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  • Django users and authentication from external source

    - by Boldewyn
    I have a Django app that gets it's data completely from an external source (queried via HTTP). That is, I don't have the option for a local database. Session data is stored in the cache (on my development server I use a SQLite database, so that is no error source). I'm using bleeding edge Django 1.1svn. Enter the problem: I want to use Django's own authentication system for the users. It seems quite simple to write my own Authentication Backend, but always just under the condition that you have a local database where to save the users. Without database my main problem is persistence. I tried it with the following (assume that datasource.get() is a function that returns some kind of dict): class ModelBackend (object): """Login backend.""" def authenticate (self, username=None, password=None): """Check, if a given user/password combination is valid""" data = datasource.get ('login', username, password) if data and data['ok']: return MyUser (username=username) else: raise TypeError return None def get_user (self, username): """get data about a specific user""" try: data = datasource.get ('userdata', username) if data and data['ok']: return data.user except: pass return None class MyUser (User): """Django user who isn't saved in DB""" def save (self): return None But the intentionally missing save() method on MyUser seems to break the session storage of a login. How should MyUser look like without a local database?

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  • Replicate Oracle to MySQL

    - by Rosdi
    I am developing a web apps, this web application will be using MySQL. Now I need to replicate my client's Oracle database into MySQL, only a few tables will be involved.. a table can be up to 2-3 million rows. I only have SELECT privilege on this Oracle, so don't ask me to install any kind of service on the Oracle machine. I have complete control on the MySQL side however. The replication is only one way (Oracle to MySQL). I can write a simple script to truncate MySQL table and repopulate it every night but I think this is very inefficient, there must be a better way. Is there any free tools I can use? Expensive database replication system is definitely out of the question.

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  • Backing up an online database

    - by Veejay
    I havea 70MB db of my website which is hosted with a provider. I am able to access my db using SSMS 2008 remotely. On a running website, which is the best way I can back up the db locally on machine Thanks

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  • Passing sql results to views hard-codes views to database column names

    - by Galen
    I just realized that i may not be following best practices in regards to the MVC pattern. My issue is that my views "know" information about my database Here's my situation in psuedo code... My controller invokes a method from my model and passes it directly to the view view.records = tableGateway.getRecords() view.display() in my view each records as record print record.name print record.address ... In my view i have record.name and record.address, info that's hard-coded to my database. Is this bad? What other ways around it are there other than iterating over everything in the controller and basically rewriting the records collection. And that just seems silly. Thanks

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  • MySQL Student database beginner SQL employment expectations

    - by sammysmall
    Background, Student pursuing BSIT degree, employer expectations, entry level. I would like to solicit opinions from this forum as to what your professional expectations are as regards an entry level position in working in the database realm... I see many job opportunities that require a minimum of 2 or more years experience, how does one go about obtaining this experience (I have tried very hard to maintain a minimum 3.70+ GPA) but have ZERO work experience in this field... I spend non school time working in VB and SQL to try and increase my proficiency. I have considered postponing my job search until I obtain certifications from brainbench etc... Any criticism and or advise is welcomed... Again I have no experience in database other than undergrad work in class. Thank you for your time sammysmall

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  • Can No Longer Find Firefox Spell Check Personal Database in Firefox 3

    - by Volomike
    I have Ubuntu Linux 8.04 LTS with Firefox 3.6.3. Unfortunately it is super easy to accidentally click Add To Dictionary on a word you do not want added into one's personal dictionary used in Firefox. How do I remove the word 'intsead' out of it? I tried some tutorials on the web that said to find ~/.mozilla/*.default/persdict.dat, but I could not see one. As well, others have complained that this file no longer exists in Firefox 3.

