<?else?>...<?endif?>)
Conditional Operators
Sunny
Posts: 9296
Reputation: 456

Message # 1 | 9:47 AM
Conditional operators for newbies and professionals.

If you do not understand how conditional operators work and the information in the Control Panel is not enough for you, I will try to explain. First, you should believe, that it is very easy!

Conditional operators are special codes-symbols, which can perform certain scenarios (scripts). You can create an absolutely new option on your site that is not provided in the Control Panel.

First, you must understand and get used to the components of the script code. They are:

<?if($code$)?> – it is some condition (code), which points to the operator whom and what we are dealing with. We can mentally replace it by the phrase «If there is»;

<?else?> – it is the operator which will do what you say if the condition corresponds to the indicated ones. Replace it mentally by the phrase «If not»;

<?endif?> – it is the end of the conditional operator, replace it mentally by «The end»;


Now let’s examine an easy example from the Control Panel:

(from Page Editor)

<?if($USER_LOGGED_IN$)?> Hello, $USERNAME$ <?else?> You are a GUEST. Please, register. <?endif?>

In our language it means: «If there is an authorized user, then «Hello, his/her login!», if not, «Hello, guest!» and the end.»

Now the details.

What did we use?

We said to <?if($code$)?> operator that our script is intended for saying hello to authorized users. We put the following code instead of $code$ - $USER_LOGGED_IN$ , i.e. we said «If there is an authorized user - <?if($USER_LOGGED_IN$)?>». Then the information, available only to authorized users, follows. At the same time, we may use conditions if they do not correspond to the indicated ones, in our example it is Guests. Therefore, after the information for registered users we enter the information for guests.

We get
<?if($USER_LOGGED_IN$)?> Hello, $USERNAME$ <?else?> Hello, Guest!

Now we have just to close it.
<?if($USER_LOGGED_IN$)?> Hello, $USERNAME$ <?else?> Hello, Guest! <?endif?>

We can also exclude Guests and display information for registered users only. For this purpose we just do not use «If not». We get the following:

<?if($USER_LOGGED_IN$)?> We are glad that you have registered! <?endif?>

It means that only those who have logged in will see the phrase «We are glad that you have registered!».

Any code, specified as working for a certain module, can be a condition for the work of operators. In our case (Page Editor), the following examples can be used:

Login and logout:
<?if($USER_LOGGED_IN$)?> <a href="$LOGOUT_LINK$">LOG OUT</a> <?else?> <a href="$LOGIN_LINK$">LOG IN</a> <?endif?>

Days after registration:
<?if($USER_LOGGED_IN$)?> You are with us for $USER_REG_DAYS$ days! <?else?> Please, register. <?endif?>

And so on.


Conditions for a script can be changed by means of additional capabilities, supported by the operators. They are «=», «>», «<» signs. If necessary, the equated conditions are separated by a vertical line. After the sign, you say to the operator to whom the whole script is directed.

<?if($code$='condition')?> I can see this <?else?> And here I can see this <?endif?>

Or

<?if($code$='condition')?> The main thing is that I can see this <?endif?>

Example:

<?if($USER$='John')?> John, don’t forget to read e-mail every day. <?endif?>

It means «If there are usernames and there is John among them (='John'), then this is to be displayed to him…»

The same is with groups, names, gender, date etc.
More examples:

<?if($USER$='Mike' or $USER$='Lola')?> Mike and Lola, here is a secret link …. <?endif?>

Groups:
<?if($GROUP_ID$=3 or $GROUP_ID$=4)?> Moderators and Administrators, click on the ad here… <?endif?>

And so on.

However, operators can work in each other. Example:

<?if($USER_LOGGED_IN$)?> Hello $USER$! <?if($GROUP_ID$=3 || $GROUP_ID$=4)?> Don’t forget to click on the ads! <?endif?> <?else?> Please, register. <?endif?>

The script is the following: «If there are logged-in users, then Hello, if there Administrators and Moderators among them, then add Click on ads, if there are unregistered users, we ask them to register, and the end.»


The main thing is that you must think well how to write a script, what codes to use and whom they will be directed to. You may write anything, uCoz is very flexible!

Additional mini-info:


  • The number of <?if($code$)?> and <?endif?> must be the same.
  • <?else?> is necessary if we output information for those, who don’t meet the conditions, otherwise it is not needed.
  • Alternative conditions or and and (|| and &&) are supported.
  • Nesting of operators is supported.
  • Comparing of variables to each other is supported: <?if($VAR1$=$VAR2$)?>
  • The text must be in quotes when comparing: <?if($USER$='Mike') ?>

    I'm not active on the forum anymore. Please contact other forum staff.
  • Animorph
    Posts: 2855
    Reputation: 189

    Message # 196 | 9:33 PM
    Sunny, Hello ,

    I have a question about conditional operators and Informers. ---> [ Photo Albums · Categories · Columns: 3 ]

    I made a informer to display Photo Album categories on my photo album mainpage.
    My problem with this is that they display from old to new the first categorie that is created will display first and the second one obviously as the second one.. and so on..

