netlify-cms-widget-create-select
v1.1.5
Published
A simple create select widget for netlify-cms which allows creating entries. The create select widget's entries are up to date to the last website build. The create select can be populated by plain text file, json file, RSS feed or HTML page.
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netlify-cms-widget-create-select
A simple create select widget for netlify-cms which allows creating entries. The create select widget's entries are up to date to the last website build. The create select can be populated by plain text file, json file, RSS feed or HTML page.
Install
As an npm package:
npm install --save netlify-cms-widget-create-select
import { CreatableSelectControl, CreatableSelectPreview } from 'netlify-cms-widget-create-select'
CMS.registerWidget('create-select', CreatableSelectControl, CreatableSelectPreview);
Via script
tag:
<script src="https://unpkg.com/netlify-cms-widget-create-select@^1.1.0"></script>
<script>
CMS.registerWidget('create-select', window.CreatableSelectControl, window.CreatableSelectPreview)
</script>
How to use
Integrate with HTML page
If the built page has all the options you want in a specific html page you can scrape the options from that page.
For example let's say https://www.example.com/tags/
contains the following html page.
<!DOCTYPE html>
<html>
<head></head>
<body>
<ol id="tag-list">
<li class="tag" data-tag="tag-1">Tag 1</li>
<li class="tag" data-tag="tag-2">Tag 2</li>
<li class="tag" data-tag="tag-3">Tag 3</li>
</ol>
</body>
</html>
You can query the options tag-1
, tag-2
, tag-3
with the following configuration
fields:
- name: 'tags'
label: 'Tags'
widget: 'create-select'
mode: 'html'
url: 'https://www.example.com/tags/'
query: '#tag-list > .tag'
attribute: 'data-tag'
multiple: true
Integrating with sitemap.xml
You can deduce the tags using the sitemap.xml
file. For example if you want to match the string https://www.example.com/tags/<tag-value>/
you can do it the following way.
- name: 'sitemap'
label: 'Sitemap Example'
widget: 'create-select'
mode: 'xml'
url: 'sitemap.xml'
query: 'loc'
capture: '(?<=https:\/\/www\.example\.com\/tags\/).+(?=\/\b)'
multiple: true
Integrate with HUGO RSS feed
Many HUGO website have /tags/index.xml
page with the RSS feed of the tags. An example of the structure of such files is:
<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
<channel>
<title>Tags on Hugo Themes</title>
<link>https://www.example.com/tags/</link>
<description>Recent content in Tags on Hugo Themes</description>
<generator>Hugo -- gohugo.io</generator>
<atom:link href="https://www.example.com/tags/index.xml" rel="self" type="application/rss+xml" />
<item>
<title>tag1</title>
<link>https://www.example.com/tags/tag-1/</link>
<pubDate>Mon, 11 Mar 2019 00:00:00 +0000</pubDate>
<guid>https://www.example.com/tags/tag-1/</guid>
<description></description>
</item>
<item>
<title>tag2</title>
<link>https://www.example.com/tags/tag-2/</link>
<pubDate>Mon, 11 Mar 2019 00:00:00 +0000</pubDate>
<guid>https://www.example.com/tags/tag-2/</guid>
<description></description>
</item>
</channel>
</rss>
The RSS feed of the preview page can be used to populate the select widget. This can be done the following way.
fields:
- name: 'tags'
label: 'Tags'
widget: 'create-select'
mode: 'xml'
url: 'https://www.example.com/tags/index.xml'
query: 'item > title'
multiple: true
Integrate with HUGO using custom output.
Alternativelly you can make a custom output on the page to populate the select widget.
- Make a custom output adding the following lines in the hugo
config.yaml
fileoutputFormats: Ingredients: baseName: ingredients isPlainText: true mediaType: text/plain
- add a
layouts/_default/single.ingredients.txt
template file to generate the select options.{{- $scratch := .Scratch -}} {{- with .Site.GetPage "/recipes" -}} {{- range .Pages -}} {{- range .Params.ingredients -}} {{- $scratch.Set . true -}} {{- end -}} {{- end -}} {{- end -}} {{- range $key, $value := $scratch.Values -}} {{- $key -}}{{- "\n" -}} {{- end -}}
- add a markdown file with the followind front-matter. For example
content/ingredients.md
--- _build: list: false #prevent file to be listed in sitemap.xml outputs: [ingredients] ---
- Now when you compile the page with the command
hugo
there should be a file generated calledpublic/ingredients.txt
. The content of the file should be similar to the following:olive oil salt sugar
- You can add the followind confin in the netlify
config.yml
to have a select widget query from theingredients.txt
file:fields: - name: 'ingredients' label: 'Ingredients' widget: 'create-select' url: 'https://www.example.com/ingredients.txt' mode: 'plain' multiple: true
Configuration
Create-select widgets may have the following properties in addition to the defaults used by netlity.
mode
- string - required
Endpoint file type possible values being "html"
, "xml"
, "json"
, "plain"
.
url
- string - required
The URI of the endpoint which to request the file to populate the select options.
query
- string - optional
Query to obtain the data points.
- With
xml
orhtml
modes the query is a css selector e.g.query: "div.chapter > .title"
. This field is required. - With
json
mode query is a dot separated chain of attributes e.g.query: "data.config.users"
. If not specified the root object will be used. Note that the query should give an array type. - With
plain
mode this field will be ignored.
attribute
- string - optional
Attribute to use as value for each data points.
- With
xml
orhtml
modes this is an attribute of the element e.g.class
,id
,data-attr
. If not sepcified thetextContent
will be used instead. - With
mode: json
query is a dot separated chain of attributes e.g.query: "name.firstName"
. If not specified the root object will be used. Note that the query should give a string type. - With
plain
mode this field will be ignored.
filter
- string - optional
Regex for whitch the matching data point's value will be used otherwise the data point is filtered out. The filtering happens before the string is captured.
capture
- string - optional
Regex for whitch the matching content will be used by the widget. E.g. capture: "(?<=https:\\/\\/www\\.example\\.com\\/tags\\/).+(?=\\/)"
to capture tag1
from the value https://www.example.com/tags/tag1/
.
If there is no match the data point will be removed.
multiple
- boolean - optional
Allow multiple entries.
min
- number - optional
Minimum number of entries.
max
- number - optional
Maximum number of entries.
Support
For help with this widget, open an issue.