I'm trying to compare two timestamps but getting a type error:
"TypeError: '<' not supported between instances of 'float' and 'str'
The template code is using 'as_timestamp' and the documentation recommended using float() when comparing.
I'm trying to get the name and date of the sensor that has a date value that is closest to now() (in Home Assistant).
So I'm trying to do the following:
{%- set list = ['sensor.1','sensor.2','sensor.3','sensor.4'] -%}
{%- set data = namespace(min_date=float(as_timestamp(now() + timedelta(days = 360))), min_name = '') -%}
{%- for i in list %}
{%- set value = states(i) %}
{%- if float(as_timestamp(value)) < float(data.min_date) %}
{%- set data.min_date = value -%}
{%- set data.min_name = state_attr(i, 'friendly_name') -%}
{% endif %}
{%- endfor %}
{{ data.min_name + ' (' + data.min_date | timestamp_custom('%Y-%m-%dT%H:%M:%S%z') + ')' }}
Any ideas why data.min_date is a str in the comparison, despite the value being defined with both float() and as_timestamp() ?
had to remove the 'as_timestamp' from the initial value assignment and add it to the if statement. that solved it.
Related
I've got this working, but I was wondering if there is a cleaner way to write this using liquid. I'm pulling a string from theme settings which would like this:
"keyOne: valueOne, keyTwo:ValueTwo, keyThree:ValueThree"
Then in my liquid file I have this:
this is getting the string
{% assign messageList = settings.message | split: ',' %}
Loops over messageList and as long as there is a length it splits the text again by the colon and returns the key and value wrapped in quotes. Then checking the last iteration so that it doesn't add the comma
<script class="js-product-messages" type="application/json">
{
{%- for messages in messageList -%}
{%- if forloop.length > 0 -%}
{%- assign singalMessage = messages | split:':' -%}
"{{ singalMessage[0] | strip}}":"{{ singalMessage[1] | strip}}"{% unless forloop.last %},{% endunless -%}
{%- endif -%}
{%- endfor -%}
}
</script>
I'm new to dbt and jinja but trying my best.
We have a scenario where when using incremental merge our destination table schema is different from our Source schema so we'd like to only update/insert the common columns.
I'm loading my source columns into a variable then sending it as a configuration value like so:
{%- set src_cols = adapter.get_columns_in_relation(ref('pre_Dim_Entities_Client')) -%}
{{
config(
materialized='incremental',
unique_key='Entity_ID',
source_columns = src_cols
)
}}
SELECT *
FROM {{ ref ('pre_Dim_Entities_Client')}}
Then I've overridden merge.sql macro:
{% macro default__get_merge_sql(target, source, unique_key, dest_columns, predicates) -%}
{%- set predicates = [] if predicates is none else [] + predicates -%}
{%- set temp = config.get('source_columns') -%}
{{- print(temp) -}}
{%- set dest_cols_csv = get_quoted_csv(config.get('source_columns', default = dest_columns) | map(attribute="name"))%}
{%- set update_columns = config.get('merge_update_columns', default = dest_columns | map(attribute="quoted") | list) -%}
{%- set sql_header = config.get('sql_header', none) -%}
I've assigned the config value to a temp var and printed it to confirm what I suspected was the issue - the columns are not passed in source_columns configuration as I would have expected.
What am I doing wrong, and alternatively- Is there a better way to go about this issue?
Self-answer here -
Turns out passing variables in config block is problematic.
Instead I sent the source object name as a config value and in the merge macro retrieved the columns and updated dest_columns to the retrieved object.
{{
config(
materialized='incremental',
unique_key='Entity_ID',
source_scehma = 'pre_Dim_Entities_Client'
)
}}
SELECT *
FROM {{ ref ('pre_Dim_Entities_Client')}}
And in the merge macro:
{% macro default__get_merge_sql(target, source, unique_key, dest_columns, predicates) -%}
{%- set predicates = [] if predicates is none else [] + predicates -%}
{%- set src_name = config.get('source_scehma', none) -%}
{% if src_name %}
{%- set dest_columns = adapter.get_columns_in_relation(ref(src_name)) -%}
{% endif %}
{%- set dest_cols_csv = get_quoted_csv( dest_columns | map(attribute="name")) -%}
{%- set update_columns = config.get('merge_update_columns', default = dest_columns | map(attribute="quoted") | list) -%}
{%- set sql_header = config.get('sql_header', none) -%}
##Note:
In my solution I assume all source columns exist in the destination table.
If your need is to only take the common columns between source and destination the code should be modified accordingly.
I'm using Home Assistant templates, which run on Jinja2 script.
I have a group of entities (states.group.doors) that have attribute battery_level. I want to build an array of entities with battery_level < min_battery level and display as a string separated by commas.
I can't figure out what's wrong with my syntax. Two questions:
Is there just a better way overall to create a list that is filtered for battery_level < min_battery_level rather than building an array like I am?
If not, then there must be something wrong with the way I am building this array. Can someone spot it?
Thanks for the help.
The following code does successfully detect battery_level < 98 and display true if anything meets that criteria, so I'm almost there.