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  • Unable to connect to MS Access database through JDBC on Win 7 64-bit

    - by Ninad
    Hello. I've been trying to connect to a MS Access 2007 database through JDBC. My JDK is JDK 1.6u18 64-bit and OS is Windows 7 64-bit. But problem is I am unable to create a DSN using Windows\system32\odbcad32.exe because it doesn't show ODBC drivers for MS Access at all, it's only showing drivers for MS SQL Server. When tried to click on Configure for "MS Access Database" (which is an already created DSN, I guess), it first shows error message : "The setup routines for the Microsoft Access Drivers (*.mdb, *.accdb) ODBC Driver could not be found. Please reinstall the driver." And then another message : "Errors found! The specified DSN contains an architecture mismatch between the Driver and Application." I cannot reinstall the MDAC as it doesn't work with Windows 7 (which comes with its own WDAC). The odbcad32.exe in Windows\SysWOW64 does let me create a DSN for MS Access, it shows the drivers installed properly. However, when tried to connect to that DSN through a Java program, I get the following exception : java.sql.SQLException: [Microsoft][ODBC Driver Manager] The specified DSN contains an architecture mismatch between the Driver and Application at sun.jdbc.odbc.JdbcOdbc.createSQLException(Unknown Source) at sun.jdbc.odbc.JdbcOdbc.standardError(Unknown Source) at sun.jdbc.odbc.JdbcOdbc.SQLDriverConnect(Unknown Source) at sun.jdbc.odbc.JdbcOdbcConnection.initialize(Unknown Source) at sun.jdbc.odbc.JdbcOdbcDriver.connect(Unknown Source) at java.sql.DriverManager.getConnection(Unknown Source) at java.sql.DriverManager.getConnection(Unknown Source) at AccessTest.main(AccessTest.java:19) What might be the problem and what do I have to do to get it working? My OS as well as JDK are 64-bit. Can't I connect to a Access 2007 database, which I presume is 32-bit? Any help would be highly appreciated. Also, in case one thinks this's not a right place for this question, I apologize in advance. Then please guide me to appropriate forum. Another option would be to find a third-party JDBC driver for MS Access. But I do need to know what's wrong with my configuration. :-/ PS : I know there're many better databases available out there, but for few unfortunate reasons, I have to use MS Access only and have to get it working.

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  • Logging erros in SqlLite database from C# Windows Forms Application

    - by Ismail S
    I'm developing a win app in C# which communicates to a WCF Service. I want to log exceptions that are thrown on client to be logged in Sql Lite Database (Win app is using Sql Lite database for storing data locally). And then later it should be sent to the wcf service when required so that it can be useful for support/analysis/application improvement. I want a method which can be directly called in every catch block simply by LogHelper.Log(ex). I would like to know if anyone has done it through Enterprise library or used any good practice for such situation?

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  • iPhone connect to MySQL database on local network computer

    - by Billy Blanks
    I'm a bit of a noob to iPhone programming and I've read up on using PHP as the connection between an iPhone app and a remotely hosted MySQL database, but what I need to do is to connect directly to a MySQL database running on a local machine in my office. The machine is behind the same gateway and has an ip address similar to 192.169.x.x. Is that possible without PHP in the middle or anything else for that matter? Thanks in advance. Really appreciate this site.

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  • Do connection string DNS lookups get cached?

    - by joshcomley
    Suppose the following: I have a database set up on database.mywebsite.com, which resolves to IP 111.111.1.1, running from a local DNS server on our network. I have countless ASP, ASP.NET and WinForms applications that use a connection string utilising database.mywebsite.com as the server name, all running from the internal network. Then the box running the database dies, and I switch over to a new box with an IP of 222.222.2.2. So, I update the DNS for database.mywebsite.com to point to 222.222.2.2. Will all the applications and computers running them have cached the old resolved IP address? I'm assuming they will have. Any suggestions along the lines of "don't have your IP change each time you switch box" are not too welcome as I cannot control this aspect of the situation, unfortunately. We are currently using the machine name of the box, which changes every time it dies and all apps etc. have to be updated with the new machine name. It hurts.

