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  • XCode sqlite3 - SELECT always return SQLITE_DONE

    - by user573633
    Hi developers.... a noob here asking for help after a day of head-banging.... I am working on an app with sqlite3 database with one database and two tables. I have now come to a step where I want to select from the table with an argument. The code is here: -(NSMutableArray*) getGroupsPeopleWhoseGroupName:(NSString*)gn;{ NSMutableArray *groupedPeopleArray = [[NSMutableArray alloc] init]; const char *sql = "SELECT * FROM Contacts WHERE groupName='?'"; @try { NSArray * paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES); NSString *docsDir = [paths objectAtIndex:0]; NSString *theDBPath = [docsDir stringByAppendingPathComponent:@"ContactBook.sqlite"]; if (!(sqlite3_open([theDBPath UTF8String], &database) == SQLITE_OK)) { NSLog(@"An error opening database."); } sqlite3_stmt *st; NSLog(@"debug004 - sqlite3_stmt success."); if (sqlite3_prepare_v2(database, sql, -1, &st, NULL) != SQLITE_OK) { NSLog(@"Error, failed to prepare statement."); } //DB is ready for accessing, now start getting all the info. while (sqlite3_step(st) == SQLITE_ROW) { MyContacts * aContact = [[MyContacts alloc] init]; //get contactID from DB. aContact.contactID = sqlite3_column_int(st, 0); if (sqlite3_column_text(st, 1) != NULL) { aContact.firstName = [NSString stringWithUTF8String:(char *) sqlite3_column_text(st, 1)]; } else { aContact.firstName = @""; } // here retrieve other columns data .... //store these info retrieved into the newly created array. [groupedPeopleArray addObject:aContact]; [aContact release]; } if(sqlite3_finalize(st) != SQLITE_OK) { NSLog(@"Failed to finalize data statement."); } if (sqlite3_close(database) != SQLITE_OK) { NSLog(@"Failed to close database."); } } @catch (NSException *e) { NSLog(@"An exception occurred: %@", [e reason]); return nil; } return groupedPeopleArray;} MyContacts is the class where I put up all the record variables. My problem is sqlite3_step(st) always return SQLITE_DONE, so that it i can never get myContacts. (i verified this by checking the return value). What am I doing wrong here? Many thanks in advance!

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  • Django: Summing values

    - by Anry
    I have a two Model - Project and Cost. class Project(models.Model): title = models.CharField(max_length=150) url = models.URLField() manager = models.ForeignKey(User) class Cost(models.Model): project = models.ForeignKey(Project) cost = models.FloatField() date = models.DateField() I must return the sum of costs for each project. view.py: from mypm.costs.models import Project, Cost from django.shortcuts import render_to_response from django.db.models import Avg, Sum def index(request): #... return render_to_response('index.html',... How?

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  • What's the best way to return stuff from a PHP function, and simultaneously trigger a jQuery action?

    - by Jack Webb-Heller
    So the title is a tad ambiguous, but I'll try and give an example. Basically, I have an 'awards' system (similar to that of StackOverflow's badges) in my PHP/CodeIgniter site, and I want, as soon as an award is earned, a notification to appear to the user. Now I'm happy to have this appear on the next page load, but, ideally I'd like it to appear as soon as the award is transactioned since my site is mostly Ajax-powered and there may not be page reloads very often. The way the system works currently, is: 1) If the user does something to trigger the earning of an award, CodeIgniter does this: $params['user_id'] = $this->tank_auth->get_user_id(); $params['award_id'] = 1; // (I have a database table with different awards in) $this->awards->award($params); 2) My custom library, $this->awards, runs the award function: function award($params) { $sql = $this->ci->db->query("INSERT INTO users_awards (user_id, award_id) VALUES ('".$params['user_id']."','".$params['award_id']."') ON DUPLICATE KEY UPDATE duplicate=duplicate+1"); $awardinfo = $this->ci->db->query("SELECT * FROM awards WHERE id = ".$params['award_id']); // If it's the 'first time' the user has gotten the award (e.g. they've earnt it) if ($awardinfo->row('duplicate') == 0) { $params['title'] = $awardinfo->row('title'); $params['description'] = $awardinfo->row('description'); $params['iconpath'] = $awardinfo->row('iconpath'); $params['percentage'] = $awardinfo->row('percentage'); return $params; } } So, it awards the user (and if they've earnt it twice, updates a useless duplicate field by one), then checks if it's the first time they've earnt it (so it can alert them of the award). If so, it gets the variables (title of the award, the award description, the path to an icon to display for the award, and finally the percentage of users who have also got this award) and returns them as an array. So... that's that. Now I'd like to know, what's the best way to do this? Currently my Award-giving bit is called from a controller, but I guess if I want this to trigger via Ajax, then the code should be placed in a View file...? To sum it up: I need the returned award data to appear without a page refresh. What's the best way of doing this? (I'm already using jQuery on my page). Thanks very much everybody! Jack

