I'm trying to code a small program for my friend's company. They build metal cabinets and every cabinet is made out of several parts. So when a customer tells them they need a new cabinet, they tell them the single part numbers. My friend needs now a little tool/database where he can look after those part numbers and if there is an entry, he can download the corresponding blueprint (saved as PDF). Of course the program needs also a function to create a new entry and uploading a PDF file with this entry.
The program needs only to be installed local on one windows machine.
Now I need to know if there is maybe a special way to solve this. It would be helpful if someone could give me some keywords, so I can google it and figure out how to begin :)
I have basic skills in C++ and Java and willing to learn new stuff :)
thanks!
Have used sqlite for database applications and found it to have a lot of functionality and speed. It lacks all the advanced database admin stuff but for single user/embedded databases its ideal. I use it over MySQL because of a significant performance improvement.
It has a Java interface via java.sql.Connection.
I think this is a good opportunity to try something else than C++/Java. In your case I would go for Ruby on Rails and for example the PaperClip extension (http://thoughtbot.com/community/) (haven't used PaperClip myself, though). Ruby on Rails is kind of made for this type of problem.
Related
I need to store and load some data in a C++ application. This data is basically going to end up as a set of tables as per a relational database.
I write the data to tables using something like csv format, then parse them myself and apply the database logic I need in my C++ code. But it seems stupid to reinvent the wheel with this and end up effectively writing my own database engine.
However, using something like a MySQL database seems like massive overkill for what is going to be a single user local system. I have tried setting up a MySQL daemon on my Windows system and I found it rather complex and possibly even impossible without admin privileges. It would be a serious obstacle to deployment as it would need each user's system to have MySQL set up and running.
Is there a reasonable middle ground solution? Something that can provide me with a simple database, accessible from C++, without all the complexities of setting up a full MySQL install?
NB. I have edited this question such that I hope it satisfies those who have voted to close the question. I am not asking for a recommendation for a tool, or someone's favourite tool or the best tools. That would be asking which database engine should I use. I am asking for what tools and design patterns are available to solve a specific programming problem - i.e. how can I get access to database like functionality from a C++ program, without writing my own database engine, nor setting up a full database server. This is conceptually no different to asking e.g. How do I print out the contents of a vector? - it's just a bigger problem. I have described the problem and what has been done so far to solve it. My understanding from the On Topic Page is that this is within scope.
You can try sqlite.
Here are some simple code examples: https://www.tutorialspoint.com/sqlite/sqlite_c_cpp.htm
This is an open source contributor project for Wikidata's Chronic Pain project.
I would like to create a webpage that :
Have inputboxes where the user select several wikipedia page titles (with suggestions)
Can also take these parameters via the URL
Get items metadata from Wikidata.
Makes a SPARQL request to gather scholarly articles.
Render data from Wikidata and Wikipedia, linking to various wiki pages.
The webpage will be hosted on Wikimedia fundation server. I have access to a linux container as well as a Jupyter Notebook (not sure this one is suitable for this project). It has to be coded in Python 3 since I will use Pywikibot framework to interact with Wikidata.
I'm new to programming so that I don't really know what is the best approach. I heard that it was difficult to code webpages in Python without using a framework like Django. However this page is very simple so that it may not be the most efficient to deploy Django for this ?
NB : your question is bordering on "primarily opinion based" (which doesn't mean it's a bad question by itself but that answers might be more, well, opinions than hard facts).
This being said, "a single interactive page" doesn't mean the server code behind is just loading a static html file and sending it to the client. For example, the main UI part of our product is, technically speaking, "a single interactive page", but this "single" page is full react app and is backed by a dedicated API with a dozen entry points, which the dispatch to a whole load of backend code including database access, celery tasks etc. It would of course be technically possible to code all this with only pure wsgi or even plain old cgi code, but well, it could also be possible to write it directly in C or even assembly and no one would ever consider this a viable solution.
To make a long story short: do not even waste your time trying to code this project with plain wsgi (and let's not talk cgi), you will end up reinventing the squared wheel and everyone will hate you for this (stakeholders because you'll never deliver a robust, working product in due time and budget, and other devs because they'll now have to port the whole darn thing to a stable, mature and maintained framework). Now if Django appears to be overkill for this project there are much lighter frameworks like flask. Actually both are the "industry standard" and safe choices.
Hei there, I'm not experienced at all in C++ as I need to start learning year the next year at my university, though, I've been creating a browser based game and I'm looking for someone to transform it into pc app.
Though, I'm wondering how to make that application send a http request via POST to a file on my webserver with the username / pw.
After all the tutotials I've been reading, I concluded that none worth spending my time with, because they all based on own database, and I'm looking for one that connects to a maestro server and requests the data from there.
This may not be the answer you are looking for, but you may consider two alternatives to a more pure C++ application.
