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I am newbie to web designing. Here I am trying to develop a web page where it prompts for username and password and when I click on button, this html has to make connection with these username and password values entered by user to Marklogic database . Could anyone please help how to do this? Is it through Javascript or PHP? If so please advise where can I find step by step explanation of this process ? Also it is okay if I get procedure for any NOSQL database.
OK. Your statement is a bit big and broad.. I decided to extract the most relevant concepts:
Sample Application including authentication
MarkLogic
Javascript or PHP
Therefore, I suggest looking at a reference framework using all javascript:
http://www.marklogic.com/what-is-marklogic/whats-new/samplestack/
This can have a node.js middle tier in node.js and does not require java.
It is a big step forward and (sort of) complex, but it is a complete example.
If it is too much for what you are looking for, then I suggest you research more specifically what you need in these two specific items in MarkLogic documents:
HTTP Server (where you can run your HTML/CSS/Javascript from)
REST API (for which you can use against your js code)
This is a 2-tier approach where your application(HTTP) server is serving both your HTTP site as well s the default REST enpoints.
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I'm quite a newbie in everything related to web development, but I had this project in my mind that I really wanted to realize.
At the moment I am struggling with a method to send a request to the server hosting the website. The idea is that from the site you can enter keywords, and those keywords should be run in a script (python or java(script)) on the server after which it returns an output to the webpage. In theory this script could be executed in the website itself as javascript, but I would like to use the computing power and internet access from the server.
I have researched on using Json and javascript for the job, but I think there has to be a better way for this purpose. Is there anyone that can direct me where to look?
You should build your form in HTML. (More info: https://www.w3schools.com/html/html_forms.asp)
In client-side JavaScript (the code that website users have executing in their browser), you should use the jQuery library to scoop the data out of your form. Take a look at the .submit() and .val() functions to get started. Then you can use jQuery's AJAX function to submit requests to the server-side API in a JSON format.
On the server, in addition to creating a way of serving up the webpages (with their client-side JavaScript), you will then need to create an API to receive and respond to these requests. One way to do this is by running Node.js with Express, which will allow you to write your API in JavaScript. The downside to this is you will have to pay to get a full-fledged virtualized cloud server through AWS, Rackspace, or another host. The other option is for you to write your API in PHP, which is supported by free webhosts like x10hosting.com.
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I have been researching this for a few weeks now, and am still stuck. I still don't understand how to make a custom login system. I can't get the database for mySQL for mac or PC, and Ruby on Rails would mean me to code in erb language and I don't understand erb. Can someone help?
First of all, you need to setup a localhost. For Mac, to get started, you can use MAMP or XAMPP. These will set up a local environment for you as well as a way to connect to a Database.
Once you've installed this, you need to create a database (MAMP and XAMPP come with an integrated Database UI called PhpMyAdmin).
Once you have set up your environment, you can start to integrate PHP.
There are various tutorials online to do this, here is a list of some simple ones:
http://www.webgeekly.com/tutorials/php/how-to-make-a-login-system-with-php/
http://www.phpro.org/tutorials/Basic-Login-Authentication-with-PHP-and-MySQL.html
If you have never used PHP before, I suggest you read up on the basics before diving into creating a login system, as you won't understand that much of it.
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I have to build a website which involve e-commerce stuff like it should allow the users to login and then view the available items. Once the user selects the items and makes payment, it may need additional information in the form of some images/videos to complete the order. So, after payment step, it prompts the user to upload the file and when the file is uploaded on the server, request is complete and the user is kept informed about the status.
All the core functionality is already implemented using REST-ful webservices. I am not able to decide if I should implement the website using HTML+JS (using AJAX to call webservices) or should still use JSP and call webservices using java at server side? Someone suggested me that using JSP is better since it will execute on server side and hence will be secured and faster. But, I somehow feel that HTML+JS is easier to go. Is there some specific advantage to use a server side script like JSP for this purpose? Any ideas are most welcome.
Yes server side scripting will be fruitful for this purpose for security constraints. Or you can use angular js though they are easy to learn and they are secure and can make fast XHR request response. :)
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I made a database that holds information about clinical trials and so far I have been accessing and writing to it using php. I was wondering if there was a way to read/write to a SQL Server database using javascript or jquery? The UI I am developing will be for adding clinical trial data to the database. Only the DB admins will have access to this UI so security should not be a "huge" problem.
You need a middle tier like php, rails, java... to do the database write. You can't do this from the browser with javascript. But there is Node.js, which allows you do write javascript on the server.
In short, no. Even if there was, you should never leave data validation to the client. Just because your DB Admins are trustworthy, doesn't mean those who break into your network will be. DROP TABLE ClinicalTrialData; would be a bad thing. Use PHP/backend of choice to do the donkeywork and use AJA[X|J] if you want a slick UI experience.
Only server side Javascript methods such as using NodeJS as your server. Never put your database credentials on the front end unless you want people to directly access your database.
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Hi I am trying to develop a mobile app. The problem I am having is this, when the user fills in a form on the html page I want the data to get written to an unordered list on the same page. I want when the next user fills data for that dat to get written to the second list item in the list and so on
.
Thanks in advance for any help you may be able to give with this problem
If I understood correctly, you're trying to make an app that stores the data of each submitting of the forum and returns them to all users that come across the page?
For such tasks you'll need, at least:
A web server that runs PHP, Python or other language to your liking*;
A database to connect the server-side with (MySQL or PostgreSQL usually);
What you need to do:
Learn about HTTP POST and basic SQL input/output if you haven't;
Learn AJAX if you haven't;
Store the user input in the database and have a server script retrieve it on call;
Update the dynamic page bit (the unordered list) with AJAX (loading a XML file with the PHP script that writes the database info into it should do) every minute or so using a timeout function.
I'll post links to all I've mentioned in a minute.
*NodeJS is getting popular for being asynchronous (making it easier for dynamic pages to interact with the server) and allowing programmers to use the same language client- and server-side, but I have never tried it to tell you how it fares. Edit: says John NaN: NodeJS is not recommended. Again, I don't know it myself; that is why it's on a note and not upper in the post. Good luck!
*Bonus note: don't trust W3Schools most of the time. The AJAX tutorial I linked to, however, isn't that bad and it's easy to follow.