move more examples to sqlpage.link

Author: lovasoa

CHANGELOG.md

@@ -32,9 +32,10 @@
       select 'list' as component;
       select
         product_name as title,
-        sqlpage.link('product.sql', json_object('product_id', product_id)) as link
+        sqlpage.link('product.sql', json_object('product', product_name)) as link
       from products;
       ```
+    - Before, you would usually build the link manually with `CONCAT('/product.sql?product=', product_name)`, which would fail if the product name contained special characters like '&'. The new `sqlpage.link` function takes care of encoding the parameters correctly.
 
 ## 0.24.0 (2024-06-23)
  - in the form component, searchable `select` fields now support more than 50 options. They used to display only the first 50 options. 

examples/CRUD - Authentication/README.md

@@ -21,7 +21,7 @@ SET $_username = (
 ```sql
 SELECT
     'redirect' AS component,
-    '/login.sql?path=' || $_curpath AS link
+    sqlpage.link('/login.sql', json_object('path', $_curpath)) AS link
 WHERE $_username IS NULL AND $_session_required;
 ```
 4. The login page renders the login form, accepts the user credentials, and redirects to create_session.sql, passing the login credentials as POST variables.

examples/CRUD - Authentication/www/create_session.sql

@@ -2,7 +2,7 @@
 
 SELECT
     'authentication' AS component,
-    'login.sql?' || ifnull('path=' || $path, '') || '&error=1' AS link,
+    'login.sql?' || ifnull('path=' || sqlpage.url_encode($path), '') || '&error=1' AS link,
     :password AS password,
     (SELECT password_hash
      FROM accounts