attr | provide external access to a datastructure through a typed | Runtime Evironment library

 by   skade Rust Version: Current License: MIT

kandi X-RAY | attr Summary

kandi X-RAY | attr Summary

attr is a Rust library typically used in Server, Runtime Evironment applications. attr has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

attr is a library to provide external access to a datastructure through a typed path object, using all type information known about the data structure at hand. This allows expressing queries on data structures not currently at hand without retrieving a handle on the data structure itself. attr decouples access from data, by giving you ways to describe paths through data without exporting the exact structure of the data. For that, it describes traversible paths that work on given types and return specific values. attr makes creation of these paths painless and supported by the given type information. The library is "pay what you use", simple pointer dereferencing paths cost as much as hand-written, direct code. As an example, an interface to the serde_json library is provided.
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            kandi-support Support

              attr has a low active ecosystem.
              It has 17 star(s) with 0 fork(s). There are 1 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              attr has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of attr is current.

            kandi-Quality Quality

              attr has no bugs reported.

            kandi-Security Security

              attr has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              attr is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              attr releases are not available. You will need to build from source code and install.
              Installation instructions are not available. Examples and code snippets are available.

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            attr Key Features

            No Key Features are available at this moment for attr.

            attr Examples and Code Snippets

            No Code Snippets are available at this moment for attr.

            Community Discussions

            QUESTION

            Scrapy form not submitting properly
            Asked 2021-Jun-16 at 01:24

            I want to submit the form with the 5 data that's on the below. By submitting the form, I can get the redirection URL. I don't know where is the issue. Can anyone help me to submit the form with required info. to get the next page URL.

            Code for your reference:

            ...

            ANSWER

            Answered 2021-Jun-16 at 01:24

            Okay, this should do it.

            Source https://stackoverflow.com/questions/67992556

            QUESTION

            exception: "Illuminate\\Database\\QueryException" , Column not found: 1054 Champ using laravel 8
            Asked 2021-Jun-15 at 22:38

            I want to Edit data, so for that, I should display it in a form. In my table in the database, I have a primary key named id_casting

            So I have he following code :

            My script :

            ...

            ANSWER

            Answered 2021-Jun-15 at 22:38

            By default laravel thinks that id is the primary key in your table. To fix this you would have to a primary key variable in your model

            Source https://stackoverflow.com/questions/67994004

            QUESTION

            How to show and hide Div by mutiple Select form after submission
            Asked 2021-Jun-15 at 19:59

            I have two select form with submit button, I need to get the result of selected value for example

            first select form having colours as an option and second contains another things.

            and i have some items as div....red flower , red fish.

            if i select red from first form its shows red value div and in second form if i select flower it should display red flower only but it's shows everything under the value red. And these all thing must work only when i submit the search button. I have attached jsfiddle below. Code:

            ...

            ANSWER

            Answered 2021-Jun-15 at 19:59

            This is not so simple as I initially thought

            Source https://stackoverflow.com/questions/67992054

            QUESTION

            Do Vue.js render functions allow return of an array of VNodes?
            Asked 2021-Jun-15 at 18:46

            I am working on extending a Vue.js frontend application. I am currently inspecting a render function within a functional component. After looking over the docs, I had the current understanding that the render function within the functional component will return a single VNode created with CreateElement aka h. My confusion came when I saw a VNode being returned as an element in an array. I could not find any reference to this syntax in the docs. Does anyone have any insight?

            ...

            ANSWER

            Answered 2021-Jun-15 at 15:37

            It seems this was implemented in:

            https://github.com/vuejs/vue/commit/c7c13c2a156269d29fd9c9f8f6a3e53a2f2cac3d

            This was a result of an issue raised in 2018 (https://github.com/vuejs/vue/issues/8056) , because this.$scopedSlots.default() returned both a VNode or an array of VNodes depending on the content.

            The main argument was that this is inconsistent with how regular slots behave in render functions, and means any render function component rendering scoped slots as children needs to type check the result of invoking the slot to decide if it needs to be wrapped in an array

            So Evan comments on the issue thread here, explaining that this.$scopedSlots.default would always return Arrays beginning v2.6 to allow for consistency, but to avoid breaking changes for how $scopedSlots was being used, the update would also allow return of an Array of a single VNode from render functions as well.