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  • Database Performance Across 3 NetApp FAS2050

    - by bjd145
    I recently inherited a SQL Server 2005 box that has LUNs mounted on it from three different NetApp FAS2050 filers. The reason there are three is because the first two filers are out of space and our databases continually need more of it. What kind of performance impact (if any) does this setup have? Is it better to move the LUNs from the two other older filers to the newer one so that we have only one filer/controller for caching, etc ? This is in general. I apologize for not having more specifics.

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  • Silverlight -> WCF -> Database -> problem

    - by Billy
    Hi there, I have some silverlight code that calls a WCF service which then uses the Entity Framework to access the database and return records. Everything runs fine but ... when I replace the Entity Framework code with classic ADO.NET code I get an error: The remote server returned an error: NotFound When I call the ADO.NET code directly with a unit test it returns records fine so it's not a problem with the ADO.NEt code I used fiddler and it seems to say that the service cannot be found with a "500" error. i don't think it's anything to do with the service as the only thing I change is the technology to access the database. Anyone know what i'm missing here?

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  • how to read a User uploaded file, without saving it to the database

    - by GoodGets
    I'd like to be able to read an XML file uploaded by the user (less than 100kb), but not have to first save that file to the database. I don't need that file past the current action (its contents get parsed and added to the database; however, parsing the file is not the problem). Since local files can be read with: File.read("export.opml") I thought about just creating a file_field for :uploaded_file, then trying to read it with File.read(params[:uploaded_file]) but all that does is throw a TypeError (can't convert HashWithIndifferentAccess into String). I really have tried a lot of various things (including reading from the /tmp directory as well), but could get none of them to work. I hope the brevity of my question doesn't mask the effort I've given to try to solve this on my own, but I didn't want to pollute this question with a hundred ways of how NOT to get it done. Big thanks to anyone who chimes in.

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  • Populate JSP dropdown with database info

    - by Cano63
    I'm looking for the way to populate a JSP dropdown. I want that when the JSP loads it fills the dropdown with the info that I have in a database table. I'm including the code of my class that will create the array and fill it with the database info. What I don't know is how to call that class from my JSP and fill the dropdown. // this will create my array public static ArrayList<DropDownBrands> getBrandsMakes() { ArrayList<DropDownBrands> arrayBrandsMake = new ArrayList<DropDownBrands>(); while (rs.next()) { arrayBrandsMake.add(loadOB(rs)); // CARGO MI ARREGLO CON UN OBJETO } return arrayBrandsMake; } // this will load my array object private static DropDownBrands loadOB(ResultSet rs) throws SQLException { DropDownBrands OB = new DropDownBrands(); OB.setBrands("BRAN"); return OB; }

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  • Storing a SHA512 Password Hash in Database

    - by Chris
    In my ASP.NET web app I'm hashing my user passwords with SHA512. Despite much SO'ing and Googling I'm unclear how I should be storing them in the database (SQL2005) - the code below shows the basics of how I'm creating the hash as a string and I'm currently inserting it into the database into a Char(88) column as that seems to be the length created consistently Is holding it as a String the best way to do it, if so will it always be 88 chars on a SHA512 (as I have seen some bizarre stuff on Google)? Dim byteInput As Byte() = Encoding.UTF8.GetBytes(sSalt & sInput) Dim hash As HashAlgorithm = New SHA512Managed() Dim sInsertToDatabase As String = Convert.ToBase64String(hash.ComputeHash(byteInput))

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  • Database Instance

    - by Sam
    I read a statement from an exercise: construct a database instance which conforms to diagram 1 but not to diagram 2. The diagrams are different n-ary relationships that have different relationships. Diagram 1 has a many to one to many to one relationship. Diagram 2 has many to many to many to one relationship. So, to really understand this problem, what does a database instance mean? Is it to make an example or abstract entities like a1, a2, or a3. Thanks for your time.