If you already have a working browser game, try to take that same code and put the html/javascript/whatever in a file and give the file a ".hta" extention. It basically opens inside a browser to run your files, but it acts more like an application from the user's viewpoint. (And, as much as I hate Windows, they're pretty fun to create if I may say so). However, your source code with this option is easily read because it can be renamed to a text file (or html file).
You could use Visual C++ (or VB.net, which you have tagged to the question, as well as "Visual" C#) to create an application which mostly consists of a browser view. It could be a "standalone" application (however would rely completely on the .Net framework - may or may not be what you want) that basically accomplishes the same as the option above, but adds that you can "hide" your files inside your application.
Using the two above alternatives, you could make an application relatively quickly that would load your files, which I assume you have already created. Note that neither of the above alternatives will work on anything other than Windows OS's.
If the two above alternatives are not what you want, or if you have questions about either one, I'd be glad to attempt to help.
I've been able to find a friend that would do it in Delphi because I wouldn't want users to download net framework just for this ap.
So the program that would fit most for any apps is Delphi Prism XE (even if it's an addon of Visual Studio)
So I'm planning to develop a Community feature for a game I'm developing. Currently, the high score server, which I want to integrate this user registry with is developed in pure c++.
Is there a c++ library for developing user registries? Currently, I am thinking of implementing the user registry by saving to the file system, but if there are libraries for this it'd be even better.
This sounds like a very open ended question.
If you intend to have quite a lot of users and possibly do reporting on data or have to manage pieces of data manually.... you may want to look into sqlite. There would be slightly less administration and overhead than using a fully featured DBMS.
Are you sure you want the high score server in C++? Seems a bit out of place for me.
I would suggest something higher like PHP or Python with a SQLite database. Undoubtly example scripts for user registration can be found on the internet.
I have a few years experience programming c++ and a little less then that using Qt. I built a data mining software using Qt and I want to make it available online. Unfortunately, I know close to nothing about web programming. Firstly, how easy or hard is this to do and what is the best way to go about it?
Supposing I am looking to hire someone to make me a secure, long-term, extensible, website for an online software service, what skill set should I be looking for?
Edit:
I want to make my question a little more specific:
How can I take a bunch of working c++ functions and port the code so I can run it server side on a website?
Once this is done, would it be easy to make changes to the c++ code and have the algorithm automatically update on the site?
What technologies would be involved? Are there any cloud computing platforms that would be good for something like this?
#Niklaos-what does it mean to build a library and how does one do that?
You might want to have a look at Wt[1]. Its a C++ web framework which is programmed more or less like a desktop GUI application. One of the use cases quoted is to bring legacy apps into the web.
[1] http://www.webtoolkit.eu
Port the functions to Java, easily done from C++, you can even find some tools to help - don't trust them implicitly but they could provide a boost.
See longer answer below.
Wrap them in a web application, and deploy them on Google App-Engine.
Java version of a library would be a jar file.
If you really want to be able to update the algorithm implementation dynamically, then you could implement them in Groovy, and upload changes through a form on your webapp, either as files or as a big text block, need to consider version control.
The effort/skillset involved to perform the task depends on how your wrote your code. If it is in a self-contained library, and has a clean (re-entrant, thread safe) API, you could probably hire a web developer (html/php/asp etc) to write the UI interface to the library for a relatively small cost. The skills required would be dependant on the technologies you wanted to use. For Windows development I would suggest C#/ASP. The applicant would require knowledge of interfacing with native libraries from a managed language. This is assuming that you dont mind the costs of Windows deployment for your application.
On the otherhand, if the library is complex or needs to be re-written to support the extensibility you are looking for, asking here will not get you much.
BTW: here is a great article on Marshalling if you chose to implement using C#/ASP
http://msdn.microsoft.com/en-us/magazine/cc164193.aspx
First, DO NOT USE PHP :D
I used it for some projects (the last one with symphony framework) and i almost shoot my self !
If you are very familiar with C++, ASP .NET could be a good solution because if you like C++ you are going to love C#.
Any ways, I personally use Ruby on Rails for 6 months now and I LOVE IT. I won't write you a book here but the framework is pure gold !
The only problem is that Ruby is a very special language. You will probably be a bit lost a the beginning. But as every one you will learn to love it.
But that was only for the server side. Indeed, there 3 technologies you won't be able to avoid if you want to start to develop web applications.
HTML, CSS and JavaScript are presents every where. This is why i'm thinking you should start by HTML and CSS then JavaScript (with jQuery).
When you've got some basics with these 3 technologies you should be able to choose the server side language.
But you've got to tell you one thing, it's not going to be easy !
PS : Ruby on Rails uses HAML and SASS. These 2 languages replaces HTML and CSS you should have a look at them quickly because they are awesome.