![]() Utcnow() returns a datetime object of the current time in the UTC timezone. Using now() will cause templates to be refreshed at the start of every new minute.You can also use: now().second, now().minute, now().hour, now().day, now().month, now().year, now().weekday() and now().isoweekday() and other datetime attributes and functions.Now() returns a datetime object that represents the current time in your time zone. Now(), relative_time(), today_at(), and utcnow() are not supported in limited templates. This form of the expression short-circuits so if the platform is event the expression trigger.to_state.state will never be evaluated and won’t cause an error. Instead you have to do this if atform = 'event' else trigger.to_state.state. This won’t work because both expressions will be evaluated and one will fail since the field doesn’t exist. This means you cannot use this filter to prevent executing an expression which would result in an error.įor example, if you wanted to select a field from trigger in an automation based on the platform you might go to make this template: atform = 'event' | iif(, trigger.to_state.state). The if_true, if_false and if_none expressions will all be evaluated and the filter will simply return one of the resulting values. The immediate if filter does not short-circuit like you might expect with a typical conditional statement. ![]() The following example results in the number 20.001: The examples below show the output of a temperature sensor with state 20.001, unit ☌ and user configured presentation rounding set to 1 decimal. Script : msg_who_is_home : sequence : - service : notify.notify data : message : > To keep a clear overview, consider using YAML multiline strings to define your templates: Navigate to Developer Tools > Template, create your template in the Template editor and check the results on the right. The frontend has a template editor tool to help develop and debug templates. We will not go over the basics of the syntax, as Jinja2 does a great job of this in their templates documentation. Jinja2 supports a wide variety of operations: This means that we are using their syntax and make some custom Home Assistant variables available to templates during rendering. Templating in Home Assistant is powered by the Jinja2 templating engine. Process incoming data from sources that provide raw data, like MQTT, rest sensor or the command_line sensor.Formatting outgoing messages in, for example, the notify platforms and Alexa integration.Templating is a powerful feature that allows you to control information going into and out of the system. Home Assistant architecture, especially states.Terse Mode and Json Lines Mode - one object per line with no commas separating objects.This is an advanced feature of Home Assistant.Optionally do not write out field : value if field value is empty.Optionally output null instead of "" for empty fields.Convert value of NULL in CSV to be null in JSON.Sort CSV data in ascending or descending order before converting to JSON.Create nested JSON output by using / in the column headings of CSV.Īrrays are created from duplicate column names or /0, /1.Filter JSON output by using the query tool. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |