courses | Solutions for different courses | Learning library

 by   vpetrigo C++ Version: Current License: No License

kandi X-RAY | courses Summary

kandi X-RAY | courses Summary

courses is a C++ library typically used in Tutorial, Learning, Example Codes applications. courses has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

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            kandi-support Support

              courses has a low active ecosystem.
              It has 10 star(s) with 4 fork(s). There are 2 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              courses has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of courses is current.

            kandi-Quality Quality

              courses has no bugs reported.

            kandi-Security Security

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

            kandi-License License

              courses does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

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

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            courses Key Features

            No Key Features are available at this moment for courses.

            courses Examples and Code Snippets

            No Code Snippets are available at this moment for courses.

            Community Discussions

            QUESTION

            how to use joins only if condition is met
            Asked 2021-Jun-15 at 15:12

            I would like to make a joins query but only if a condition is met.

            In previous version of rails when find was used, I would be able to use:

            ...

            ANSWER

            Answered 2021-Jun-15 at 14:09

            you can create a scope that will check the condition before joins

            Source https://stackoverflow.com/questions/67986844

            QUESTION

            How to redirect on specific URL to another URL in NuxtJs app
            Asked 2021-Jun-15 at 08:19

            For example, when the entered url is

            http://localhost:3000/course-details

            it should always redirect to http://localhost:3000/courses

            I remember there was a way to do that but I forgot it.

            ...

            ANSWER

            Answered 2021-Jun-15 at 08:09

            you can handle this in the middleware of vue-page-component

            pages/course-details.vue

            Source https://stackoverflow.com/questions/67981962

            QUESTION

            Is there a way to get a nested Eloquent model based on ids from another table?
            Asked 2021-Jun-14 at 15:14

            Hey there stackoverflow

            I am currently building a course application as part of my laravel project.

            My problem lies in how the eloquent handle model relations, i'm still kinda new to eloquent, so hopefully you can answer my question.

            The structure

            The Course has many episodes and each episode has many sections.

            Which means I have 3 tables in the DB. Courses -> course_episodes -> course_episode_sections

            ID table is where i connect courses with users - course_users.

            Right now i can create courses and and put in all the data correctly.

            The Problem

            I need to retrieve all the courses and its nested children that the user has bought, which is connected in the course_users table with columns course_id and user_id

            Course structure

            Same stucture in DB

            ...

            ANSWER

            Answered 2021-Jun-14 at 15:14

            According to your explanation, course_users table holds many-to-many relationship between Course and User model. In case of a many-to-many relationship, you actually don't need a CourseUser model. This kind of table which holds many-to-many relationship is called pivot table. Read more from the Official Documentation

            I am defining only the relationships with your Course, User, CourseEpisode, CourseEpisodeSection models.

            Course.php

            Source https://stackoverflow.com/questions/65687713

            QUESTION

            How to refresh GridLayout in Kivy with kv file
            Asked 2021-Jun-13 at 06:24

            I need help.

            I created a small mobile application with Kivy.

            I have two screens: ScreenList and ScreenDetail.

            However the screen(ScreenList) containing GridLayout does not refresh

            ScreenList: contains a list of items

            ScreenDetail: Contains the details of a single item.

            How the app works:

            1. When I click on the first item on button 1
            2. I go to the details of the item.
            3. I modify the second field. I replace the text: Firt element for First and update data
            4. After recording, I redirect the application to the screens which contain (ScreenList) the list of elements.
            5. But the list of elements remains unchanged then the data has been modified in the database. 6.And when I return to the screen (ScreenDetail) which contains the details, there I see that the data is updated.

            How can I refresh the item list in ScreenList?

            Here are the pictures as an example

            List before update

            before update

            after update

            List after update

            Here is the python code:

            ...

            ANSWER

            Answered 2021-Jun-13 at 06:24
            Few notes to take, in general, when working with Kivy
            • When you're trying to share data in between screens, it's often useful to use app methods instead of specific methods of screens.

            • And when you need to create lots of buttons, maybe inside a loop, and bind methods on its events( on_press, on_release), it's often bad to create button instances on the fly and bind methods on its events because you'll need to do extra work to make sure that those bound methods are called with right parameters when events are fired. Rather create a custom class template and use that instead.

