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| id ▼ | page | ref | title | content | breadcrumbs | references |
|---|---|---|---|---|---|---|
| custom_templates:custom-pages-errors | custom_templates | custom-pages-errors | Custom error pages | Datasette returns an error page if an unexpected error occurs, access is forbidden or content cannot be found. You can customize the response returned for these errors by providing a custom error page template. Content not found errors use a 404.html template. Access denied errors use 403.html . Invalid input errors use 400.html . Unexpected errors of other kinds use 500.html . If a template for the specific error code is not found a template called error.html will be used instead. If you do not provide that template Datasette's default error.html template will be used. The error template will be passed the following context: status - integer The integer HTTP status code, e.g. 404, 500, 403, 400. error - string Details of the specific error, usually a full sentence. title - string or None A title for the page representing the class of error. This is often None for errors that do not provide a title separate from their error message. | ["Custom pages and templates"] | [{"href": "https://github.com/simonw/datasette/blob/main/datasette/templates/error.html", "label": "default error.html template"}] |
| custom_templates:customization-css-and-javascript | custom_templates | customization-css-and-javascript | Custom CSS and JavaScript | When you launch Datasette, you can specify a custom metadata file like this: datasette mydb.db --metadata metadata.json Your metadata.json file can include links that look like this: { "extra_css_urls": [ "https://simonwillison.net/static/css/all.bf8cd891642c.css" ], "extra_js_urls": [ "https://code.jquery.com/jquery-3.2.1.slim.min.js" ] } The extra CSS and JavaScript files will be linked in the <head> of every page: <link rel="stylesheet" href="https://simonwillison.net/static/css/all.bf8cd891642c.css"> <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script> You can also specify a SRI (subresource integrity hash) for these assets: { "extra_css_urls": [ { "url": "https://simonwillison.net/static/css/all.bf8cd891642c.css", "sri": "sha384-9qIZekWUyjCyDIf2YK1FRoKiPJq4PHt6tp/ulnuuyRBvazd0hG7pWbE99zvwSznI" } ], "extra_js_urls": [ { "url": "https://code.jquery.com/jquery-3.2.1.slim.min.js", "sri": "sha256-k2WSCIexGzOj3Euiig+TlR8gA0EmPjuc79OEeY5L45g=" } ] } This will produce: <link rel="stylesheet" href="https://simonwillison.net/static/css/all.bf8cd891642c.css" integrity="sha384-9qIZekWUyjCyDIf2YK1FRoKiPJq4PHt6tp/ulnuuyRBvazd0hG7pWbE99zvwSznI" crossorigin="anonymous"> <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha256-k2WSCIexGzOj3Euiig+TlR8gA0EmPjuc79OEeY5L45g=" crossorigin="anonymous"></script> Modern browsers will only execute the stylesheet or JavaScript if the SRI hash matches the content served. You can generate hashes using www.srihash.org Items in "extra_js_urls" can specify "module": true if they reference JavaScript that uses JavaScript modules . This configuration: { "extra_js_urls": [ { "url": "https://exa… | ["Custom pages and templates"] | [{"href": "https://www.srihash.org/", "label": "www.srihash.org"}, {"href": "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules", "label": "JavaScript modules"}] |
| custom_templates:customization-custom-templates | custom_templates | customization-custom-templates | Custom templates | By default, Datasette uses default templates that ship with the package. You can over-ride these templates by specifying a custom --template-dir like this: datasette mydb.db --template-dir=mytemplates/ Datasette will now first look for templates in that directory, and fall back on the defaults if no matches are found. It is also possible to over-ride templates on a per-database, per-row or per- table basis. The lookup rules Datasette uses are as follows: Index page (/): index.html Database page (/mydatabase): database-mydatabase.html database.html Custom query page (/mydatabase?sql=...): query-mydatabase.html query.html Canned query page (/mydatabase/canned-query): query-mydatabase-canned-query.html query-mydatabase.html query.html Table page (/mydatabase/mytable): table-mydatabase-mytable.html table.html Row page (/mydatabase/mytable/id): row-mydatabase-mytable.html row.html Table of rows and columns include on table page: _table-table-mydatabase-mytable.html _table-mydatabase-mytable.html _table.html Table of rows and columns include on row page: _table-row-mydatabase-mytable.html _table-mydatabase-mytable.html _table.html If a table name has spaces or other unexpected characters in it, the template filename will follow the same rules as our custom <body> CSS classes - for example, a table called "Food Trucks" will attempt to load the following templates: table-mydatabase-Food-Trucks-399138.html table.html You can find out which templates were considered for a specific page by viewing source on that page and looking for an HTML comment at the bottom. The comment will look something like this: <!-- Templates considered: *query-mydb-tz.html, query-mydb.html, query.html… | ["Custom pages and templates"] | [{"href": "https://github.com/simonw/datasette/blob/main/datasette/templates/_table.html", "label": "can be seen here"}] |
| custom_templates:id1 | custom_templates | id1 | Custom pages | You can add templated pages to your Datasette instance by creating HTML files in a pages directory within your templates directory. For example, to add a custom page that is served at http://localhost/about you would create a file in templates/pages/about.html , then start Datasette like this: $ datasette mydb.db --template-dir=templates/ You can nest directories within pages to create a nested structure. To create a http://localhost:8001/about/map page you would create templates/pages/about/map.html . | ["Custom pages and templates"] | [] |
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CREATE TABLE [sections] ( [id] TEXT PRIMARY KEY, [page] TEXT, [ref] TEXT, [title] TEXT, [content] TEXT, [breadcrumbs] TEXT, [references] TEXT );