alloy | web API for CSS preprocessors | Style Language library

try this, src- https://stackoverflow.com/a/59183862/12732187

The problem is in the __iter__ method of your Basket class. I believe you iterate over the basket object in the template so it is used in the request (because there is no loop in the view).

Now what is the problem in the method? Well you have this particular line basket = self.basket.copy(), what it does is, that it makes a shallow copy of the dictionary, i.e. the internal objects referred to are the same, but you have a nested dictionary, meaning when you change the nested dictionary you actually change the same dictionary in your basket! You can use copy.deepcopy [Python docs] to make a deep copy of the dictionary:

Sorry, I missed the fact that you were already returning your result as key word arguments (you were just doing it differently from me) so I'm going to edit the answer (deleted most of the previous answer and responding based on the information you have provided in a comment.

Based on your current design

1. The first time you load your page, the result div will not show up

2. Then you execute a search and the result div will show up. It may or may not contain results

3. The result div will now always be visible unless you reload the page. If you do a new search, the contents of the result div will be cleared

If you're okay with the above behavior, then you don't even need the JS script. Just modify your code to

I haven't looked at the grammar, but this is covered on the Alloy website under Macros

Untyped macros can be defined at the top level of a file. All 3 syntax are equivalent. (If parameterless, then [ ] can be omitted.)

Use a textbox as a "label". Set it Locked Yes and TabStop No. Expression in ControlSource to concatenate text and field.

="Common " & [Metal Name] & " Alloys in Use"

Or have label controls with caption text on each side of textbox.

However, if you want emphasis such as bold or italic, that requires HTML code tags. Set textbox TextFormat property to Rich Text. Then expression in ControlSource like:

="Common """ & [Metal Name] & """ Alloys in Use"

Make sure textbox has a name different from field or will get circular reference error.

Your heuristics is fine, use

Cause

You are using the JsonProperty attribute from the Netwonsoft.Json package, but the built-in .NET Core/5 deserializer from the System.Text.Json namespace.

How do I know that? Newtonsoft.Json does not have a JsonSerializer.Deserialize overload which takes a single string, and .NET does not contain a JsonPropertyAttribute.

Those two are not compatible. The .NET deserializer ignores your [JsonProperty("Products")] attribute, does not find a propery named ProductsProducts in your JSON and, thus, yields null for that property.

Fix

To use the deserializer from the Newtonsoft.Json package instead, replace

my_rel not in iden says that my_rel is not a subset of iden. Since N0 -> N1 in my_rel and N0 -> N1 not in iden, my_rel isn't a subset and the fact still holds.

If you are dead set on regex and the input is well-formed (read as doesn't contain an escaped single quote) this should suffice: