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• iPhone: Activate UISlider and set its value to the location of the current touch programatically

  - by carloe

  Is it possible to set an UISlider as first responder and set its current value to the location of the current touch programatically? The way my app is set up I have a UIView container that takes up the whole screen. Inside the container I have another UIView offscreen at the bottom edge (I'll call this bottomBar). Inside the bottomBar there is a UISlider element. Right now, when the user swipes along the bottom edge of the screen the bottomBar the slider it contains slide up. What I am trying to achieve is to activate the UISlider, and set the position of the slider (the value) to the position of the users touch. Is this possible? Could someone please point me in the right direction?

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• How powerful is the <script> tag in ASP.NET ?

  - by MarceloRamires

  I'm new at web development with .NET, and I'm currently studying a page where I have both separated codebehinds (in my case, a .CS file associated to the ASPX file), and codebehind that is inside the ASPX file inside tags like this: <script runat="server"> //code </script> Q1:What is the main difference (besides logical matters like organization, readability and ETC), what could be done in one way that could not be done in another? What is each mode best suited for ? Q2:If I'm going to develop a simple page with database connection, library imports, access to controls (ascx) and image access in other folders.. which method should I choose ?

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• php curly braces groups

  - by David

  is there a function or regex or anything to group items by a { and } tag? so it should group items by the opening tag { and the closing tag }. but be careful, there are also groups inside parent groups like so: group { text1 group2 { text2 } } so basically think of it like php, you make an opening tag, you need to close it with a closing tag, curly braces in php's case. i just need it to like substr() each group into an associative array somehow, except I cant figure it out with the whole, "group inside a parent group".

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• How to solve rake tasks deprecation on the rails plugin?

  - by Dida

  Because of the concept introduced in here, Rails::Plugin is nothing more than a Rails::Engine, but since it's loaded too late in the boot process, it does not have the same configuration powers as a bare Rails::Engine. Opposite to Rails::Railtie and Rails::Engine, you are not supposed to inherit from Rails::Plugin. Rails::Plugin is automatically configured to be an engine by simply placing inside vendor/plugins. Since this is done automatically, you actually cannot declare a Rails::Engine inside your Plugin, otherwise it would cause the same files to be loaded twice. This means that if you want to ship an Engine as gem it cannot be used as plugin and vice-versa. Besides this conceptual difference, the only difference between Rails::Engine and Rails::Plugin is that plugins automatically load the file "init.rb" at the plugin root during the boot process. rake tasks in the rails plugins are deprecated and it is advised to use lib/tasks instead. How to solve this? Can I just simply move the plugin's tasks to the lib/tasks?

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• How to put Google Adsense in GWT

  - by Thiago Diniz

  Do anyone know how to put Google adsense ads inside a GWT web application?

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• add ms ajax accordion pane at runtime loses previous pane issue

  - by Chris Conway

  I have an AjaxControlToolkit accordion control that i'm trying to load panes at runtime. When I click a button inside a listview, it should add a new pane to the accordion control. Here is the code that adds the pane in the onitemcommand event within the listview var pane = new AccordionPane { ID = key }; pane.HeaderContainer.Controls.Add(new LiteralControl(label.Text)); pane.ContentContainer.Controls.Add(LoadControl("~/UserControls/Covers/" + e.CommandArgument + ".ascx")); accordion.Panes.Add(pane); And this will successfully show a webcontrol inside the accordion control. But when I click on another button in the listview, the accordion is reset and it only shows the new pane instead of appending a new pane. Is there any way to keep the previous pane visible across postbacks like this? By the way, each of the webcontrols that are loaded in the accordion have input fields that will need to be persisted across postbacks as well. thanks!

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• How to propagate spring security login to EJBs?

  - by tangens

  Context I have a J2EE application running on a JBoss 4.2.3 application server. The application is reachabe through a web interface. The authentication is done with basic authentication. Inside of the EJBs I ask the security context of the bean for the principal (the name of the logged in user) and do some authorization checks if this user is allowed to access this method of the EJB. The EJBs life inside a different ear than the servlets handling the web frontend, so I can't access the spring application context directly. Required change I want to switch to Spring Security for handling the user login. Question How can I propagate the spring login information to the JBoss security context so I can still use my EJBs without having to rewrite them? Ideas and links I already found a page talking about "Propagating Identity from Spring Security to the EJB Layer", but unfortunatelly it refers to an older version of Spring Security (Acegi) and I'm not familiar enough with Spring Security to make this work with the actual version (3.0.2).

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• Refferenced by projects .net 4.0 assemblies have no IL. How? and What for?

  - by er-v

  There is something I don't understand. Today I desided to find out what is inside Sistem.Web.dll version 4.0.0.0 So I decided to find the place where this assembly located. and opened this assembly with reflector - all methods were empty - and then with ilDasm from 7.0 SDK. This what I saw After some research I've found fullfeatured assemblies in gac. Actualy here C:\Windows\assembly\NativeImages_v4.0.30319_32\System.Web\82087f17d3b3f9c493e7261d608a6af4 They are much larger in size. So why does references goes not to the gac, but to the C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework.NETFramework\v4.0\ Why don't they have IL inside? How does it works? Mabe I don't understand something.

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• Mac OSX and root login enabled

  - by reza

  All I am running OSX 10.6.8 I have enabled root login through Directory Utility. I have assigned a password. I get an error when I try to ssh root@localhost. ssh -v root@localhost OpenSSH_5.2p1, OpenSSL 0.9.8r 8 Feb 2011 debug1: Reading configuration data /Users/rrazavipour-lp/.ssh/config debug1: Reading configuration data /etc/ssh_config debug1: Connecting to localhost [127.0.0.1] port 22. debug1: Connection established. debug1: identity file /Users/rrazavipour-lp/.ssh/identity type -1 debug1: identity file /Users/rrazavipour-lp/.ssh/id_rsa type 1 debug1: identity file /Users/rrazavipour-lp/.ssh/id_dsa type 2 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.2 debug1: match: OpenSSH_5.2 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.2 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5 none debug1: kex: client->server aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Host 'localhost' is known and matches the RSA host key. debug1: Found key in /Users/rrazavipour-lp/.ssh/known_hosts:47 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,keyboard-interactive debug1: Next authentication method: publickey debug1: Offering public key: /Users/rrazavipour-lp/.ssh/id_dsa debug1: Authentications that can continue: publickey,keyboard-interactive debug1: Trying private key: /Users/rrazavipour-lp/.ssh/identity debug1: Offering public key: /Users/rrazavipour-lp/.ssh/id_rsa debug1: Authentications that can continue: publickey,keyboard-interactive debug1: Next authentication method: keyboard-interactive Password: debug1: Authentications that can continue: publickey,keyboard-interactive debug1: Authentications that can continue: publickey,keyboard-interactive debug1: Authentications that can continue: publickey,keyboard-interactive debug1: No more authentication methods to try. Permission denied (publickey,keyboard-interactive). What I am doing wrong? I know I have the password correct.

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• SSH login very slow on OS X Leopard