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  • Criteria query returns hydrated object in SQLite but not SqlServer

    - by Berryl
    I have a method that returns a resource fully hydrated when the db is SQLite but when the identical code is used by SqlServer the object is not fully hydrated. I'll explain that with the code after some brief background. I my domain various otherwise unrelated things like an Employee or a Machine can be used as a Resource that can be allocated to. In the object model an example of this would be: /// <summary>Wraps a <see cref="StaffMember"/> in a <see cref="ResourceBase"/>. </summary> public class StaffMemberResource : ResourceBase { public virtual StaffMember StaffMember { get; private set; } public StaffMemberResource(StaffMember staffMember) { Check.RequireNotNull<StaffMember>(staffMember); base.BusinessId = staffMember.Number.ToString(); base.Name = staffMember.Name.ToString(); base.OrganizationName = staffMember.Department.Name; StaffMember = staffMember; } [UsedImplicitly] protected StaffMemberResource() { } } And in the db tables, there is a table per class inheritance where the ResourceBase has a discriminator and the id of the actual resource (ie, StaffMember) StaffMember - 1 ---- M- ResourceBase - 1 ----- M - Allocation The Code public override StaffMemberResource BuildResource(IActivityService activityService) { var sessionFactory = _GetSessionFactory(); var session = sessionFactory.GetCurrentSession(); StaffMemberResource result; using (var tx = session.BeginTransaction()) { var propertyName = ExprHelper.GetPropertyName<StaffMember>(x => x.Number); var staff = session.CreateCriteria<StaffMember>() .Add(Restrictions.Eq(propertyName, new EmployeeNumber(_testData.Resource_1.BusinessId))) .UniqueResult<StaffMember>(); if (staff == null) { ... build up a staff member result = new StaffMemberResource(staff); } else { ////////// var property = ExprHelper.GetPropertyName<StaffMemberResource>(x => x.StaffMember); result = session.CreateCriteria<StaffMemberResource>() .Add(Restrictions.Eq(property, staff)) .UniqueResult<StaffMemberResource>(); } /////////// tx.Commit(); } return result; } It's that second criteria query that works "properly" with SQLite but not with SqlServer. By properly I mean that the employee numer is translated into a ResourceBase.BusinessId, Name is flattened out into a ResourceBase.Name, etc. Does anyone know why this might be? Cheers, Berryl

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  • How can I execute a SQL query in emacs lisp?

    - by Chris R
    I want to execute an SQL query and get its result in elisp: (let ((results (do-sql-query "SELECT * FROM a_table"))) (do-something-with results)) I'm using Postgres, and I already know all of my connection information (host, username, password, db et al) I just want to execute the query and get the result back, synchronously.

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  • SQL Reset Identity ID in already populated table

    - by rockinthesixstring
    hey all. I have a table in my DB that has about a thousand records in it. I would like to reset the identity column so that all of the ID's are sequential again. I was looking at this but I'm ASSuming that it only works on an empty table Current Table ID | Name 1 Joe 2 Phil 5 Jan 88 Rob Desired Table ID | Name 1 Joe 2 Phil 3 Jan 4 Rob Thanks in advance

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  • Why can't I shrink a transaction log file, even after backup?

    - by Jordan Hudson
    I have a database that has a 28gig transaction log file. Recovery mode is simple. I just took a full backup of the database, and then ran both: backup log dbmcms with truncate_only DBCC SHRINKFILE ('Wxlog0', TRUNCATEONLY) The name of the db is db_mcms and the name of the transaction log file is Wxlog0. Neither has helped. I'm not sure what to do next.