            Working solution for your problem (only showing sections that has been added/updated

            Created custom GridLayout:

            Source https://stackoverflow.com/questions/67954613

            QUESTION

            Terraform - how to access the tuple and extract the invoke_arn and function_name
            Asked 2021-Jun-12 at 22:21

            I have written terraform code which:

            1. Creates IAM Role
            2. Creates lambda functions and attaches the above created role
            3. Dynamo DB table creation
            4. Creates API gateway, resources and adds POST method with lambda integration.

            The first 3 steps works well. However while creating and configuring the API gateway, I am encountering below error in resource aws_api_gateway_integration & aws_lambda_permission, where I am trying to attach the lambda function "save_course" to the POST method under "courses" resource

            ...

            ANSWER

            Answered 2021-Jun-12 at 22:21

            Change your locals from

            Source https://stackoverflow.com/questions/67953162

            QUESTION

            Filter multi-dimensional array by specific key and create sub array PHP?
            Asked 2021-Jun-12 at 21:32

            I have below array I want to group by course id and course type (fulltime and parttime)

            ...

            ANSWER

            Answered 2021-Jun-12 at 21:32

            This will give you the multi-dimensional array you want. If you don't want to lose those unset variables comment out that line. It's just there because you didn't record them in your sample.

            Source https://stackoverflow.com/questions/67952584

            QUESTION

            differences in bitmap or rasterized font bitmaps and text display on 3.5" TFT LCD
            Asked 2021-Jun-12 at 16:19

            I am using a 3.5: TFT LCD display with an Arduino Uno and the library from the manufacturer, the KeDei TFT library. The library came with a bitmap font table that is huge for the small amount of memory of an Arduino Uno so I've been looking for alternatives.

            What I am running into is that there doesn't seem to be a standard representation and some of the bitmap font tables I've found work fine and others display as strange doodles and marks or they display upside down or they display with letters flipped. After writing a simple application to display some of the characters, I finally realized that different bitmaps use different character orientations.

            My question

            What are the rules or standards or expected representations for the bit data for bitmap fonts? Why do there seem to be several different text character orientations used with bitmap fonts?

            Thoughts about the question

            Are these due to different target devices such as a Windows display driver or a Linux display driver versus a bare metal Arduino TFT LCD display driver?

            What is the criteria used to determine a particular bitmap font representation as a series of unsigned char values? Are different types of raster devices such as a TFT LCD display and its controller have a different sequence of bits when drawing on the display surface by setting pixel colors?

            What other possible bitmap font representations requiring a transformation which my version of the library currently doesn't offer, are there?

            Is there some method other than the approach I'm using to determine what transformation is needed? I currently plug the bitmap font table into a test program and print out a set of characters to see how it looks and then fine tune the transformation by testing with the Arduino and the TFT LCD screen.

            My experience thus far

            The KeDei TFT library came with an a bitmap font table that was defined as

            ...

            ANSWER

            Answered 2021-Jun-12 at 16:19

            Raster or bitmap fonts are represented in a number of different ways and there are bitmap font file standards that have been developed for both Linux and Windows. However raw data representation of bitmap fonts in programming language source code seems to vary depending on:

            • the memory architecture of the target computer,
            • the architecture and communication pathways to the display controller,
            • character glyph height and width in pixels and
            • the amount of memory for bitmap storage and what measures are taken to make that as small as possible.

            A brief overview of bitmap fonts

            A generic bitmap is a block of data in which individual bits are used to indicate a state of either on or off. One use of a bitmap is to store image data. Character glyphs can be created and stored as a collection of images, one for each character in the character set, so using a bitmap to encode and store each character image is a natural fit.

            Bitmap fonts are bitmaps used to indicate how to display or print characters by turning on or off pixels or printing or not printing dots on a page. See Wikipedia Bitmap fonts

            A bitmap font is one that stores each glyph as an array of pixels (that is, a bitmap). It is less commonly known as a raster font or a pixel font. Bitmap fonts are simply collections of raster images of glyphs. For each variant of the font, there is a complete set of glyph images, with each set containing an image for each character. For example, if a font has three sizes, and any combination of bold and italic, then there must be 12 complete sets of images.

