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en:extensions:workflowdesigner:custom-functions [2014/10/15 18:55] swarnat |
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- | ====== Custom functions ====== | ||
- | <WRAP important round> | ||
- | ==== Important ==== | ||
- | **This Page describe a feature, which require PHP development skills.** | ||
- | If you use this feature in a wrong way, you could crash the Workflow! | ||
- | </WRAP> | ||
- | |||
- | Lots of Workflow Tasks in the Designer could use custom functions. | ||
- | |||
- | You recognize the option to use this functions, if you have an green border around a textfield and a special icon () next to the textbox. | ||
- | |||
- | Almost all such fields have special hints about this function. (for example, what value you have to return) | ||
- | |||
- | These scripts are default PHP Scripts with limited functions. All whitelisted PHP functions have the same arguments, like the original one. | ||
- | **Each custom function have to return a value with the "return"statement.** | ||
- | |||
- | You could use the following PHP functions: | ||
- | |||
- | * md5, rand, implode, substr, explode, microtime, date, time, sha1, hash, intval, floatval, floor, ceil, foreach | ||
- | * all functions, started with "str" (strpos, str_pad, str_replace, ...) | ||
- | |||
- | |||
- | ==== Additional functions ==== | ||
- | |||
- | There are existing some special functions you could use to do vtiger related special tasks. | ||
- | Also you could create your own functions. [[en:extensions:workflowdesigner:customization|Read here]] | ||
- | |||
- | Read the full documentation here: [[https://support.stefanwarnat.de/custom-functions/]] | ||
- | |||
- | ==== custom function Examples ==== | ||
- | |||
- | This example is only written to demonstrate the functions and could be done better. | ||
- | <code php> | ||
- | $var1 = "864"."0"; | ||
- | $var1 = $var1.(0 + intval($vtiger_purchaseorder)).intval($vtiger_purchaseorder); | ||
- | $var2 = 1 + (2 * 5) - 8; | ||
- | $var1 = substr($var1, 0, 5); | ||
- | if($vtiger_purchaseorder == "1") { | ||
- | $add = intval($var1) * $var2; | ||
- | return time() + $add; | ||
- | } else { | ||
- | $add = intval($var1) * intval($vtiger_purchaseorder); | ||
- | return time() + $add; | ||
- | } | ||
- | </code> | ||
- | |||
- | These function could be used inside the delay task to wait one day, or the amount of days in the Purchase Order Field of an invoice. | ||
- | |||
- | **Here you could see one limitation of my implementation:** | ||
- | |||
- | If you want use mathematical operations, you have to use parentheses to become the correct result, because the system ignore basic mathematical rules. | ||
- | |||
- | ==== Other examples ==== | ||
- | |||
- | Wait until same day next month | ||
- | <code php> | ||
- | return date("Y-m-d", strtotime("+1 month")); | ||
- | </code> | ||
- | |||
- | Wait 5 days | ||
- | <code php> | ||
- | $days = 5; | ||
- | $date = strtotime($datefield); | ||
- | return date("Y-m-d", $date + (86400 * $days)) | ||
- | </code> |