  - by acjohnson55

  My SSH sessions take a very long time to initiate. This applies for logins with and without passwords, interactive and non-interactive. I have tried setting 'GSSAPIAuthentication no' and 'IPQoS 0x00' on the client side, and 'UseDNS no' on the server side, but no dice. I'm really stumped and frustrated. The worst part is that it SFTP takes forever to establish connections too, making file transfer much longer than it would be otherwise. I thought the problem might be something with PAM, because of where the hang is in the sshd log below, so I tried commenting out each line one-by-one in the /etc/pam.d/sshd file. Some caused login to be impossible, some had no apparent effect. I can't really tell if PAM is stalling for other services, but I can say that su'ing into my account from another account with 'su -l' has no apparent delay. I tried creating a new user account, just to see if there was something wrong with my existing account, and the same problem persisted. Any ideas of what's going on? On the client side, the most verbose mode outputs (redacted where reasonable): OpenSSH_5.9p1, OpenSSL 0.9.8r 8 Feb 2011 debug1: Reading configuration data ... debug1: ... line 1: Applying options for ... debug1: Reading configuration data /etc/ssh_config debug1: /etc/ssh_config line 20: Applying options for * debug1: /etc/ssh_config line 53: Applying options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to ... [x.x.x.x] port 22. debug1: Connection established. debug1: identity file /.../.ssh/id_rsa type -1 debug1: identity file /.../.ssh/id_rsa-cert type -1 debug3: Incorrect RSA1 identifier debug3: Could not load "/.../.ssh/id_dsa" as a RSA1 public key debug1: identity file /.../.ssh/id_dsa type 2 debug1: identity file /.../.ssh/id_dsa-cert type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.2 debug1: match: OpenSSH_5.2 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.9 debug2: fd 3 setting O_NONBLOCK debug3: load_hostkeys: loading entries for host "..." from file "/.../.ssh/known_hosts" debug3: load_hostkeys: found key type RSA in file /.../.ssh/known_hosts:9 debug3: load_hostkeys: loaded 1 keys debug3: order_hostkeyalgs: prefer hostkeyalgs: [email protected],[email protected],ssh-rsa debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: [email protected],[email protected],ssh-rsa,[email protected],[email protected],ssh-dss debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,[email protected],zlib debug2: kex_parse_kexinit: none,[email protected],zlib debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,[email protected] debug2: kex_parse_kexinit: none,[email protected] debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: mac_setup: found hmac-md5 debug1: kex: server->client aes128-ctr hmac-md5 none debug2: mac_setup: found hmac-md5 debug1: kex: client->server aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug2: dh_gen_key: priv key bits set: 136/256 debug2: bits set: 523/1024 debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Server host key: RSA ... debug3: load_hostkeys: loading entries for host "..." from file "/.../.ssh/known_hosts" debug3: load_hostkeys: found key type RSA in file /.../.ssh/known_hosts:9 debug3: load_hostkeys: loaded 1 keys debug3: load_hostkeys: loading entries for host "x.x.x.x" from file "/.../.ssh/known_hosts" debug3: load_hostkeys: found key type RSA in file /.../.ssh/known_hosts:9 debug3: load_hostkeys: loaded 1 keys debug1: Host '...' is known and matches the RSA host key. debug1: Found key in /.../.ssh/known_hosts:9 debug2: bits set: 492/1024 debug1: ssh_rsa_verify: signature correct debug2: kex_derive_keys debug2: set_newkeys: mode 1 debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug2: set_newkeys: mode 0 debug1: SSH2_MSG_NEWKEYS received debug1: Roaming not allowed by server debug1: SSH2_MSG_SERVICE_REQUEST sent debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug2: key: /.../.ssh/id_dsa (0x7f8b7b41d6c0) debug2: key: /.../.ssh/id_rsa (0x0) debug1: Authentications that can continue: publickey,password,keyboard-interactive debug3: start over, passed a different list publickey,password,keyboard-interactive debug3: preferred publickey,keyboard-interactive,password debug3: authmethod_lookup publickey debug3: remaining preferred: keyboard-interactive,password debug3: authmethod_is_enabled publickey debug1: Next authentication method: publickey debug1: Offering DSA public key: /.../.ssh/id_dsa debug3: send_pubkey_test debug2: we sent a publickey packet, wait for reply debug1: Server accepts key: pkalg ssh-dss blen 434 debug2: input_userauth_pk_ok: fp ... debug3: sign_and_send_pubkey: DSA ... debug1: Authentication succeeded (publickey). Authenticated to ... ([x.x.x.x]:22). debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Requesting [email protected] debug1: Entering interactive session. ****** Hangs here ****** debug2: callback start debug2: client_session2_setup: id 0 debug2: fd 3 setting TCP_NODELAY debug2: channel 0: request pty-req confirm 1 debug1: Sending environment. debug3: Ignored env TERM_PROGRAM debug3: Ignored env SHELL debug3: Ignored env TERM debug3: Ignored env TMPDIR debug3: Ignored env Apple_PubSub_Socket_Render debug3: Ignored env TERM_PROGRAM_VERSION debug3: Ignored env TERM_SESSION_ID debug3: Ignored env USER debug3: Ignored env COMMAND_MODE debug3: Ignored env SSH_AUTH_SOCK debug3: Ignored env Apple_Ubiquity_Message debug3: Ignored env __CF_USER_TEXT_ENCODING debug3: Ignored env PATH debug3: Ignored env MKL_NUM_THREADS debug3: Ignored env PWD debug1: Sending env LANG = en_US.UTF-8 debug2: channel 0: request env confirm 0 debug3: Ignored env HOME debug3: Ignored env SHLVL debug3: Ignored env DYLD_LIBRARY_PATH