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  • Archiving old, outdated hard drives

    - by Calvin
    I have a number of old hard drives. I've decided to throw them out. But before I do that, I'd like to keep the contents of hard drives, intact. I tried to use the ISO file format to archive but the major problem is that it loses file attributes and can't create directories with exceeding depth of 8 levels. I do have drives over a variety of file systems; FAT, NTFS, ext2, ext3 and HFS and I'd like to archive them without any loss of information.

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  • What kind of server do I need to handle 10 million requests and mySQL queries a day?

    - by Calvin
    I'm a new bie of server administration and I'm looking for a powerful hosting service to host my new website. This website is basically a back-end of an mobile online game, and it will: handle up to 10 million of HTTPS request and mySQL queries a day store up to 2000 GB file on the hard disk transfer probably 5000 GB data in and out per month it runs on PHP and mySQL have 10 million records in mySQL database, for each record there are 5-10 fields, around 100 bytes each I really don't know what kind of a server I need to handle these requirements, my question is: what cpu/ram do I need for a dedicated server or vps? what hosting companies are able to offer this kind of dedicated server or VPS? what about cloud computing? I've researched Amazon EC2 but it seems complicated to me. And I've contacted Rackspace but strangely they said Cloudsites is not suitable for my requirements. I wonder if there is other cloud hosting company. any other alternative method? thanks very much!

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  • Separate php.ini file for each Apache virtual host?

    - by Calvin L
    Is it possible to have a separate php.ini file that overrides the default php.ini file for each virtual host? I'm running Apache/2.2.14, PHP 5.3.2-1. For example I have several vhosts pointing to domains in my /var/www/ directory: /var/www/website1.com /var/www/website2.com What I'd like is to be able to place a custom php.ini file in each directory that would override the default values only for that vhost, but keep the original defaults if the value isn't specified: /var/www/website1.com/htdocs/ /var/www/website1.com/php.ini EDIT: I found more info on the topic here for those interested: http://serverfault.com/questions/34078/how-do-i-set-up-per-site-php-ini-files-on-a-lamp-server-using-namevirtualhosts

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  • placing shell script under systemd control

    - by Calvin Cheng
    Assuming I have a shell script like this:- #!/bin/sh # cherrypy_server.sh PROCESSES=10 THREADS=1 # threads per process BASE_PORT=3035 # the first port used # you need to make the PIDFILE dir and insure it has the right permissions PIDFILE="/var/run/cherrypy/myproject.pid" WORKDIR=`dirname "$0"` cd "$WORKDIR" cp_start_proc() { N=$1 P=$(( $BASE_PORT + $N - 1 )) ./manage.py runcpserver daemonize=1 port=$P pidfile="$PIDFILE-$N" threads=$THREADS request_queue_size=0 verbose=0 } cp_start() { for N in `seq 1 $PROCESSES`; do cp_start_proc $N done } cp_stop_proc() { N=$1 #[ -f "$PIDFILE-$N" ] && kill `cat "$PIDFILE-$N"` [ -f "$PIDFILE-$N" ] && ./manage.py runcpserver pidfile="$PIDFILE-$N" stop rm -f "$PIDFILE-$N" } cp_stop() { for N in `seq 1 $PROCESSES`; do cp_stop_proc $N done } cp_restart_proc() { N=$1 cp_stop_proc $N #sleep 1 cp_start_proc $N } cp_restart() { for N in `seq 1 $PROCESSES`; do cp_restart_proc $N done } case "$1" in "start") cp_start ;; "stop") cp_stop ;; "restart") cp_restart ;; *) "$@" ;; esac From the bash script, we can essentially do 3 things: start the cherrypy server by calling ./cherrypy_server.sh start stop the cherrypy server by calling ./cherrypy_server.sh stop restart the cherrypy server by calling ./cherrypy_server.sh restart How would I place this shell script under systemd's control as a cherrypy.service file (with the obvious goal of having systemd start up the cherrypy server when a machine has been rebooted)? Reference systemd service file example here - https://wiki.archlinux.org/index.php/Systemd#Using_service_file

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  • Sphinx 2.0.8 with Postgresql 9.2.4

    - by Calvin
    I want to install Sphinx 2.0.8 from source on CentOS 5.6 with PostgreSQL 9.2.4 my server type : Linux localhost.localdomain 2.6.18-348.6.1.el5 #1 SMP Tue May 21 15:29:55 EDT 2013 x86_64 x86_64 x86_64 GNU/Linux. First, i compile with : ./configure --prefix=/usr/local/sphinx --with-pgsql --without-mysql --with-pgsql-libs=/var/lib/pgsql/9.2/data/ --with-pgsql-includes=/usr/pgsql-9.2/include/ then it seems work, but after i run make errors appeared /usr/bin/ld: cannot find -lpq I have installed postgresql92-devel and libs also libpqxxx and worked with that error all day long but i am not solve that yet. Thanks for helping me.

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  • systemd: enabling cherokee service as a `unit file`

    - by Calvin Cheng
    So I am learning how to use systemd to initialize my services automatically on server reboot. So of course, I first make sure I have systemd and some optional systemd related packages installed. pacman -S systemd initscripts-systemd Installation seems to go well and checking, I can see that systemd and its dependency libsystemd are installed. And the optional package initscripts-systemd is also installed:- [root@li280-195 ~]# pacman -Ss systemd extra/libsystemd 44-5 [installed] systemd client libraries extra/systemd 44-5 [installed] system and service manager extra/systemd-sysvcompat 2-2 sysvinit compat symlinks for systemd community/initscripts-systemd 20120412-1 [installed] Arch specific systemd initialization/bootup scripts for systemd community/systemd-arch-units 20120412-2 Arch specific Systemd unit files Next, I ensure that systemd is loaded up when my server reboots, via grub in grub's /boot/grub/menu.lst file like this:- kernel /boot/vmlinuz root=/dev/xvda ro init=/bin/systemd Rebooting my server to check, all loads up well and I can check that systemd is operational via:- systemctl list-unit-files However, I don't see my cherokee initialization script (which is simply created at /etc/rc.d/cherokee when I installed cherokee earlier via pacman -S cherokee) being listed as one of my unit files. So the question is, how do I do that? How do I put my cherokee initialization script under systemd's control?

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  • FPS lags with new acer aspire 5755G

    - by Calvin
    The title is kind of self explanatory, as my new laptop lags and has FPS drops. For example my FPS in Starcraft 2 hovers around 20 and constantly drops to 1 with low settings when I know it should run smoothly in high settings. I've updated my Nvidia driver, and set the preferred global settings to the 'High-performance Nvidia processor'. Here are some screen shots. Screen Shot One - Screen Shot Two - Screen Shot Three I'm not sure how to fix this problem, any feed back would be nice!

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  • Scripting Windows Shares - VBS

    - by Calvin Piche
    So i am totally new to VBS, never used it. I am trying to create multiple shares and i found a Microsoft VBS script that can do this(http://gallery.technet.microsoft.com/scriptcenter/6309d93b-fcc3-4586-b102-a71415244712) My question is, this script only allows for one domain group or user to be added for permissions where i am needing to add a couple with different permissions(got that figured out) Below is the script that i have modified for my needs but just need to add in the second group with the other permissions. If there is an easier way to do this please let me know. 'ShareSetup.vbs '========================================================================== Option Explicit Const FILE_SHARE = 0 Const MAXIMUM_CONNECTIONS = 25 Dim strComputer Dim objWMIService Dim objNewShare strComputer = "." Set objWMIService = GetObject("winmgmts:" & "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2") Set objNewShare = objWMIService.Get("Win32_Share") Call sharesec ("C:\Published Apps\Logs01", "Logs01", "Log01", "Support") Call sharesec2 ("C:\Published Apps\Logs01", "Logs01", "Log01", "Domain Admins") Sub sharesec(Fname,shr,info,account) 'Fname = Folder path, shr = Share name, info = Share Description, account = account or group you are assigning share permissions to Dim FSO Dim Services Dim SecDescClass Dim SecDesc Dim Trustee Dim ACE Dim Share Dim InParam Dim Network Dim FolderName Dim AdminServer Dim ShareName FolderName = Fname AdminServer = "\\" & strComputer ShareName = shr Set Services = GetObject("WINMGMTS:{impersonationLevel=impersonate,(Security)}!" & AdminServer & "\ROOT\CIMV2") Set SecDescClass = Services.Get("Win32_SecurityDescriptor") Set SecDesc = SecDescClass.SpawnInstance_() 'Set Trustee = Services.Get("Win32_Trustee").SpawnInstance_ 'Trustee.Domain = Null 'Trustee.Name = "EVERYONE" 'Trustee.Properties_.Item("SID") = Array(1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0) Set Trustee = SetGroupTrustee("domain", account) 'Replace ACME with your domain name. 'To assign permissions to individual accounts use SetAccountTrustee rather than SetGroupTrustee Set ACE = Services.Get("Win32_Ace").SpawnInstance_ ACE.Properties_.Item("AccessMask") = 1179817 ACE.Properties_.Item("AceFlags") = 3 ACE.Properties_.Item("AceType") = 0 ACE.Properties_.Item("Trustee") = Trustee SecDesc.Properties_.Item("DACL") = Array(ACE) Set Share = Services.Get("Win32_Share") Set InParam = Share.Methods_("Create").InParameters.SpawnInstance_() InParam.Properties_.Item("Access") = SecDesc InParam.Properties_.Item("Description") = "Public Share" InParam.Properties_.Item("Name") = ShareName InParam.Properties_.Item("Path") = FolderName InParam.Properties_.Item("Type") = 0 Share.ExecMethod_ "Create", InParam End Sub Sub sharesec2(Fname,shr,info,account) 'Fname = Folder path, shr = Share name, info = Share Description, account = account or group you are assigning share permissions to Dim FSO Dim Services Dim SecDescClass Dim SecDesc Dim Trustee Dim ACE2 Dim Share Dim InParam Dim Network Dim FolderName Dim AdminServer Dim ShareName FolderName = Fname AdminServer = "\\" & strComputer ShareName = shr Set Services = GetObject("WINMGMTS:{impersonationLevel=impersonate,(Security)}!" & AdminServer & "\ROOT\CIMV2") Set SecDescClass = Services.Get("Win32_SecurityDescriptor") Set SecDesc = SecDescClass.SpawnInstance_() 'Set Trustee = Services.Get("Win32_Trustee").SpawnInstance_ 'Trustee.Domain = Null 'Trustee.Name = "EVERYONE" 'Trustee.Properties_.Item("SID") = Array(1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0) Set Trustee = SetGroupTrustee("domain", account) 'Replace ACME with your domain name. 'To assign permissions to individual accounts use SetAccountTrustee rather than SetGroupTrustee Set ACE2 = Services.Get("Win32_Ace").SpawnInstance_ ACE2.Properties_.Item("AccessMask") = 1179817 ACE2.Properties_.Item("AceFlags") = 3 ACE2.Properties_.Item("AceType") = 0 ACE2.Properties_.Item("Trustee") = Trustee SecDesc.Properties_.Item("DACL") = Array(ACE2) End Sub Function SetAccountTrustee(strDomain, strName) set objTrustee = getObject("Winmgmts: {impersonationlevel=impersonate}!root/cimv2:Win32_Trustee").Spawninstance_ set account = getObject("Winmgmts: {impersonationlevel=impersonate}!root/cimv2:Win32_Account.Name='" & strName & "',Domain='" & strDomain &"'") set accountSID = getObject("Winmgmts: {impersonationlevel=impersonate}!root/cimv2:Win32_SID.SID='" & account.SID &"'") objTrustee.Domain = strDomain objTrustee.Name = strName objTrustee.Properties_.item("SID") = accountSID.BinaryRepresentation set accountSID = nothing set account = nothing set SetAccountTrustee = objTrustee End Function Function SetGroupTrustee(strDomain, strName) Dim objTrustee Dim account Dim accountSID set objTrustee = getObject("Winmgmts: {impersonationlevel=impersonate}!root/cimv2:Win32_Trustee").Spawninstance_ set account = getObject("Winmgmts:{impersonationlevel=impersonate}!root/cimv2:Win32_Group.Name='" & strName & "',Domain='" & strDomain &"'") set accountSID = getObject("Winmgmts: {impersonationlevel=impersonate}!root/cimv2:Win32_SID.SID='" & account.SID &"'") objTrustee.Domain = strDomain objTrustee.Name = strName objTrustee.Properties_.item("SID") = accountSID.BinaryRepresentation set accountSID = nothing set account = nothing set SetGroupTrustee = objTrustee End Function

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  • how to know who is accessing my system?

    - by calvin
    Is it possible to know if anyone is accessing any of folders or drives in my system(32 bit windows 2003)? I mean shared folders or non-shared folders, anything. And once if we know, how to deny access to particular host. For shared folders i know how to do, but if anyone is accessing some folder with proper credentials, i don't know how to control. Please ignore cases like bit torrent etc. All i wanted to know is if anyone is accessing my system folders in this way \\10.30.188.231\d$\calvin_docs with some valid username and password. I wanted to know ip/username of system who is accessing

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  • New Executive Q&As on Oracle's Social Services Solution

    - by michael.seback
    According to Calvin Tu, Senior Director Product Management, for Oracle Public Sector, "Government organizations are experiencing unprecedented demand for social services--but many are hampered by..." Read more about the strategy. "They're going to love the ability to automate the prescreening process and eligibility determination, thanks to a natural-language rules engine that..." says John Garrison, Oracle Vice President For CRM Public Sector. Read the rest of the story.

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  • How to override C# DateTime serialization with class auto-generated from wsdl?

    - by Calvin Fisher
    I have a WSDL that the consumer of my web service expects will be adhered to strictly. I converted it into an interface with wsdl.exe and had my web service implement it. Except for this problem, I have been generally pleased with the results. A simple GetCurrentTime method will have the following response class generated from the WSDL in the interface definition: [System.CodeDobmCompiler.GeneratedCodeAttribute("wsdl", "2.0.50727.3038")] [System.SerializableAttribute()] [System.Diagnostics.DebuggerStepThroughAttribute()] [System.ComponentModel.DesignerCategoryAttribute("code")] [System.Xml.Serialization.XmlTypeAttribute(Namespace="[Client Namespace]")] public partial class GetCurrentTimeResponse { private System.DateTime timeStampField; [System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified] public System.DateTime TimeStamp{ // [accesses timeStampField] } } When I put the response data into the automatically generated response class, it gets serialized into an appropriate XML response. (Most of the web methods have much more complicated return types with multiple levels of arrays.) The problem is that the default serialization of DateTime objects violates one of the requirements in the WSDL: ... <xsd:simpleType name="SearchTimeStamp"> <xsd:restriction base="xsd:dateTime"> <xsd:pattern value="[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}(.[0-9]{1,7})?Z"> </xsd:restriction> </xsd:simpleType> ... Note the last part of the pattern where subseconds must be either 1 or 7 characters if they are included. The client seems to be rejecting the response because it does not match that requirement. The main issue is that when .NET serializes a DateTime object, it omits all trailing zeroes, meaning the resulting subsecond value varies in length. (e.g., "12:34:56.700" gets serialized as "<TimeStamp>12:34:56:7</TimeStamp>" by default). We use millisecond precision, so I need all timestamps to format with 7 subsecond digits in order to be compliant with the WSDL. It would be easy if I could specify a format string, but I'm not sure how to control the string that the DateTime object uses to serialize to XML, or to otherwise override the serialization behavior. How do I do this? Keeping in mind the following... I would like to modify the generated code as little as possible... preferably not at all if the change can be made through a partial class or inherited class. Using an inherited class for the return type of the web method will cause the web service to no longer implement the auto-generated interface. The TimeStamp type occurs in other, more complex response types. So, manually overriding the entire serialization process may be prohibitively time-consuming.

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  • UISearchBar and UINavigationController

    - by Calvin L
    I have an .xib file connected to a ViewController, which is init'ed as the root controller of an instance of UINavigationController in my appDelegate. In that view, I have a UISearchBar and a UITableView below it. When the view loads up, there's a navigationBar at the top, followed by a ~20 pixel gap, and then the UISearchBar, and the table beneath it: My problem is that when I enter the UISearchBar to type something, the navigation bar disappears (which is fine), but the search box is all screwy: I'm pretty new to this (a couple of weeks), so I'm not quite sure what's going on. Can anyone help me shed some light on this?

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  • Oracle command hangs when using view for "WHERE x IN..." subquery

    - by Calvin Fisher
    I'm working on a web service that fetches data from an oracle data source in chunks and passes it back to an indexing/search tool in XML format. I'm the C#/.NET guy, and am kind of fuzzy on parts of Oracle. Our Oracle team gave us the following script to run, and it works well: SELECT ROWID, [columns] FROM [table] WHERE ROWID IN ( SELECT ROWID FROM ( SELECT ROWID FROM [table] WHERE ROWID > '[previous_batch_last_rowid]' ORDER BY ROWID ) WHERE ROWNUM <= 10000 ) ORDER BY ROWID 10,000 rows is an arbitrary but reasonable chunk size and ROWID is sufficiently unique for our purposes to use as a UID since each indexing run hits only one table at a time. Bracketed values are filled in programmatically by the web service. Now we're going to start adding views to the indexing, each of which will union a few separate tables. Since ROWID would no longer function as a unique identifier, they added a column to the views (VIEW_UNIQUE_ID) that concatenates the ROWIDs from the component tables to construct a UID for each union. But this script does not work, even though it follows the same form as the previous one: SELECT VIEW_UNIQUE_ID, [columns] FROM [view] WHERE VIEW_UNIQUE_ID IN ( SELECT VIEW_UNIQUE_ID FROM ( SELECT VIEW_UNIQUE_ID FROM [view] WHERE ROWID > '[previous_batch_last_view_unique_id]' ORDER BY VIEW_UNIQUE_ID ) WHERE ROWNUM <= 10000 ) ORDER BY VIEW_UNIQUE_ID It hangs indefinitely with no response from the Oracle server. I've waited 20+ minutes and the SQLTools dialog box indicating a running query remains the same, with no progress or updates. I've tested each subquery independently and each works fine and takes a very short amount of time (<= 1 second), so the view itself is sound. But as soon as the inner two SELECT queries are added with "WHERE VIEW_UNIQUE_ID IN...", it hangs. Why doesn't this query work for views? In what important way are they not interchangeable here?

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  • Grep / RegExp help

    - by Calvin
    Hi everyone! I apologize if this is a really stupid question. I have data in the format: etc etc etc <span>etc etc etc</span> etc etc etc etc etc etc <span>etc etc etc</span> etc etc etc etc etc etc <span>etc etc etc</span> etc etc etc Is there a way to grep each line for a match that falls outside of the span tags?

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  • Separate php.ini file for each Apache virtual host?

    - by Calvin L
    Is it possible to have a separate php.ini file that overrides the default php.ini file for each virtual host? I'm running Apache/2.2.14, PHP 5.3.2-1. For example I have several vhosts pointing to domains in my /var/www/ directory: /var/www/website1.com /var/www/website2.com What I'd like is to be able to place a custom php.ini file in each directory that would override the default values only for that vhost, but keep the original defaults if the value isn't specified: /var/www/website1.com/htdocs/ /var/www/website1.com/php.ini

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  • Can't resignFirstResponder with UITextView

    - by Calvin L
    I have a UITextView. I implemented a navigationBar UIBarButtonItem to respond to a touch and resign the firstResponder for my UITextView. But, when the selector method is called, the keyboard doesn't get dismissed. I checked the UITextView's responder status with isFirstResponder and it returns YES. I also checked it with canResignFirstResponder and the return value is NO. I must be missing something here...why is it returning NO? I get that I can override canResignFirstResponder by subclassing UITextView, but I'd like to avoid that if possible. Here's a code snippet: - (void) commentCancelButtonTouched:(id)sender { NSLog(@"Cancel button touched"); [self.navigationBar popNavigationItemAnimated: NO]; if ([self.textInput.textView canResignFirstResponder] == NO) { NSLog(@"I don't want to resign!"); } [self.textInput.textView resignFirstResponder]; }

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  • UITableViewCell is 1px shorter in didSelectRowAtIndexPath than cellForRowAtIndexPath

    - by Calvin L
    I have a UITableViewCell that I create in tableView:cellForRowAtIndexPath:. In that method I call: UITableViewCell *cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:nil] autorelease]; NSLog(@"Cell height: %f", cell.contentView.frame.size.height); This gives me a return value of 44.000000. Then in my tableView:didSelectRowAtIndexPath: method, I call: UITableViewCell *cell = [tableView cellForRowAtIndexPath: indexPath]; NSLog(@"Cell height: %f", cell.contentView.frame.size.height); And this gives me a return value of 43.000000. Aren't they the same cell? What gives?

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  • how to know who is accessing my system? [closed]

    - by calvin
    Is it possible to know if anyone is accessing any of folders or drives in my system(32 bit windows 2003)? I mean shared folders or non-shared folders, anything. And once if we know, how to deny access to particular host. For shared folders i know how to do, but if anyone is accessing some folder with proper credentials, i don't know how to control.

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  • NHibernate stored procedure problem

    - by Calvin
    I'm having a hard time trying to get my stored procedure works with NHibernate. The data returned from the SP does not correspond to any database table. This is my mapping file: <?xml version="1.0" encoding="utf-8" ?> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="DomainModel" namespace="DomainModel.Entities"> <sql-query name="DoSomething"> <return class="SomeClass"> <return-property name="ID" column="ID"/> </return> exec [dbo].[sp_doSomething] </sql-query> </hibernate-mapping> Here is my domain class: namespace DomainModel.Entities { public class SomeClass { public SomeClass() { } public virtual Guid ID { get; set; } } } When I run the code, it fails with Exception Details: NHibernate.HibernateException: Errors in named queries: {DoSomething} at line 80 Line 78: config.Configure(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "NHibernate.config")); Line 79: Line 80: g_sessionFactory = config.BuildSessionFactory(); When I debug into NHibernate code, it seems that SomeClass is not added to the persister dictionary because there isn't a class mapping (only sql-query) defined in hbm.xml. And later on in CheckNamedQueries function, it is not able to find the persistor for SomeClass. I've checked all the obvious things (e.g. make hbm as an embedded resource) and my code isn't too much different from other samples I found on the web, but somehow I just can't get it working. Any idea how I can resolve this issue?

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  • Can I create a custom class that inherits from a strongly typed DataRow?

