How can i substract a 1 month to a example that is a date?

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  cdaponte Member Posts: 29 Maven

  August 2019

  Perfect! And how can i convert from milliseconds to month? 

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  kayman Member Posts: 662 Unicorn

  August 2019

  @cdaponte,  You could use the date_get function for this (under generate attributes). This allows you the get the month value for the  current date and the 'older' date, and as these are numeric (0 to 11) you could simple calculate the difference (in months) 
  
  As in attached example : I used two (generated) dates, one is now and the other is like 2 months ago (50 days difference). this gives a number for each month (be aware that for some strange reason month numbers start with 0 for January instead of 1)
  
  

  <?xml version="1.0" encoding="UTF-8"?><process version="9.3.001">
    <context>
      <input/>
      <output/>
      <macros/>
    </context>
    <operator activated="true" class="process" compatibility="9.3.001" expanded="true" name="Process">
      <parameter key="logverbosity" value="init"/>
      <parameter key="random_seed" value="2001"/>
      <parameter key="send_mail" value="never"/>
      <parameter key="notification_email" value=""/>
      <parameter key="process_duration_for_mail" value="30"/>
      <parameter key="encoding" value="UTF-8"/>
      <process expanded="true">
        <operator activated="true" class="generate_macro" compatibility="9.3.001" expanded="true" height="82" name="Generate Macro" width="90" x="313" y="34">
          <list key="function_descriptions">
            <parameter key="MonthNow" value="date_get(date_now(),DATE_UNIT_MONTH)+1"/>
            <parameter key="MonthOld" value="date_get(date_add(date_now(),-50,DATE_UNIT_DAY),DATE_UNIT_MONTH)+1"/>
          </list>
        </operator>
        <connect from_port="input 1" to_op="Generate Macro" to_port="through 1"/>
        <connect from_op="Generate Macro" from_port="through 1" to_port="result 1"/>
        <portSpacing port="source_input 1" spacing="0"/>
        <portSpacing port="source_input 2" spacing="0"/>
        <portSpacing port="sink_result 1" spacing="0"/>
        <portSpacing port="sink_result 2" spacing="0"/>
        <description align="center" color="yellow" colored="false" height="50" resized="true" width="177" x="268" y="134">January = month 0</description>
      </process>
    </operator>
  </process>
  

  
  

  
  

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