    But for my kind of photo album i want to do the opposite I want to display my informer like this:

    Instead of Old to newest created categorie i want the newest created categorie to display first and the older ones after that.

    Is this possible with conditional operators ?

    -----------------------------------------------------------------------------------------------------------------------

    Some information you might find useful to understand what i would like to achieve.

    Informer:

    Informer section:

    [ Photo Albums · Categories · Columns: 3 ] (is correct)

    Informer layout:

    Code
    <span class="uphoto" style="text-align: center;
    vertical-align: top;
    display: inline-block;">
      <span class="photo-block">
      <span class="ph-wrap">
      <span class="ph-tc" style="max-width:233px!important;max-height:233x!important;"><span style="position:absolute!important;"class="dropcap" class="text-center">$NUMBER$</span><span style="font-size: 1.6em;font-family: 'Open Sans', 'OpenSansExtrabold', 'Lucida Sans Unicode', 'Lucida Grande', sans-serif;
    color: #fff;
    font-weight: 800;
    line-height: 1.4;
    ;position:absolute;margin:auto;color:#fff;top:42%;bottom:0;left:0;right:0;"><b>$NUM_DATA$ Foto's</b></span><img src="http://foto-davy.do.am/css/UI.jpg"style="max-width:233px!important;max-height:233x!important;" alt="" title="" /></span>
      <a href="$$CATEGORY_URL$" data-url="$CATEGORY_URL$" class="ph-link" title="$NUMBER$">
      <span class="ph-tc">
      <span class="ph-data">
      <span class="ph-date">$DATE$</span>
      <span class="ph-descr"><?if(len($PHOTO_DESCR$)>120)?><?substr($PHOTO_DESCR$,0,117)?>...<?else?>$PHOTO_DESCR$<?endif?></span>
      <span class="ph-author" href="$PROFILE_URL$">$USER$</span>
      </span>
      </span>
      </a>
      </span>
      <span class="ph-details ph-js-details">
      <span style="margin-top:4px!important">$CATEGORY_NAME$
      </span>
    </span>


    is also correct. But i have no idea how to display the informers from new to old instead of old to new.

    (this probably needs to be done with conditional operators)

    Best regards Animorph.

    Sunny
    Posts: 9296
    Reputation: 456

    Message # 197 | 1:12 PM
    Animorph, categories are displayed in the informer in the same order they are displayed in Control Panel. So if you change the order in the CP (the 'Organize categories' option), the order will change in the informer as well.
    I'm not active on the forum anymore. Please contact other forum staff.
    Urs
    Posts: 285
    Reputation: 3

    Message # 198 | 3:10 PM
    Quote Urs ()
    <title>$SITE_NAME$ - $MODULE_NAME$</title> overwrites any conditional operator. (title)

    It would have been better if <title>$SITE_NAME$ - $MODULE_NAME$</title> applied to all pages except for the ones that use conditional operators.

    So that the conditional operator would overwrite <title>$SITE_NAME$ - $MODULE_NAME$</title> and not the other way around.


    Quote Sunny ()

    It is not necessary to remove the default code for title. In your example, if it is page200 - its specific title/meta tags will be displayed, if it is any other page - the default title will be displayed. In other words, the default title will be displayed on all pages where their specific titles are not set. The default title will not overwrite your conditions.


    It is the other way around. If i don't remove
    Code
    <title>$SITE_NAME$ - $MODULE_NAME$</title>
    it overwrites conditional operators every single time. I have to remove
    Code
    <title>$SITE_NAME$ - $MODULE_NAME$</title>
    and use only conditional operators which is hard and takes a lot of micromanagement, not to mention a huge white space if you look at the code of the website.

    _________________________________

    I also use this :

    <?if($URI_ID$='page5')?>
    <title>About page 5</title>
    <meta name="description" content="Page 5 is the best. Welcome to page 5.">
    <meta name="keywords" content="page 5, page, about page 5">

    <link rel="alternate" href="http://about.ucoz.com/index/0-5" hreflang="en" />
    <link rel="alternate" href="http://about.ucoz.com/index/0-6" hreflang="de" />

    <?endif?>

    BUT it doesn't take into account the red part ! (it doesn't insert it in the page 5).

    Need Help.

    Thank you.

    Post edited by Urs - Sunday, 2015-05-17, 3:11 PM
    Sunny
    Posts: 9296
    Reputation: 456

    Message # 199 | 2:42 PM
    Urs, provide the links to the pages of your website where the codes aren't working properly.
    I'm not active on the forum anymore. Please contact other forum staff.
    Urs
    Posts: 285
    Reputation: 3

    Message # 200 | 8:21 PM
    Hello,

    I managed to make the red text work on this domain : http://thassos.ucoz.com/ (it seems i forgot to put in on the first page, and then i only checked there to see if it was really working).

    Do you think there is a problem that so much white space appears in the source code of the site ? (CTRL + U in firefox)

    Also this code :

    Code
    <title>$SITE_NAME$ - $MODULE_NAME$</title>


    Written before the conditional operator seems to overwrite them in the browser. ( the titles )
    If it is written after them, it doesn't seem to do that.