            Source https://stackoverflow.com/questions/67987315

            QUESTION

            How can I plot two column combinations from a df or tibble as a scatterplot in R using purrr (pipes, maps, imaps)
            Asked 2021-Jun-15 at 17:51

            I am trying to create scatter plots of all the combinations for the columns: insulin, sspg, glucose (mclust, diabetes dataset, in R) with class as the colo(u)r. By that I mean insulin with sspg, insulin with glucose and sspg with glucose.

            And I would like to do that with tidyverse, purrr, mappings and pipe operations. I can't quite get it to work, since I'm relatively new to R and functional programming.

            When I load the data I've got the columns: class, glucose, insulin and sspg. I also used pivot_longer to get the columns: attr and value but I was not able to plot it and don't know how to create the combinations.

            I assume that there will be an iwalk() or map2() function at the end and that I might have to use group_by() and nest() and maybe combn(., m=2) for the combinations or something like that. But it will probably have some way simpler solution that I can not see myself.

            My attempts have amounted to this:

            ...

            ANSWER

            Answered 2021-Jun-15 at 17:34
            library(mclust)
            #> Package 'mclust' version 5.4.7
            #> Type 'citation("mclust")' for citing this R package in publications.
            library(tidyverse)
            data("diabetes")
            

            Source https://stackoverflow.com/questions/67990027

            QUESTION

            collapsingtoolbarlayout recyclerview working separately
            Asked 2021-Jun-15 at 16:32

            Collapsing toolbar layout and the recycler view should work together while swiping but working separately. suggest to me what to do! given below are my code and resulting gif part of my project.

            the toolbar layout is not showing fully if I swipe the screen from bottom to top. the toolbar layout is closed and only return if I swipe to toolbar layout separately.

            i want to toolbar layout to be in the same manner when i swipe the screen up and down.

            Code of my layout

            ...

            ANSWER

            Answered 2021-Jun-15 at 16:32

            QUESTION

            disable in Angular Material custom field component not working
            Asked 2021-Jun-15 at 15:14

            I have a custom slide toggle component created using Angular Material. I followed this guide: https://material.angular.io/guide/creating-a-custom-form-field-control

            Everything seems to be working fine except when I dynamically disable the custom component like this:

            ...

            ANSWER

            Answered 2021-Jun-11 at 19:49

            You need to add a formGroup binding to your custom component,

            Source https://stackoverflow.com/questions/67942009

            QUESTION

            JSF - Validation error in 1 component, leads all others in the form to fail
            Asked 2021-Jun-15 at 14:11

            Hey to all in the forum

            I use JSF Mojarra implementation, version JSF 2.2

            I need desperately a help on this.

            1. I have a snippet of my page.
            2. I have a custom component "example_result.xhtml" used in the page.
            3. I have my BackingBean.java Be aware please that this code is not the real code I made. If you run it, it will be very ugly maybe because I deleted all the css classes and I kept only the hot stuff I need to show you my problem.

            Everything is inside 1 form.

            The 5 "h:selectManyCheckbox" (in my code I have 8 or 9)

            In the form I have 5 "h:selectManyCheckbox" which are using values in the "value" attribute for different cases (javaFrameworks2Values, javaFrameworks3Values,...), and the "f:selectItems" use arrays of "SelectItem" (javaFrameworksSelectItems2, javaFrameworksSelectItems3...) created for these different cases, just to make some examples for me to understand how all the selectOne and selectMany components work. The ideas for this, about different cases were taken from these links: "https://stackoverflow.com/tags/selectonemenu/info" and "https://mkyong.com/jsf2/jsf-2-checkboxes-example".

            After I have 2 commandButtons

            1 for submit, and 1 for reset the values.

            Display the values

            After I display the results of the values of the "h:selectManyCheckbox" via the "example_result.xhtml".

            You can see the 4th "h:selectManyCheckbox" that is the only one different, because it has the attribute "required" with the attribute "requiredMessage". With it there is a "h:message" to display the validation error.