            A brief history of using bitmap fonts

            The earliest user interface terminals such as teletype terminals used dot matrix printer mechanisms to print on rolls of paper. With the development of Cathode Ray Tube terminals bitmap fonts were readily transferable to that technology as dots of luminescence turned on and off by a scanning electron gun.

            Earliest bitmap fonts were of a fixed height and width with the bitmap acting as a kind of stamp or pattern to print characters on the output medium, paper or display tube, with a fixed line height and a fixed line width such as the 80 columns and 24 lines of the DEC VT-100 terminal.

            With increasing processing power, a more sophisticated typographical approach became available with vector fonts used to improve displayed text quality and provide improved scaling while also reducing memory required to describe the character glyphs.

            In addition, while a matrix of dots or pixels worked fairly well for languages such as English, written languages with complex glyph forms were poorly served by bitmap fonts.

            Representation of bitmap fonts in source code

            There are a number of bitmap font file formats which provide a way to represent a bitmap font in a device independent description. For an example see Wikipedia topic - Glyph Bitmap Distribution Format

            The Glyph Bitmap Distribution Format (BDF) by Adobe is a file format for storing bitmap fonts. The content takes the form of a text file intended to be human- and computer-readable. BDF is typically used in Unix X Window environments. It has largely been replaced by the PCF font format which is somewhat more efficient, and by scalable fonts such as OpenType and TrueType fonts.

            Other bitmap standards such as XBM, Wikipedia topic - X BitMap, or XPM, Wikipedia topic - X PixMap, are source code components that describe bitmaps however many of these are not meant for bitmap fonts specifically but rather other graphical images such as icons, cursors, etc.

            As bitmap fonts are an older format many times bitmap fonts are wrapped within another font standard such as TrueType in order to be compatible with the standard font subsystems of modern operating systems such as Linux and Windows.

            However embedded systems that are running on the bare metal or using an RTOS will normally need the raw bitmap character image data in the form similar to the XBM format. See Encyclopedia of Graphics File Formats which has this example:

            Following is an example of a 16x16 bitmap stored using both its X10 and X11 variations. Note that each array contains exactly the same data, but is stored using different data word types:

            Source https://stackoverflow.com/questions/67465098

            QUESTION

            trying to send data on server, but getting this Error in browsers DevTools console: Network Error at createError and at XMLHttpRequest.handleError
            Asked 2021-Jun-12 at 05:57

            I am using react js for web front end and php for back end, on button click on web page i am trying to send data to server but getting this Error: Network Error at createError (createError.js:16) at XMLHttpRequest.handleError (xhr.js:84)

            I have tried two different ways for sending data to server but with each i got the same error. can anyone help me out?

            React Code:

            ...

            ANSWER

            Answered 2021-Jun-12 at 05:57

            If you are using hostinger(000webhost) and you are making a website using react and PHP, you can use axios to retrieve data from server, you can't use axios to make a post request. If you will, you will he an http protocol error. So instead to axios use fetch(I repeat in case of 000webhost server). I have done the same thing with fetch like this

            Source https://stackoverflow.com/questions/67754543

            QUESTION

            Group dataframe rows by creating a unique ID column based on the amount of time passed between entries and variable values
            Asked 2021-Jun-10 at 16:18

            I'm trying to group the rows of my dataframe into "courses" when the same variables appear at regular date intervals. When there is a gap in time frequency or when one of variables change I would like to give it a new course ID.

            To give an example, my data looks something like this:

            ...

            ANSWER

            Answered 2021-Jun-10 at 16:18

            Here's a dplyr approach that calculates the gap and rolling avg gap within each Name/Item group, then flags large gaps, and assigns a new group for each large gap or change in Name or Item.

            Source https://stackoverflow.com/questions/67922878

            QUESTION

            why react javascript const object's members can be modified
            Asked 2021-Jun-09 at 21:47

            As here shows

            ...

            ANSWER

            Answered 2021-Jun-09 at 21:28

            Const will define a object no reassignable but we can edit properties in the object. Using const won't change the structure of the object.

            Source https://stackoverflow.com/questions/67911880

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            Install courses

            You can download it from GitHub.

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            CLONE
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            https://github.com/vpetrigo/courses.git

          • CLI

            gh repo clone vpetrigo/courses

          • sshUrl

            git@github.com:vpetrigo/courses.git

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