restaurantPage | Restaurant Webpage using Javascript and Webpack Management | Build Tool library
kandi X-RAY | restaurantPage Summary
kandi X-RAY | restaurantPage Summary
A Restaurant Webpage using Javascript and Webpack Management.
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QUESTION
I created my app with create-react-app
.
In my website, I used lazy loading for page components :
...ANSWER
Answered 2020-Jul-21 at 14:57So I found the solution. But it was tricky and linked to my configuration.
So what happened is that I'm using a custom webpack config (with craco), and I addded a plugin, PreloadWebpackPlugin
to add preload to fonts, images.
By default, this plugin also add "preload" to chunks. But webpack is smart, it doesn't add the not needed chunk files in the first load.
But what was happening is that I had the hot module reload file was listing all chunk files (so it can restart when there is a change), and this config was "preloading" them all.
So the only thing I had to do is :
QUESTION
According to the user tracking analysis, I have been created a tracking method to save TrackUserRest record and update the Restaurant.view_count.
The version 1 pop up an error when imported into Restaurant models. The version 2 save record and updates the view_count amount successfully, but I am not sure that it is the right way?
For the further enhancement study, can anyone get me some examples to update the wagtail page in the right way?
sorry for my English.
...ANSWER
Answered 2020-May-12 at 10:11Version 1 is failing because you have a circular import - TrackUserRest
depends on RestaurantPage
being defined, but RestaurantPage
depends on TrackUserRest
being defined, so there's no way for Python to decide which one comes first.
The simplest way to fix this is to use a string version of the model name when defining the ForeignKey, so that there's no need to import RestaurantPage:
QUESTION
I have been followed accordbox to create some models. For user activity analysis, I would like to save the user_id, restaurant_id, and time on visited RestaurantPage. The logic is when get_context function in the Restaurant Model, it will use tracking function to save record in TrackUserRestaurant model.
The print function is used to check the request.user.id and restaurant.id.
But I can't get any new record on the TrackUserRestaurant model.
Did I misunderstand something?
I am new to Django and wagtail.
...ANSWER
Answered 2020-May-09 at 09:46- The names used in your
tracking
method (TrackUserRest
,rest
) do not match your class definition (TrackUserRestaurant
,restaurant_id
) - The line
track = TrackUserRest
does not create aTrackUserRest
object - it needs to betrack = TrackUserRest()
. As a result of this, the following lines are setting attributes on theTrackUserRest
class, not aTrackUserRest
object. - With this fixed,
track.save(self)
should becometrack.save()
.
QUESTION
I am using firebase along with React navigation for this app.
For a component of mine, I am able to retrieve data from my firebase realtime database to populate an array of components. This is done in my componentDidMount() function.
If, however, I navigate to another page, and then navigate back (the goBack() function is not manually called), no items are rendered. By using console logs I was able to figure out the following:
-componentDidMount() IS being called again when I revisit the page.
-I am able to enter into the function specified under:
...ANSWER
Answered 2018-Aug-29 at 02:27The problem was that I did not call off() on the firebase ref after calling on()!
The solution is to call Ref.off() in componentDidUnmount or simply use a Ref.once() function rather than Ref.on()
QUESTION
I would like to know what kind of solutions I have to solve the following issue:
I don't use any state mangement library. I "only use" React.
The global application state is stored in the component . It contains an array of restaurant objects.
The component RestaurantPage
is used to display the details of a restaurant and allows to create a new review.
At this point I'm stuck because I need to update a specific restaurant
object stored in the state of in order to add this submitted review.
I used to update the state via functions passed as props to the children components but in this case I can't because MyFoodApp
is not a parent of RestaurantPage
.
Do I have to set up Redux
to fix this issue or is there any workarounds ?
ANSWER
Answered 2018-Apr-20 at 12:44There are a couple of solution to your problem without actually using a state management library,
First: Lift the state up,
This is the most correct solution since your components and routes are not highly nested and the data needs to handled by the components which are siblings of each other,
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