The concept of using the `map` method within a

Hi there, I could use some assistance with a tricky issue I'm facing.

My current task involves rendering a cart object that includes product names, prices, and quantities.

Each product can have its own set of product options stored as an array of objects.

The challenge lies in properly rendering the product options along with their respective option groups.

For example, a meal may have toppings and beverages as option groups, with the individual toppings or beverages serving as the actual options.

If you're curious to see how this should look, check out this image output from the render:

cart render image output

Here's the code snippet responsible for rendering the product options:

{
  !!item["productOptions"].length && (
    <>
      <List sx={{ mt: "-16px", pt: 0, pl: 1 }}>
        {Object.keys(cartOptgroups).map((keyId, i) => (
          <>
            <ListItem sx={{ pb: "2px", pt: "2px" }}>
              <Grid container>
                <Grid item xs={2}>
                  <div></div>
                </Grid>
                <Grid item xs={8}>
                  <Typography sx={{ pr: "8px" }} variant="body2">
                    {cartOptgroups[keyId] + ":"}
                  </Typography>
                  {item["productOptions"].map((option, index) => (
                    <>
                      {option.groupId == keyId && (
                        <>
                          <Chip
                            sx={{ mt: "4px", mr: "4px" }}
                            variant="filled"
                            size="small"
                            color="default"
                            label={option.optionName}
                          />
                        </>
                      )}
                    </>
                  ))}
                </Grid>
                <Grid item xs={2}>
                  <div></div>
                </Grid>
              </Grid>
            </ListItem>
          </>
        ))}
      </List>
    </>
  );
}

As the cart is rendered, I create an object containing all possible option groups like this:

{1: Accompaniment, 2: Extras}

I also have an array of option objects structured as follows:

[{
    groupId: groupId,
    groupName: groupName,
    optionId: optionId,
    optionName: optionName,
    optionPrice: optionPrice,
}]

My approach involves iterating through the group object first to display group names. Then, I cycle through the options array to determine which options correspond to each group based on their IDs.

However, this method presents a dilemma where either the group name is displayed without matching options or duplicate group names are shown if options are processed prior to groups.

To resolve this, I believe incorporating additional data during group object creation or utilizing variables while rendering could be plausible solutions. Any guidance on how to proceed would be highly appreciated!

Answer №1

After some thought, I decided to revamp how the product options get included in the cart:

As I toggle checkboxes on and off, my child component will continue to pass the same option object as previously shown:

const option = {
                groupId: id,
                groupName: name,
                optionId: optId,
                optionName: optName,
                optionPrice: price,
            };

The parent function then takes this option object and structures it before adding it to the cart item from the child component:

const obj = {
                groupId: option.groupId,
                groupName: option.groupName,
                groupOptions: [{
                                optionId: option.optionId,
                                optionName: option.optionName,
                                optionPrice: option.optionPrice
                            }]
            };

Prior to this step, it verifies if the group already exists; if so, it simply appends the option object to groupOptions:

const currentOpt = {
                optionId: option.optionId,
                optionName: option.optionName,
                optionPrice: option.optionPrice
            };

Finally, I render everything as a nested array.prototype.map and the outcome is satisfactory.

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