{% set min_battery_level = 98 -%}
{% set ns = namespace(found=false, entities=[]) -%}
{% set entities = [] -%}
{% for entity_id in states.group.doors.attributes.entity_id -%}
{% set parts = entity_id.split('.') -%}
{% if (state_attr(entity_id, 'battery_level') | replace("%","") | int) < min_battery_level -%}
{% set ns.found = true -%}
{% set entities = entities + [entity_id] -%}
{% endif -%}
{% endfor -%}
{{ ns.found }}
{{ entities | join(' ') }}
Welp... kept playing with it and got it working as follows:
{% set min_battery_level = 98 -%}
{% set ns = namespace(found=false, entities = []) -%}
{% for entity_id in states.group.doors.attributes.entity_id -%}
{% set name = state_attr(entity_id, 'friendly_name') | string -%}
{% set battery = state_attr(entity_id, 'battery_level') | replace("%","") | int -%}
{% if (battery) < min_battery_level -%}
{% set ns.found = true -%}
{% set ns.entities = ns.entities + [name+' ('+battery|string+'%)'] -%}
{% endif -%}
{% endfor -%}
{{ ns.found }}
{{ ns.entities | join(', ') }}
I have a github page, whose _include directory has a file courses.html:
{% assign id = include.lessonID | split: '.' %}
{% assign courseID = id | first %}
{% assign node = site.data.courses | where: "id","1" %}
{% assign node = node[1] %}
{%- if node.id == empty -%}
<h1> EMPTY NODE Warning</h1>
{%- else -%}
<h2> DATA Found! </h2>
ID: {{ node.id }}
{%- endif -%}
<p>CourseID: {{node.id}}</p>
<p>Name: {{ node.name }}</p>
<p>Link: {{ node.permalink }}</p>
{%- for node in site.data.courses -%}
{%- if node.id == 1 -%}
<p>{{ node.name }}</p>
<p>{{ node.permalink }}</p>
{%- endif -%}
{%- endfor -%}
It is being used by a file in _layout called courses.html:
{% include courses.html post=page.lessonInfo.lessonID post=page %}
Finally, there's file lister.md that has the following contents:
---
layout: courses
title: 'Test'
lessonInfo:
lessonID : 1.1
modName: 'Installing RHEL Server'
chapterName: 'Using Essential Tools'
---
# There should be some course list around here!
The output is as follows:
DATA Found!
ID:
CourseID:
Name:
Link:
RHCSA
/rhcsa
So, apparently the node variable isn't empty, but I can't access any of the properties when I'm selecting the right element of the array using where clause.
However, this works when using the second part using if statement in for loop. How do I fix the where clause?!
Edit
The suggestions by #JJJ did solve my problem, but I have a related problem now. I can't replace the constant 1 in the expression where: "id","1" with a variable! I tried the normal where clause (both with and without quotes) which didn't work. So, I tried a where expression, which also doesn't work:
{% assign node = site.data.courses | where: "id",courseID %}
Doesn't work!
{% assign node = site.data.courses | where_exp: "selNode","selNode.id == courseID" %}
Neither does this.
What am I doing wrong and how do I fix it?
Firstly, like in most programming languages, arrays are zero-indexed. node[1] contains the second node, not the first one. You probably meant {% assign node = node[0] %} instead.
Secondly, if node.id == empty isn't how you check if a value exists. Just do unless node or node.size == 0.
Converting from Django, I'm used to doing something like this:
{% if not var1 %} {% endif %}
and having it work if I didn't put var1 into the context. Jinja2 gives me an undefined error. Is there an easy way to say {% if var1 == None %} or similar?
From the Jinja2 template designer documentation:
{% if variable is defined %}
value of variable: {{ variable }}
{% else %}
variable is not defined
{% endif %}
{% if variable is defined %} is true if the variable is None.
Since not is None is not allowed, that means that
{% if variable != None %}
is really your only option.
You could also define a variable in a jinja2 template like this:
{% if step is not defined %}
{% set step = 1 %}
{% endif %}
And then You can use it like this:
{% if step == 1 %}
<div class="col-xs-3 bs-wizard-step active">
{% elif step > 1 %}
<div class="col-xs-3 bs-wizard-step complete">
{% else %}
<div class="col-xs-3 bs-wizard-step disabled">
{% endif %}
Otherwise (if You wouldn't use {% set step = 1 %}) the upper code would throw:
UndefinedError: 'step' is undefined
In the Environment setup, we had undefined = StrictUndefined, which prevented undefined values from being set to anything. This fixed it:
from jinja2 import Undefined
JINJA2_ENVIRONMENT_OPTIONS = { 'undefined' : Undefined }
Consider using default filter if it is what you need. For example:
{% set host = jabber.host | default(default.host) -%}
or use more fallback values with "hardcoded" one at the end like:
{% set connectTimeout = config.stackowerflow.connect.timeout | default(config.stackowerflow.timeout) | default(config.timeout) | default(42) -%}
You can use kind of Jinja Elvis operator
{{ 'OK' if variable is defined else 'N/A' }}
or additionally check emptiness
{{ 'OK' if (variable is defined and variable) else 'N/A' }}
Jinja templates - Template Designer Documentation
{% if variable is defined %} works to check if something is undefined.
You can get away with using {% if not var1 %} if you default your variables to False eg
class MainHandler(BaseHandler):
def get(self):
var1 = self.request.get('var1', False)
I had an issue like this in Ansible. Ended up having to do a test on both #Garret and #Carsten / #azalea answers, so:
{% if variable is defined and variable %}
value of variable: {{ variable }}
{% else %}
variable is not defined or is falsy
{% endif %}
You can do this :
- debug:
msg: "Executed only if variable is defined"
when:
- variable is defined