            In the BackingBean (which is Spring Bean, but it works perfectly good - sorry I don't want ejbs 3.x), I have initialized:

            1. The values of the SelectItems and
            2. The values of the "value" attribute, where the values of the "h:selectManyCheckbox" will be stored to be displayed later. [The code is completely castrated, to make it readable snippet].

            When the page is rendered, I select checkBoxes (e.g. the 2 last, because the 2 first are initials) from all the "h:selectManyCheckbox". When I say that select from all, I mean it. And from the 4th with the "required" attribute. I try in the buttons (see in the code) the "Effort 1", or "Effort 2", or "Effort 3" (in the "f:ajax" in the buttons) and the result outputs in the last part are displayed and updated like a candy. Without any problem. To achive this with the composite component I googled and tried a lot. But I made it.

            Then it comes the time to try the 4th to see the validation error of the "required" attribute.

            I select again from all as before, but not from all. NOT from the 4th "h:selectManyCheckbox" this time. I select nothing from the 4th "h:selectManyCheckbox" to ckeck the validator error message ("requiredMessage"). The result is: It displays the message of error (GOOD until now), BUT this time it does not update anything from the others "h:selectManyCheckbox" to the output results at the end, and it does not reset the values as well as it was doing before (when I selected from all and from the 4th as well).

            I understand that it says: as long as in the form the 4th failed with validation error, all the other "h:selectManyCheckbox" will not update the output results (something like wanting to fail all the others too).

            But what really happes here?

            1. It does not give the values to the "h:selectManyCheckbox", to be updated to the output?
            2. It gives the vales to the "h:selectManyCheckbox" normally, BUT it just not updates the output?

            The other efforts in the "f:ajax" in the buttons, are just efforts maybe to solve the problem but in these cases they don't even display the error message in the 4th case and of cource they don't update the other output results as well (again). But no message error as well.

            I don't know if the problem is clear to you. I can explain in the discussion better so I can clarify the situation better. [To be honnet it took me 1 and half hour to write all this thing]

            Thanks a lot in advance

            ========== Snippet from my page ==========

            ...

            ANSWER

            Answered 2021-Jun-15 at 14:11

            After a lot of discussing with the only person who wanted to help to my issue here (and I thank him @WoAiNii for this a lot), I decided to post my solution:

            I will make 5 different forms with 5 set of buttons (submit/reset), to make escalate this problem, for 5 so much related components in the form.

            But my question is open: Why this is happening, what rule in JSF in this case is taking place and makes this situation. Anyone, comes with an explanation:

            • Thomas: this is a rule in JSF, or
            • is a JSF bug, or
            • this happens in these cases, or... whatever...,

            I will be glad to read it here so I will learn better, and others to will learn from these ideas of yours. Thanks a lot

            Source https://stackoverflow.com/questions/67750994

            QUESTION

            How to make map draggable in D3v6
            Asked 2021-Jun-15 at 12:55

            I have a Drilldown world map(continent map + country map) where the second map(the country map) is zoomed-in onload by using fitExtent function. Since it is zoomed-in, I wanted to implement a draggable feature where I can drag the map and see other part of the map.

            ...

            ANSWER

            Answered 2021-Jun-15 at 12:55
            var svg = d3.select("#mapDiv")
                .append("svg")
                .attr("width", width)
                .attr("height", height)
                .style("background-color", "white")
                .style("border", "solid 1px black")
                .call(d3.zoom()
                    .on("zoom", function (event) {
                        svg.attr("transform", event.transform)
                    })
                    .scaleExtent([1, 1])
                )
                .append("g");
            

            Source https://stackoverflow.com/questions/67938213

            QUESTION

            Route exists but doesn't work and deleted route still works Laravel
            Asked 2021-Jun-15 at 11:40

            well i was working on my project and suddenly when i created a new route i get this problem where the route exists but it shows 404 !! so i tried to delete a existing route that is working but when i delete that route that route still works !! I had this problem previously but i just deleted that route and made another route again and it was working fine but this time it does not work !!

            Here is some of my code ->

            ...

            ANSWER

            Answered 2021-Jun-15 at 10:55

            Please run the command line:

            Source https://stackoverflow.com/questions/67984815

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install attr

            You can download it from GitHub.
            Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.

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