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  • asp.net-mvc return a couple of partial views onclick

    - by niao
    Greetings, I have an asp.net mvc application. When button is clicked (submit button) i would like to results to be displayed inside some div. I know how to do it. I have some action where I return a partial view. But when button is submitted then I get some multiple objects from db and I would like to display them all in div. How can I achieve it?

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  • converting linq query to icollection

    - by bergin
    Hi there. I need to take the results of a query: var query = from m in db.SoilSamplingSubJobs where m.order_id == id select m; and prepare as an ICollection so that I can have something like ICollection<SoilSamplingSubJob> subjobs at the moment I create a list, which isnt appropriate to my needs: query.ToList(); what do I do - is it query.ToIcollection() ?

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  • Building a CalDAV-server in PHP?

    - by Sandman
    Ok, so I'm the author of a CMS and I'm interested in building a CalDAV-server that enables the user to interface with my CMS through CalDAV instead of only through the web, so they can see their calendars, add todos and things like that. I've looked at http://www.davical.org/ which is a CalDAV service built in PHP, but it has its own database and I already have the DB stuff done and just want a middle-layer services that translates, both ways, to and from my databases using my functions. Any ideas?

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  • Avoid writing SQL queries altogether in SSIS

    - by Jonn
    Working on a Data Warehouse project, the guy that gave us the tutorial advised that we stick to using SQL queries over defining a lot of data flow transformations, citing points like it'll consume a lot of memory on the ETL box so we'd rather leave the processing to the DB box. Is this really advisable? Where's the balance between relying on GUI tools over executing a bunch of SQL scripts on your Integration package? And honestly, I'd like to avoid writing SQL queries as much as I can.

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  • Access Insert Query

    - by tecno
    Hi, I am using C# to write/read to an Access 2007 Database. The table is ID - AutoNumber [pkey] Fname - Text Lname - Text Address - Text The query string I Use is "Insert into TblMain (Fname,Lname,Address) Values ('"+fname+"','"+lname+"','"+adrs+"')" No errors are returned, the query executes but data is not added to the db. Inserting to table using which does not have an autonumber data column works perfectly. What am I missing?

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  • Logout solution (ASP.NET)

    - by Irgat
    I programmed a web site, prepared a login mechanism(via textbox, not Login tools), users want to logout, they click logout button. However, my problem is that if users don't click logout button or close web page or switch another one, How can I understand this situation? According my mechanism, when users logout ,in DB some insertion and delete operation are making. I also want to do this with closing page,switch another one. Thanks.

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  • Send comma delimited CSV through SFTP?

    - by JM4
    I am collecting registration information on my site and need to figure out how to pass all data stored in the MySQL DB (or just portions of it) as a comma delimited CSV file through an SFTP so our partners can access the information. The pages are built using PHP. I literally have no idea how to do this and am hoping somebody has experience doing so. Thanks ahead of time!

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  • Correct way to persist Quartz triggers

    - by davioooh
    I'm quite new to Quartz and now I need to schedule some jobs in Spring Web App. I know about Spring + Quartz integration (I'm using Spring v 3.1.1) but I'm wondering if it's the right way to follow. In particular I need to persist my scheduled tasks in a DB so I can re-initialize them when application is restarted. Are there some utilities provided by Spring scheduling wrapper to do this? Can you suggest me some "well known" approach to follow?

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  • json for iphone, download image

    - by alecnash
    I am using json touch to get some data from my server database and everything works fine but I've got a little problem. I have some images stored as longblob in the db and I can't download them to my iphone app. All I get is a 'null' array. Does anyone know why this is happening???

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  • where can i get Request.Browser.Platform items from ?

    - by eugeneK
    Hi, i want to have pre-made list of most common OSes in my DB and all non default to be listed as other. Problem is i don't know what OSes called in Request.Browser object. List i want to have WinXP, Vista, Win7, Linux, MacOS and other... Do any of you know what are exact names of these OSes in Request.Browser.Platform or where i can get list of values from ?

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  • How to Get a Specific Column Value from a DataTable? - C#.NET Winforms

    - by peace
    I have a datatable. I need to fetch a certain column value based on the user input. For example, lets say the datatable has two columns CountryID and CountryName. I need to find CountryID in the datatable based on the user input country name. I could just open a connection with DB and run the query select countryID from Country where countryName = @userinput. Is there anyway i could do this on the datatable. Thanks

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