debug3: Ignored env PYTHONPATH debug3: Ignored env LOGNAME debug3: Ignored env DISPLAY debug3: Ignored env SECURITYSESSIONID debug3: Ignored env _ debug2: channel 0: request shell confirm 1 debug2: callback done debug2: channel 0: open confirm rwindow 0 rmax 32768 debug2: channel_input_status_confirm: type 99 id 0 debug2: PTY allocation request accepted on channel 0 debug2: channel 0: rcvd adjust 2097152 debug2: channel_input_status_confirm: type 99 id 0 debug2: shell request accepted on channel 0 On the server side, the debug output looks like: Sep 16 18:46:40 ... sshd[31435]: debug1: inetd sockets after dupping: 3, 4 Sep 16 18:46:40 ... sshd[31435]: Connection from x.x.x.x port 52758 Sep 16 18:46:40 ... sshd[31435]: debug1: Current Session ID is 56AC0FB0 / Session Attributes are 00008000 Sep 16 18:46:40 ... sshd[31435]: debug1: Running in inetd mode in a non-root session... assuming inetd created the session for us. Sep 16 18:46:40 ... sshd[31435]: debug1: Client protocol version 2.0; client software version OpenSSH_5.9 Sep 16 18:46:40 ... sshd[31435]: debug1: match: OpenSSH_5.9 pat OpenSSH* Sep 16 18:46:40 ... sshd[31435]: debug1: Enabling compatibility mode for protocol 2.0 Sep 16 18:46:40 ... sshd[31435]: debug1: Local version string SSH-2.0-OpenSSH_5.2 Sep 16 18:46:40 ... sshd[31435]: debug1: Checking with Service ACLs for ssh login restrictions Sep 16 18:46:40 ... sshd[31435]: debug1: call to mbr_user_name_to_uuid with <...> suceeded to retrieve user_uuid Sep 16 18:46:40 ... sshd[31435]: debug1: Call to mbr_check_service_membership failed with status <0> Sep 16 18:46:40 ... sshd[31435]: debug1: PAM: initializing for "..." Sep 16 18:46:40 ... sshd[31435]: debug1: PAM: setting PAM_RHOST to "x.x.x.x" Sep 16 18:46:40 ... sshd[31435]: Failed none for ... from x.x.x.x port 52758 ssh2 Sep 16 18:46:40 ... sshd[31435]: debug1: temporarily_use_uid: 509/20 (e=0/0) Sep 16 18:46:40 ... sshd[31435]: debug1: trying public key file /.../.ssh/authorized_keys Sep 16 18:46:40 ... sshd[31435]: debug1: restore_uid: 0/0 Sep 16 18:46:40 ... sshd[31435]: debug1: temporarily_use_uid: 509/20 (e=0/0) Sep 16 18:46:40 ... sshd[31435]: debug1: trying public key file /.../.ssh/authorized_keys2 Sep 16 18:46:40 ... sshd[31435]: debug1: fd 5 clearing O_NONBLOCK Sep 16 18:46:40 ... sshd[31435]: debug1: matching key found: file /.../.ssh/authorized_keys2, line 1 Sep 16 18:46:40 ... sshd[31435]: Found matching DSA key: ... Sep 16 18:46:40 ... sshd[31435]: debug1: restore_uid: 0/0 Sep 16 18:46:40 ... sshd[31435]: debug1: temporarily_use_uid: 509/20 (e=0/0) Sep 16 18:46:40 ... sshd[31435]: debug1: trying public key file /.../.ssh/authorized_keys Sep 16 18:46:40 ... sshd[31435]: debug1: restore_uid: 0/0 Sep 16 18:46:40 ... sshd[31435]: debug1: temporarily_use_uid: 509/20 (e=0/0) Sep 16 18:46:40 ... sshd[31435]: debug1: trying public key file /.../.ssh/authorized_keys2 Sep 16 18:46:40 ... sshd[31435]: debug1: fd 5 clearing O_NONBLOCK Sep 16 18:46:40 ... sshd[31435]: debug1: matching key found: file /.../.ssh/authorized_keys2, line 1 Sep 16 18:46:40 ... sshd[31435]: Found matching DSA key: ... Sep 16 18:46:40 ... sshd[31435]: debug1: restore_uid: 0/0 Sep 16 18:46:40 ... sshd[31435]: debug1: ssh_dss_verify: signature correct Sep 16 18:46:40 ... sshd[31435]: debug1: do_pam_account: called Sep 16 18:46:40 ... sshd[31435]: Accepted publickey for ... from x.x.x.x port 52758 ssh2 Sep 16 18:46:40 ... sshd[31435]: debug1: monitor_child_preauth: ... has been authenticated by privileged process Sep 16 18:46:40 ... sshd[31435]: debug1: PAM: establishing credentials ***** Hangs here ***** Sep 16 18:46:54 ... sshd[31435]: User child is on pid 31654 Sep 16 18:46:54 ... sshd[31654]: debug1: PAM: establishing credentials Sep 16 18:46:54 ... sshd[31654]: debug1: permanently_set_uid: 509/20 Sep 16 18:46:54 ... sshd[31654]: debug1: Entering interactive session for SSH2. Sep 16 18:46:54 ... sshd[31654]: debug1: server_init_dispatch_20 Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_channel_open: ctype session rchan 0 win 1048576 max 16384 Sep 16 18:46:54 ... sshd[31654]: debug1: input_session_request Sep 16 18:46:54 ... sshd[31654]: debug1: channel 0: new [server-session] Sep 16 18:46:54 ... sshd[31654]: debug1: session_new: session 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_open: channel 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_open: session 0: link with channel 0 Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_channel_open: confirm session Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_global_request: rtype [email protected] want_reply 0 Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_channel_req: channel 0 request pty-req reply 1 Sep 16 18:46:54 ... sshd[31654]: debug1: session_by_channel: session 0 channel 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_input_channel_req: session 0 req pty-req Sep 16 18:46:54 ... sshd[31654]: debug1: Allocating pty. Sep 16 18:46:54 ... sshd[31435]: debug1: session_new: session 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_pty_req: session 0 alloc /dev/ttys008 Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_channel_req: channel 0 request env reply 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_by_channel: session 0 channel 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_input_channel_req: session 0 req env Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_channel_req: channel 0 request shell reply 1 Sep 16 18:46:54 ... sshd[31654]: debug1: session_by_channel: session 0 channel 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_input_channel_req: session 0 req shell Sep 16 18:46:54 ... sshd[31655]: debug1: Setting controlling tty using TIOCSCTTY.

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• How to programmatically bind to a Core Data model?

  - by Dave Gallagher

  Hello. I have a Core Data model, and was wondering if you know how to create a binding to an Entity, programmatically? Normally you use bind:toObject:withKeyPath:options: to create a binding. But I'm having a little difficulty getting this to work with Core Data, and couldn't find anything in Apple's docs regarding doing this programmatically. The Core Data model is simple: An Entity called Book An Attribute of Book called author (NSString) I have an object called BookController. It looks like so: @interface BookController : NSObject { NSString *anAuthor; } @property (nonatomic, retain) NSString *anAuthor; // @synthesize anAuthor; inside @implementation I'd like to bind anAuthor inside BookController, to author inside a Book entity. This is how I'm attempting to wrongly do it (it partially works): // A custom class I made, providing an interface to the Core Data database CoreData *db = [[CoreData alloc] init]; // Creating a Book entity, saving it [db addMocObject:@"Book"]; [db saveMoc]; // Fetching the Book entity we just created NSArray *books = [db fetchObjectsForEntity:@"Book" withPredicate:nil withSortDescriptors:nil]; NSManagedObject *book = [books objectAtIndex:0]; // Creating the binding BookController *bookController = [[BookController alloc] init]; [bookController bind:@"anAuthor" toObject:book withKeyPath:@"author" options:nil]; // Manipulating the binding [bookController setAnAuthor:@"Bill Gates"]; Now, when updating from the perspective of bookController, things don't work quite right: // Testing the binding from the bookController's perspective [bookController setAnAuthor:@"Bill Gates"]; // Prints: "bookController's anAuthor: Bill Gates" NSLog(@"bookController's anAuthor: %@", [bookController anAuthor]); // OK! // ERROR HERE - Prints: "bookController's anAuthor: (null)" NSLog(@"Book's author: %@", [book valueForKey:@"author"]); // DOES NOT WORK! :( When updating from the perspective of the Book entity, things work fine: // ------------------------------ // Testing the binding from the Book's (Entity) perspective (this works perfect) [book setValue:@"Steve Jobs" forKey:@"author"]; // Prints: "bookController's anAuthor: Steve Jobs" NSLog(@"bookController's anAuthor: %@", [bookController anAuthor]); // OK! // Prints: "bookController's anAuthor: Steve Jobs" NSLog(@"Book's author: %@", [book valueForKey:@"author"]); // OK! It appears that the binding is partially working. I can update it on the side of the Model and it propagates up to the Controller via KVO, but if I update it on the side of the Controller, it doesn't trickle down to the Model via KVC. Any idea on what I'm doing wrong? Thanks so much for looking! :)

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• How do I replace jQueryUI button text?

  - by Andrei Railean

  I've got a button that I use with jQueryUI somethink like this (simplified). <button id="mybutton">Play<button> <script> $("#mybutton").button().toggle( function(){ $(this).text('Stop'); }, function(){ $(this).text('Start'); }, ); </script> This code breaks the way the button looks because when making it into the button widget, there's a new span added inside the button. So I'm changing the button value like this now $(this).find('span').text('Stop'); This is hacky because I can't treat the button as a black box anymore and have to go inside. Is there a clean way to do this?

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• Is there some smart way of customizing ajax message text in jQuery?

  - by Fedor

  I have tons of ajax components on this booking engine. I need to customize the text inside of the modal for each of the components to suite. I added: $('#loader').bind('ajaxStart', function() { $(this).show().addClass('modalOpen'); }).bind('ajaxComplete', function() { $(this).removeClass('modalOpen').hide() }); Is there some advanced way of changing the text inside of the loading element before I do separate .ajax calls? Or do I just have to manually do something like $('#loader').text('blah'); $.ajax({}) Furthermore, this may sound silly but is there a way to not have the loader show up for certain components? If not I imagine I'll have to do something like $('someel').someEvent(function() { $('#loader').addClass('override-hide'); $.ajax({ success:function() { $('#loader').removeClass('override-hide'); } }) }) #loader.override-hide { display:none !important; }

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• How to use strange characters in a query string

  - by peter

  I am using silverlight / ASP .NET and C#. What if I want to do this from silverlight for instance, // I have left out the quotes to show you literally what the characters // are that I want to use string password = vtakyoj#"5 string encodedPassword = HttpUtility.UrlEncode(encryptedPassword, Encoding.UTF8); // encoded password now = vtakyoj%23%225 URI uri = new URI("http://www.url.com/page.aspx@password=vtakyoj%23%225"); HttpPage.Window.Navigate(uri); If I debug and look at the value of uri it shows up as this (we are still inside the silverlight app), http://www.url.com?password=vtakyoj%23"5 So the %22 has become a quote for some reason. If I then debug inside the page.aspx code (which of course is ASP .NET) the value of Request["pasword"] is actually this, vtakyoj#"5 Which is the original value. How does that work? I would have thought that I would have to go, HttpUtility.UrlDecode(Request["pswd"], Encoding.UTF8) To get the original value. Hope this makes sense? Thanks.

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• Jquery AJAX and figuring out how NOT to nest callbacks for multiple reloads.

  - by David H

  I have a site with a few containers that need to load content dynamically via AJAX. Most of the links inside of the containers actually load new data in that same container. I.E: $("#navmenu_item1").click(function() { $("#navmenu").load(blah); }); When I click on a link, lets say "logout," and the menu reloads with the updated login status, none of the links now work because I would need to add a new .click into the callback code. Now with repeated clicks and AJAX requests I am not sure how to move forward from here, as I am sure nested callbacks are not optimal. What would be the best way to do this? Do I include the .click event inside the actual AJAX file being pulled from the server, instead of within index.php? Or can I somehow reload the DOM? Thanks for the help!

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• How to implement a Counter Cache in Rails?

  - by yuval

  I have a posts controller and a comments controller. Post has many comments, and comments belong to Post. The associate is set up with the counter_cache option turned on as such: #Inside post.rb has_many :comments #Inside comment.rb belongs_to :post, :counter_cache => true I have a comments_count column in my posts table that is defaulted to zero, as such: add_column :posts, :comments_count, :integer, :default => 0 In the create action of my comments controller, I have the following code: def create @posts = Post.find(params[:post_id]) @comment = @post.comments.build(params[:comment]) if @comment.save redirect_to root else render :action => 'new' end end My problem: when @comment.save is called, I get the following error: ArgumentError in CommentsController#create wrong number of arguments (2 for 0) Removing :counter_cache => true from comment.rb completely solves the problem, so I'm assuming that it is the cause of this vague error. What am I missing here? How can I save my comment and still have rails take care of my counter_cache for my post? Thanks!

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• Selecting an entire photo album with UIImagePickerController

  - by itai alter

  Hello all, I was wondering if there's a way to select an entire photo album with UIImagePickerController. What I have now is a UIImagePickerController with sourceType of PhotoLibrary. It shows the Albums, and navigates inside an album to select a single image... What I want to do is when the user selects the Album, instead of going inside the album, I want to load all the images to an array so I could do a timed slideshow of them. The delegate (DidFinishPickingImage) lets me run code only after the user has already gone into the album and selected a single image. Is there a way to do it? I couldn't find any information on this. Thanks!

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• crash in calloc

  - by mmd

  I'm trying to debug a program I wrote. I ran it inside gdb and I managed to catch a SIGABRT from inside calloc(). I'm completely confused about how this can arise. Can it be a bug in gcc or even libc?? More details: My program uses OpenMP. I ran it through valgrind in single-threaded mode with no errors. I also use mmap() to load a 40GB file, but I doubt that is relevant. Inside gdb, I'm running with 30 threads. Several identical runs (same input&CL) finished correctly, until the problematic one that I caught. On the surface this suggests there might be a race condition of some type. However, the SIGABRT comes from calloc() which is out of my control. Here is some relevant gdb output: (gdb) info threads [...] * 11 Thread 0x7ffff0056700 (LWP 73449) 0x00007ffff6a948a5 in raise () from /lib64/libc.so.6 [...] (gdb) thread 11 [Switching to thread 11 (Thread 0x7ffff0056700 (LWP 73449))]#0 0x00007ffff6a948a5 in raise () from /lib64/libc.so.6 (gdb) bt #0 0x00007ffff6a948a5 in raise () from /lib64/libc.so.6 #1 0x00007ffff6a96085 in abort () from /lib64/libc.so.6 #2 0x00007ffff6ad1fe7 in __libc_message () from /lib64/libc.so.6 #3 0x00007ffff6ad7916 in malloc_printerr () from /lib64/libc.so.6 #4 0x00007ffff6adb79f in _int_malloc () from /lib64/libc.so.6 #5 0x00007ffff6adbdd6 in calloc () from /lib64/libc.so.6 #6 0x000000000040e87f in my_calloc (re=0x7fff2867ef10, st=0, options=0x632020) at gmapper/../gmapper/../common/my-alloc.h:286 #7 read_get_hit_list_per_strand (re=0x7fff2867ef10, st=0, options=0x632020) at gmapper/mapping.c:1046 #8 0x000000000041308a in read_get_hit_list (re=<value optimized out>, options=0x632010, n_options=1) at gmapper/mapping.c:1239 #9 handle_read (re=<value optimized out>, options=0x632010, n_options=1) at gmapper/mapping.c:1806 #10 0x0000000000404f35 in launch_scan_threads (.omp_data_i=<value optimized out>) at gmapper/gmapper.c:557 #11 0x00007ffff7230502 in ?? () from /usr/lib64/libgomp.so.1 #12 0x00007ffff6dfc851 in start_thread () from /lib64/libpthread.so.0 #13 0x00007ffff6b4a11d in clone () from /lib64/libc.so.6 (gdb) f 6 #6 0x000000000040e87f in my_calloc (re=0x7fff2867ef10, st=0, options=0x632020) at gmapper/../gmapper/../common/my-alloc.h:286 286 res = calloc(size, 1); (gdb) p size $2 = 814080 (gdb) The function my_calloc() is just a wrapper, but the problem is not in there, as the real calloc() call looks legit. These are the limits set in the shell: $ ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 2067285 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 10240 cpu time (seconds, -t) unlimited max user processes (-u) 1024 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited The program is not out of memory, it's using 41GB on a machine with 256GB available: $ top -b -n 1 | grep gmapper 73437 user 20 0 41.5g 16g 15g T 0.0 6.6 55:17.24 gmapper-ls $ free -m total used free shared buffers cached Mem: 258437 195567 62869 0 82 189677 -/+ buffers/cache: 5807 252629 Swap: 0 0 0 I compiled using gcc (GCC) 4.4.6 20120305 (Red Hat 4.4.6-4), with flags -g -O2 -DNDEBUG -mmmx -msse -msse2 -fopenmp -Wall -Wno-deprecated -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS.

