I have a simple task:
To build notepad with hashtags.
So user will be able to add a note and to add a list of #hashtags to it.
Basically I will have 2 objects:
Note
Hashtag
I want to be able to access all:
Assigned hashtags to a specific note by note.RelatedHashtags
Assigned notes to a specific hashtag by hashtag.RelatedNotes
It sounds like many-to-many, but I can't find any code example that I can learn from for Windows Phone. Also it sounds like I need to add a third object (table) to keep the data in the needed structure, but than how the mappings should be configured?
The most informative link I found so far:
http://www.geekchamp.com/tips/windows-phone-mango-local-database-sql-ce--association-attribute
Thank you.
The solution was quite simple - to create a third table and relate it to both Notes and Hashtags tables.
I found some very useful code example here.
P.S.: Don't forget to check Local database best practices for Windows Phone
Related
Sorry about the broad question. I'm just curious if someone could point me in the right direction.
Say there's a database of contact information, and there's a site where you can input a persons name and it brings you to a page with all of their information on that database. How does this happen exactly? The server would have to dynamically create this page, but does it have a generic format that it just fills with the information? And how does this happen?
Like you said, this is a an extremely broad question. It could be either way. The server could generate the entire contents dinamically, or it could be "filling the blanks" into a preformatted layout.
Google some PHP basic tutorials. That should give you a good idea about how this "dynamism" works. Sorry but your question is too broad to ellaborate more.
The server would dynamically create the page using PHP and SQL. There is a quick tutorial at http://www.mysqltutorial.org/php-querying-data-from-mysql-table/ that shows how it would be setup.
If I understood your question right, you are asking things like how this page was created, for example, in which case it can be as simple as a basic PHP and SQL combination. You can check an example on the w3sschools website:
Try it yourself example
There would be special place holders for the data and a query will extract the data and put it into the given place holders, please note, you can also use loops to add things like tables, fetch through multiple rows and so on.
Hey can anyone tell me how can i create tables dynamically in GAE.I want to create a friend list like in Facebook where i can store the details of my friends.Likewise everyone will have a table of their own.I cannot make a single table because if someone is my friend he might have people who are not my friends so why should i store their details.
I've searched a lot but not found anything.
Also please suggest some alternatives if possible.
In that case you can use namespaces.
https://developers.google.com/appengine/docs/java/multitenancy/multitenancy
For an example of dynamic table creation, you can look at Google's ShardedCounter class at https://developers.google.com/appengine/articles/sharding_counters to see how the name of the table (really Entity in GAE) can be composed at runtime.
I am new to joomlah . So far I have acomplished the following :
1. I have installed it on wamp server.
2. I have created a fewe articles.
3. I have created another schema on the database that comes with a wamp.
Now, I need to do two things and I wonder what is the best practice
1. Create a template article that will display data in a format
2. Load the data from the DB.
Since a lot of the answers to this question refer to older versions or 2009 answers
I wonder what is the reccomended way to do it today.
(Should I do it with PHP? is there a recommended pluggin? )
Thanks
You have 2 choices either:
Using this tutorial create a custom component (components are the extension type responsible for displaying content in Joomla's main area)
Look through the Joomla! Extension Directory (JED) for an existing solution - probably start with the "Tables & Lists" category.
I have used Table JX extension for a few years now. It is commercial, though but I think it is worth its money. It has a pretty simple user interface and you can do the basic stuff like to show a database table in an article just by clicking.
Their webpage is not the best, but the demo is quite informative: http://www.toolsjx.com/table-jx/demo
I am currently designing a reviews site for video games similar to gamespot am wondering where and if there is an online database that contains information such as name, publisher, release date etc with an API. I dont really want to have to enter each title manually or let users enter the title manually.
Where do these large sites get information like this? I wouldn't think it would be manually. I know for movies IMDB exists.
How would I go about adding it to my database?
Thanks
May I point you to web scraping?
Be sure to read the section legal issues and on well-behaved bots.
There's always Amazon and their product advertising API. Some older, but interesting code snippets can be found on this page.
If you know Perl, there is an amzing module called WWW::Mechanize
Pretty much you can write a script to get to any website and grab any data you need.
So for example you can go to www.gamespot.com, get list like the one below and put them in your database.
http://www.gamespot.com/games.html?platform=1029&mode=all&sort=views&dlx_type=all&sortdir=asc&official=all&tag=games%3Bfooter%3Bmore
Are there tools that make the job easier? If command-line only tools exist, then can anyone speculate if there is a market for a GUI tool? For example, you can create a relational database by modeling visually. Should the same notion exist for LDAP?
Apache Directory Studio includes an ldif-Editor. It is still a text editor but with syntax highlighting, autocompletion and group collapsing for ldif files:
http://directory.apache.org/studio/
I don't know if there are any tools but it isn't that hard to create them by hand.
If you are using IPlanet LDAP then they had a nice interface for creating and modifying schemas though. :)
I don't know if you would consider that to be by hand otherwise that is one tool to use.
I've done some LDIF handling using Perl and the Net::LDAP::LDIF module and it made scripting custom LDAP conversions very easy.
Have you looked at the command-line tool, LDIFDE.exe? Should be on your domain controller.
Business people give me Excel spreadsheets with inconsistent formatting of user and group data and want it loaded right away (then they come back with a new version and tell me they've only added some new users, but some are missing, some data is now invalid, there's a missing column etc.) They want unique passwords assigned, group memberships set up based on department id fields, and so forth.
Then they come back two weeks later and want to know about the differences between that spreadsheet and one from six months ago. Sigh.
I generally just do it all with a few hand-crafted Python scripts.
A lot of times you may be copying objects from one tree to another. Or backing them up. In that case, most LDAP tools have some way of exporting as LDIF. Then you can easily modify the files as needed.
Or copy examples to reuse.
I have seen a number of tools that will do tasks and output the results as LDIF, which can be handy, but they are basically point usage tools.