I've got a raspberry pi with raspbian and all I've done is installed apache2 and created a small web site i want to create a database.
is this possible without using mysql or other database software. i want to use .JS or a text based database
I want to be able to save the contact details in a text format.
can someone point me in the right direction a simple example would be appreciated all online research wants mysql etc
all i want is a simple example as in enter name and submit i want that name to be logged so if name entered again it will say welcome back once i know this mechanism i can add all the other fields. The reason i want this format is so i can see the list that I'm creating.
i just can't get to grips with mysql I've spent months trying to understand mysql but its just not going in so want to simplify the database to minimal workings so i can complete my site. I know .Js isn't so secure but its a demo so security not important at this point any help appreciated
It would be possible to use JSON for your data storage. It will be a key-value storage. On each page view you will have to load the entire file into memory and parse it. From then on it is possible to loop it to search data or get data from a key. This requires no extra software just PHP with Apache.
How to:
Build an array, use json_encode to create the JSON and save it using file_put_contents(). Remebmer to save the whole array and not just the newly added element.
This is not a relative database but might do the trick if you build an intelligent system with cookie's to store an ID that is associated with a user.
Alternative you could use serialize() instead of json;
If you don't mind to use different way of storing data you can use either Google App Engine or mongolab or other cloud based databases
Related
can we connect our python script to interact with the database whose url is known.If yes then how we would do that?? and will we be able to interact with the datbase??
I am going to start working on automating a process whic right now is done manually in my company by accessing a datbase and using it for extracting values or data.
Now this is my first day and i don't know from where to start.All that i know is right now i am having a url to database and the database consists of a "query section" where i will feed what i want to search using different fields of the database query page and will get a list matching my search.
i have to use this list in my GUI that i have to develop. for this purpose i need to know how to access a database using its url and how to interact with it.My database is developed using JavaScript
i am a beginner.Please folks help me with this.
You should specify your database first. e.g mysql
then you can use a ORM like SQLALCHEMY to ease the process for you and in that case this is how you address the db, something like:
"mysql://{}:{}#{}:{}"
.format("YOUR_SQL_USERNAME","YOUR_SQL_PASSWORD", "YOUR_SQL_HOST", "YOUR_SQL_PORT")
I am new to using StackOverflow and I don't know how to properly ask this question also this is my first time using swift and some external database server.
I am creating an ios app using Xcode and I'm attempting to create an inventory to store items (300 - 1000 items) such as milk, eggs, bread etc and will have to store the product image as well as the product details such as weight, price, ingredients etc.
But I have no idea as to what to use I was thinking mysql but after doing some research I've found its best not to use blob. I've already used MySQL for the login page into the app so I assumed it was easier to use mysql for the product database as well.
The idea is the user creates an account, logs in then can view products in my made up store. I wanted to use an external database so I can give the app to friends and they can use it by downloading from the app store when it's finished.
Can you save the bytes of a large file in a database? Yes. Should you? No.
Generally speaking the proper way to handle files in a database is to store the URL of the file, not the file itself.
If the images you're using are available online and you are only need to view them, you only need to save the URL itself. There are libraries that can handle all the downloading and cacheing quite easily once you have the URLs.
If you still need to have the images locally, Save them to disk and store those local File URLs in your database.
I'm new to webdev and I'm trying to use passport for registration/authentication on a site I'm setting up. I'm also going to write an application in node later on that will be using some of the user data (users will need to provide an API key for an account on another site that I will use to pull data into the application).
At the moment, the main issue I'm having is figuring out what goes where. I've found plenty of resources that explain how to create an app using passport, but nothing shows how it would be incorporated into your website or where the files should be in relation to your website. I'm relatively new to Node.js, and while I've written a few small applications I have never hosted them anywhere.
Bonus question: I'm using MongoDB with passport and I was also planning to use it to store some JSON my application will be receiving from API calls. However, I wanted to use MySQL to store some data as well. More specifically, I'm planning to save the raw JSON then I'll create a relational database out of the data I need from the JSON and then keep the rest in MongoDB for easy access. Is this common/smart, or should I focus on keeping everything in my MongoDB? I'm relatively new to NoSQL.
Thanks in advance for any help.
I would reference this tutorial. I just recently used this to help myself with a new application. Also there is an example of the same thing but in SQL here. So not sure what you mean by " where the files should be in relation to your website". The information related to to authentication should go in your database.
To your "bonus question" you can use two databases. The key here is to ask yourself why and what are the true needs for data, and how is this data accessed and used. From ground up I would like one and stick with it. If at some point later you realize a certain type of data would be better in a different database then you can add it.
Side note: look into an IDE such as webstorm to help you out.
My php script pulls about 1000 names from the mysql db on a certain page. These names are used for a javascript autocomplete script.
I think there's a better method to do this. I would like to update the names with a cronjob once a day (php) and store the names locally in a text file? Where else can I store it? It's not sensitive info.
It should be readable and writable to php.
Since you only need the data updated once a day, have a cron-script generate a static json file in some fixed location. Then read this with ajax on the client and make sure it caches it on the client.
Or potentially, generate the file whenever the database is updated (if this is applicable, I don't know your application)
You could try Memcache. But that could be like using a sledge-hammer to crack a nut.
Edit What about storing the data as simple file and let users (JavaScript) download it. Clients would not query the server for every key stroke because they could search for matching values themself. Format could be JSON because it is simple and JavaScript native.
It's unlikely reading from a text file will be much faster than a database query - MySQL already does a lot of caching that should make your query speedy.
If you need to make this query often and performance is a problem often you could consider using a caching module for PHP.
Related
The best way of PHP Caching
I'm currently in the planning phase of a rather large project that I'll develop in the Zend Framework. One of the problems I'm facing is that the customers will want to translate not only the content but also the interface. I'm currently using gettext and poedit to manage my language files but this is not an option for the customer as they, for one, wont have FTP access to the site.
Hence, I'm thinking of a mysql back end with an interface in the front end for the customer to manage his own translations of the interface. There is however still no mysql adapater for Zend_Translate.
So, does anybody now of an adapter script for Zend_Translate so it can work with a mysql table? Or any arguments against using mysql and possible other solutions for this problem?
You could solve this problem on different ways:
Extend Zend_Translate_Adapter to create your own. All new adapters are only responsible from getting the translations out from the source. That is, you would need only to fetch the translations from the database. Look at other adapters and see how they are implemented.
Fetch the data from the database and pass it to Zend_Translate_Adapter_Array
Use Zend_Translate_Adapter_Csv or Ini. As there would be more reading the writing on the translations, this solution would cut down the number of queries to the database. When the client adds a new language or changes an existing one, simply write it to a file, not the database.
If you decide to go with the database adapter, maybe you could "tag" somehow the translations, so that on the home page you fetch only the translations for the home page, on the contact page only the translations for the contact page...
HTH!
Default Zend adapters handle caching well, so I'd stick to them, unless you really need database.
Instead storing the translation data in the database, you may directly operate on the translation files (e.g. po templates). This would be the best choice if you just needed to add (append to file) new translation strings.
You may use Zend_Translate's option to log untranslated messages (to file or any log adapter, including database),
and then handle the logs, or even create listener translating the saved strings.
Here's how: http://cloetensbrecht.be/zend_translate_mysql.html