    But in both cases you end up if you look at the source code of the site (CTRL + U in firefox) with two titles, which is a big problem because search engines will consider it a mistake.

    Best Regards.

    Post edited by Urs - Monday, 2015-05-18, 8:36 PM
    Sunny
    Posts: 9296
    Reputation: 456

    Message # 201 | 12:24 PM
    Quote Urs ()
    Written before the conditional operator seems to overwrite them in the browser. ( the titles )
    If it is written after them, it doesn't seem to do that.


    I suggest that you try to include it into the conditional operators. Haven't tested it but it should resolve the problem with two titles. Smth like this:

    Code
    <?if($URI_ID$='page5')?>
    <title>About page 5</title>
    <?if($URI_ID$='page6')?>
    <title>About page 6</title>
    <?else?>
    <title>$SITE_NAME$ - $MODULE_NAME$</title>
    <?endif?>
    <?endif?>


    Quote
    Do you think there is a problem that so much white space appears in the source code of the site ? (CTRL + U in firefox)


    I don't think it's a problem but I'm not 100% sure. Is the page HTML code in the CP okay, without the space?

    I'm not active on the forum anymore. Please contact other forum staff.
    Urs
    Posts: 285
    Reputation: 3

    Message # 202 | 11:50 AM
    It doesn't work.
    Your code looks good, but in reality the system interprets it in such a way that only the first command is taken into consideration, while the rest of the pages display nothing.

    Try it. (maybe i am wrong)

    The HTMLin control panel "site pages" looks good, but because you have tons of conditional operators when you actually visit the a page in the site and check the source code you see pages of white space, where nothing is written.

    Just praying the SEO module comes sooner to English language since i don't want to mess with the Russian one then change back to English for normal use, because it may even overwrite some of the stuff ?!

    Ed05
    Posts: 556
    Reputation: 7

    Message # 203 | 8:13 PM
    How can i get diferent color of reputation numbers,for example if there is minus reputation it will be red numbers shown and plus green color. i try
    Code
    <?if($REP_RATING$>20)?>  <div class="rep_plus">$_REPUTATION$</div>
    and
    Code
    <?if($_REPUTATION$='20')?>
    but it wont work.

    !
    Post edited by Ed05 - Thursday, 2015-05-28, 8:13 PM
    radicalfootball
    Posts: 2
    Reputation: 0

    Message # 204 | 2:09 PM
    Hello guys!
    I want to sort my entries with categories or tags! I create code with logical operators! For example i have three categories: "soccer", "photos" and "videos"! i create page named "latest videos"! i want create code which sort categories names and in my "latest videos" appear only videos! this is my code which don't work LOL !
    Code
    <?if($CATEGORIES$ = 'videos')?>$SOMETHING$<?endif?>
    please help me! sad sad

    ©Levani Jincharadze
    Sunny
    Posts: 9296
    Reputation: 456

    Message # 205 | 2:21 PM
    radicalfootball, use the category id code, e.g.

    Code
    <?if($CID$='1')?>

    I'm not active on the forum anymore. Please contact other forum staff.
    radicalfootball
    Posts: 2
    Reputation: 0

    Message # 206 | 4:44 PM
    Quote Sunny ()
    radicalfootball, use the category id code, e.g.

    Code
    <?if($CID$='1')?>


    thank you very much! excuse me where can i found this codes?
    Paradox
    Posts: 3275
    Reputation: 145

    Message # 207 | 4:26 AM
    radicalfootball, the category id? These can be found in the module categories listing in the Control Panel. smile
    Developer, Designer, Communicator.
    Been here for 6 years and counting.
    Visit me at alexmoloney.me.
    helte6213
    Posts: 184
    Reputation: 0

    Message # 208 | 5:30 PM
    hello guys i know this problem is here how to hide the user counter to all user and other visitor only me can see the user counter please help me thankss
    biggrin biggrin biggrin biggrin biggrin biggrin biggrin biggrin
    Attachments: 2123861.png(10Kb)
    bigblog
    *boops*
    Posts: 1463
    Reputation: 71

    Message # 209 | 7:27 PM
    helte6213, maybe with the things from the title of the thread?

    Quote Sunny ()
    <?if($GROUP_ID$=3 or $GROUP_ID$=4)?> Moderators and Administrators, click on the ad here… <?endif?>

    hey i'm joe, please don't call me on my real name because you're gonna misspell or mispronounce it and it drives me nuts
    Ed05
    Posts: 556
    Reputation: 7

    Message # 210 | 11:50 PM
    What code would i use for text "be first to comment this" happy

    Added (2015-10-05, 11:50 PM)
    ---------------------------------------------
    Never mind,i got it mu self cool
    <?if($COMMENTS_NUM$='0')?> Be first to comment this. <?endif?>


    !
    Post edited by Ed05 - Monday, 2015-10-05, 11:44 PM
    uCoz Community » uCoz Modules » Additional Features » Conditional Operators (<?if($VAR$)?>...<?else?>...<?endif?>)
    Page 14 of 15«1212131415»
    Search: