This is clean in the sense that it prints a message if the server
rejects the submission, but before that it will even do the nice thing
of checking the number on the client side, (and reporting this with
the HTML5 validity API).
+const MAX_PROMPT_ITEMS = 20;
+
function undisplay(element) {
element.style.display="none";
}
function undisplay(element) {
element.style.display="none";
}
const category_input = this.category.current;
const category = category_input.value;
const category_input = this.category.current;
const category = category_input.value;
- if (/[0-9]/.test(category))
- category_input.setCustomValidity("");
+ const match = category.match(/[0-9]+/);
+ if (match) {
+ const num_items = parseInt(match[0], 10);
+ if (num_items <= MAX_PROMPT_ITEMS)
+ category_input.setCustomValidity("");
+ }
+ async handle_submit(event) {
const form = event.currentTarget;
const category_input = this.category.current;
const category = category_input.value;
const form = event.currentTarget;
const category_input = this.category.current;
const category = category_input.value;
- fetch_post_json("prompts", {
- items: parseInt(match[0], 10),
+ const num_items = parseInt(match[0], 10);
+
+ if (num_items > MAX_PROMPT_ITEMS) {
+ category_input.setCustomValidity(`Maximum number of items is ${MAX_PROMPT_ITEMS}`);
+ form.reportValidity();
+ return;
+ }
+
+ const response = await fetch_post_json("prompts", {
+ items: num_items,
+ if (response.status === 200) {
+ const result = await response.json();
+ console.log(result);
+ if (! result.valid) {
+ add_message("danger", result.message);
+ return;
+ }
+ } else {
+ add_message("danger", "An error occurred submitting your category");
+ }
+