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  • ASP.NET - dynamically creating database connection in datasets

    - by Foo
    I am currently using datasets for my data access layer. I currently store the connection string in the web.config file. I need the ability to change the connection to another database before any queries are processed. Is there an event that is triggered or a base class that can be modified that intercepts the process of retrieving the connection string from the web.config file? Is there any way to handle multiple database connections using the same code base and also take advantage of the connection pooling? I understand the best method is to get rid of datasets and use custom data objects. Any ideas?

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  • Problem with ColdFusion communicating with MySQL database

    - by Greg
    Hi, I have been working to migrate a non-profit website from a local server (running Windows XP) to a GoDaddy hosting account (running Linux). Most of the pages are written in ColdFusion. Things have gone smoothly, up until this point. There is a flash form within the site (see this page: http://www.preservenet.cornell.edu/employ/submitjob.cfm) which, when completed, takes the visitor to this page: submitjobaction.cfm . I'm not quite sure what to make of this error, since I copied exactly what had been in the old MySQL database, and the .cfm files are exactly as they had been when they worked on the old server. Am I missing something? Below is the code from the database that the error seems to be referring to. When I change "Positionlat" to some default value in the database as it suggests in the error, it says that another field needs a default value, and it's a neverending chain of errors as I try to correct it. This is probably a stupid error that I'm missing, but I've been working at it for days and can't find what I'm missing. I would really appreciate any help. Thanks! -Greg DROP TABLE IF EXISTS employopp; CREATE TABLE employopp ( POSTID int(10) NOT NULL auto_increment, USERID varchar(10) collate latin1_general_ci default NULL, STATUS varchar(10) collate latin1_general_ci NOT NULL default 'ACTIVE', TYPE varchar(50) collate latin1_general_ci default 'professional', JOBTITLE varchar(70) collate latin1_general_ci default NULL, NUMBER varchar(30) collate latin1_general_ci default NULL, SALARY varchar(40) collate latin1_general_ci default NULL, ORGNAME varchar(70) collate latin1_general_ci default NULL, DEPTNAME varchar(70) collate latin1_general_ci default NULL, ORGDETAILS mediumtext character set utf8 collate utf8_unicode_ci, ORGWEBSITE varchar(200) collate latin1_general_ci default NULL, ADDRESS varchar(60) collate latin1_general_ci default 'none given', ADDRESS2 varchar(60) collate latin1_general_ci default NULL, CITY varchar(30) collate latin1_general_ci default NULL, STATE varchar(30) collate latin1_general_ci default NULL, COUNTRY varchar(3) collate latin1_general_ci default 'USA', POSTALCODE varchar(10) collate latin1_general_ci default NULL, EMAIL varchar(75) collate latin1_general_ci default NULL, NOMAIL varchar(5) collate latin1_general_ci default NULL, PHONE varchar(20) collate latin1_general_ci default NULL, FAX varchar(20) collate latin1_general_ci default NULL, WEBSITE varchar(200) collate latin1_general_ci default NULL, POSTDATE varchar(10) collate latin1_general_ci default NULL, POSTUNTIL varchar(20) collate latin1_general_ci default 'select date', POSTUNTILFILLED varchar(20) collate latin1_general_ci NOT NULL default 'until filled', texteHTML mediumtext character set utf8 collate utf8_unicode_ci, HOWTOAPPLY mediumtext character set utf8 collate utf8_unicode_ci, CONFIRSTNM varchar(30) collate latin1_general_ci default NULL, CONLASTNM varchar(60) collate latin1_general_ci default NULL, POSITIONCITY varchar(30) collate latin1_general_ci default NULL, POSITIONSTATE varchar(30) collate latin1_general_ci default NULL, POSITIONCOUNTRY varchar(3) collate latin1_general_ci default 'USA', POSITIONLAT varchar(50) collate latin1_general_ci NOT NULL, POSITIONLNG varchar(50) collate latin1_general_ci NOT NULL, PRIMARY KEY (POSTID) ) ENGINE=MyISAM AUTO_INCREMENT=2007 DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci;

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