    - by Calvin Fisher
    I'm working on a huge, old project with a lot of brittle code, some of which has been around since the .NET 1.0 era, and it has been and will be worked on by other people... so I'd like to change as little as possible. I have one project in my solution that contains DataSet.xsd. This project compiles to a separate assembly (Data.dll). The database schema includes several tables arranged more or less hierarchically, but the only way the tables are actually linked together is through joins. I can get, e.g. DepartmentRow and EmployeeRow objects from the autogenerated code. EmployeeRow contains information from the employee's corresponding DepartmentRow through a join. I'm making a new report to view multiple departments and all their employees. If I use the existing data access scheme, all I will be able to get is a spreadsheet-like output where each employee is represented on one line, with department information repeated over and over in its appropriate columns. E.g.: Department1...Employee1... Department1...Employee2... Department2...Employee3... But what the customer would like is to have each department render like a heading, with a list of employees beneath each. E.g.: - Department1... Employee1... Employee2... + Department2... I'm trying to do this by inheriting hierarchical objects from the autogenerated Row objects. E.g.: public class Department : DataSet.DepartmentRow { public List<Employee> Employees; } That way I could nest the data in the report by using a collection of Department objects as the DataSource, each of which will put its list of Employees in a subreport. The problem is that this gives me a The type Data.DataSet.DepartmentRow has no constructors defined error. And when I try to make a constructor, e.g. public class Department : DataSet.DepartmentRow { private Department() { } public List<Employee> Employees; } I get a 'Data.DataSet.DepartmentRow(System.Data.DataRowBuilder)' is inaccessible due to its protection level. error in addition to the first one. Is there a way to accomplish what I'm trying to do? Or is there something else I should be trying entirely?

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  • Changing a view after modalViewController is dismissed (Cocoa Touch)

    - by Calvin L
    I have a viewController that presents a modalViewController when a UINavigationBarItem is touched. After the user is done with the modal view, the modalViewController is dismissed. At this point I want to change/remove the NavigationBarItem -- how would I accomplish this? I was thinking of using viewWillAppear: but I only want the change to happen when the modalViewController is dismissed.

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  • Oracle command hangs when using view for "WHILE x IN..." subquery

    - by Calvin Fisher
    I'm working on a web service that fetches data from an oracle data source in chunks and passes it back to an indexing/search tool in XML format. I'm the C#/.NET guy, and am kind of fuzzy on parts of Oracle. Our Oracle team gave us the following script to run, and it works well: SELECT ROWID, [columns] FROM [table] WHERE ROWID IN ( SELECT ROWID FROM ( SELECT ROWID FROM [table] WHERE ROWID > '[previous_batch_last_rowid]' ORDER BY ROWID ) WHERE ROWNUM <= 10000 ) ORDER BY ROWID 10,000 rows is an arbitrary but reasonable chunk size and ROWID is sufficiently unique for our purposes to use as a UID since each indexing run hits only one table at a time. Bracketed values are filled in programmatically by the web service. Now we're going to start adding views to the indexing, each of which will union a few separate tables. Since ROWID would no longer function as a unique identifier, they added a column to the views (VIEW_UNIQUE_ID) that concatenates the ROWIDs from the component tables to construct a UID for each union. But this script does not work, even though it follows the same form as the previous one: SELECT VIEW_UNIQUE_ID, [columns] FROM [view] WHERE VIEW_UNIQUE_ID IN ( SELECT VIEW_UNIQUE_ID FROM ( SELECT VIEW_UNIQUE_ID FROM [view] WHERE ROWID > '[previous_batch_last_view_unique_id]' ORDER BY VIEW_UNIQUE_ID ) WHERE ROWNUM <= 10000 ) ORDER BY VIEW_UNIQUE_ID It hangs indefinitely with no response from the Oracle server. I've waited 20+ minutes and the SQLTools dialog box indicating a running query remains the same, with no progress or updates. I've tested each subquery independently and each works fine and takes a very short amount of time (<= 1 second), so the view itself is sound. But as soon as the inner two SELECT queries are added with "WHERE VIEW_UNIQUE_ID IN...", it hangs. Why doesn't this query work for views? In what important way are they not interchangeable here?

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  • subversion problem - commit access

    - by Calvin
    Hi everyone, I'm new to setting up subversion but originally when I made a repository, all my team members could update and commit without problem. There was a problem with it so we decided to recreate it, but now only I can commit changes to it. And my username/password doesn't work on their computers, so I'm sure it's something obvious and silly, but I just don't know enough to know what's causing it. The passwd and svnserve.conf files are the same as the original repository that worked for everyone. Any ideas? Thanks in advance.

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