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• ASP.NET GridView and UpdatePanel

  - by Echilon

  I have a GridView, inside a UserControl, inside an UpdatePanel on a page. There's a button in the GridView which needs to fire a postback. What happens is: User clicks button - RowCommand Fires - Custom event is raised on UserControl - Page detects this and changes the active view index for a multiview and also the page title and some other controls outside the UpdatePanel. The problem is, the page posts back asyncchronously, the page title changes, but the actions requireing a full postback don't happen because a full postback doesn't occur. To register the button as a postback trigger I'm using: ImageButton btnResults = e.Row.FindControl("btnResults") as ImageButton; ScriptManager scrCurrent = ScriptManager.GetCurrent(this.Page); if (btnResults != null && scrCurrent != null) { scrCurrent.RegisterPostBackControl(btnResults); } I know this is a bit of a complicated problem, but I'd really appreciate any help.

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• SVNKit's SVNCpoyClient method not working properly

  - by Gabriel Parenza

  Hi Everyone, I am having trouble copying file using SVNKit. After copying the files from source to destination files end up one folder above the intended folder. For ex: When copying files from "https://example.com/svn/repos/trunk/project/src/ex.txt" to "https://example.com/svn/repos/branches/PackageN/project/src", files end up in "project" folder inside PackageN while my intention is to move it to "src" folder inside "project. Code I am using: svnCopySource svnCopySource[] = new SVNCopySource[]{}; SVNCommitInfo svnCommitInfo = SVNClientManager.newInstance(null,"", "").getCopyClient().doCopy(svnCopySource, dstURL, false, false, false,commitMessage, null); // SVNCopySource[] sources // SVNURL dst // boolean isMove // boolean makeParents // boolean failWhenDstExists, // String commitMessage, // SVNProperties revisionProperties

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• Determine iPhone user's country

  - by alku83

  I need to determine at startup what country a user is in, for an iPhone application. Presumably I will have to turn on location services and do some sort of reverse geocoding. I don't really want to use a third party web service if possible, are there any other suggestions for determining country from what location services provides? Initially, I only need to check whether the user is inside the US or not, but this may change in the future to add more countries. I understand that location can not always be determined or the user may have location services turned off. Basically, I just need to know if the user is detected as being inside the US, in order to turn off a specific feature.

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• Using Facebook Connect with jQTouch?

  - by Volmar

  Hi, i'm starting a new jQTouch-project now and i'm thinking of using facebook connect to make it easier for users to register with my site. do anyone have any experience with this? I'm using the Facebook PHP SDK (from github), and i first tried to use it with the built in example, it worked good. i later tried it with jQTouch (the latest build from the SVN). when i create the log in/log out link inside a ul.roundedli element it does not work because jQTouch have some special function that handles links clicked inside a li-element. how can i go around this function and make it work with the connect-link, i'm using the display=touch version of the autentication dialog. when i add the link outside of the ul.roundedli-element it works in desktop safari but not in mobile safari. any ideas?

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• Visual Studio : Make files in a folder got to bin/debug and not bin/debug/folder

  - by CF_Maintainer

  Consider This: I have folder called \SQLCE35Dlls inside my solution. It has some dlls that are required for application to interact with a SQLCE database in a stand alone fashion [without sql server ce 35 install on the PC]. After a build, I want these files to go to bin/debug and not to bin/debug/SQLCE35Dlls/. Setting "Copy if Newer" creates the latter situation. I want the former. Is it possible to facilitate this or does this have to done as part of the installer script? [avoiding the solution of adding the dlls at the root level of the solution instead of inside a folder]. This is a Winforms project solution.

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• #if 0 as a define

  - by valerio

  I need a way to define a FLAGS_IF macro (or equivalent) such that FLAGS_IF(expression) <block_of_code> FLAGS_ENDIF when compiling in debug (e.g. with a specific compiler switch) compiles to if (MyFunction(expression)) { <block_of_code> } whereas in release does not result in any instruction, just as it was like this #if 0 <block_of_code> #endif In my ignorance on the matter of c/c++ preprocessors i can't think of any naive way (since #define FLAGS_IF(x) #if 0 does not even compile) of doing this, can you help? I need a solution that: Does not get messed up if */ is present inside <block_of_code> Is sure to generate 0 instructions in release even inside inline functions at any depth (i guess this excludes if (false){<block_of_code>} right?) Is standard compliant if possible Thank you

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• Facebook canvas iframe application

  - by zerkms

  How to get in server-side is application was opened inside http://app.facebook.com iframe or directly in browser?

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