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  • Filter a model's attributes before outputting as json

    - by Jorge Israel Peña
    Hey guys, I need to output my model as json and everything is going fine. However, some of the attributes need to be 'beautified' by filtering them through some helper methods, such as number_to_human_size. How would I go about doing this? In other words, say that I have an attribute named bytes and I want to pass it through number_to_human_size and have that result be output to json. I would also like to 'trim' what gets output as json if that's possible, since I only need some of the attributes. Is this possible? Can someone please give me an example? I would really appreciate it.

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  • Automating Solaris 11 Zones Installation Using The Automated Install Server

    - by Orgad Kimchi
    Introduction How to use the Oracle Solaris 11 Automated install server in order to automate the Solaris 11 Zones installation. In this document I will demonstrate how to setup the Automated Install server in order to provide hands off installation process for the Global Zone and two Non Global Zones located on the same system. Architecture layout: Figure 1. Architecture layout Prerequisite Setup the Automated install server (AI) using the following instructions “How to Set Up Automated Installation Services for Oracle Solaris 11” The first step in this setup will be creating two Solaris 11 Zones configuration files. Step 1: Create the Solaris 11 Zones configuration files  The Solaris Zones configuration files should be in the format of the zonecfg export command. # zonecfg -z zone1 export > /var/tmp/zone1# cat /var/tmp/zone1 create -b set brand=solaris set zonepath=/rpool/zones/zone1 set autoboot=true set ip-type=exclusive add anet set linkname=net0 set lower-link=auto set configure-allowed-address=true set link-protection=mac-nospoof set mac-address=random end  Create a backup copy of this file under a different name, for example, zone2. # cp /var/tmp/zone1 /var/tmp/zone2 Modify the second configuration file with the zone2 configuration information You should change the zonepath for example: set zonepath=/rpool/zones/zone2 Step2: Copy and share the Zones configuration files  Create the NFS directory for the Zones configuration files # mkdir /export/zone_config Share the directory for the Zones configuration file # share –o ro /export/zone_config Copy the Zones configuration files into the NFS shared directory # cp /var/tmp/zone1 /var/tmp/zone2  /export/zone_config Verify that the NFS share has been created using the following command # share export_zone_config      /export/zone_config     nfs     sec=sys,ro Step 3: Add the Global Zone as client to the Install Service Use the installadm create-client command to associate client (Global Zone) with the install service To find the MAC address of a system, use the dladm command as described in the dladm(1M) man page. The following command adds the client (Global Zone) with MAC address 0:14:4f:2:a:19 to the s11x86service install service. # installadm create-client -e “0:14:4f:2:a:19" -n s11x86service You can verify the client creation using the following command # installadm list –c Service Name  Client Address     Arch   Image Path ------------  --------------     ----   ---------- s11x86service 00:14:4F:02:0A:19  i386   /export/auto_install/s11x86service We can see the client install service name (s11x86service), MAC address (00:14:4F:02:0A:19 and Architecture (i386). Step 4: Global Zone manifest setup  First, get a list of the installation services and the manifests associated with them: # installadm list -m Service Name   Manifest        Status ------------   --------        ------ default-i386   orig_default   Default s11x86service  orig_default   Default Then probe the s11x86service and the default manifest associated with it. The -m switch reflects the name of the manifest associated with a service. Since we want to capture that output into a file, we redirect the output of the command as follows: # installadm export -n s11x86service -m orig_default >  /var/tmp/orig_default.xml Create a backup copy of this file under a different name, for example, orig-default2.xml, and edit the copy. # cp /var/tmp/orig_default.xml /var/tmp/orig_default2.xml Use the configuration element in the AI manifest for the client system to specify non-global zones. Use the name attribute of the configuration element to specify the name of the zone. Use the source attribute to specify the location of the config file for the zone.The source location can be any http:// or file:// location that the client can access during installation. The following sample AI manifest specifies two Non-Global Zones: zone1 and zone2 You should replace the server_ip with the ip address of the NFS server. <!DOCTYPE auto_install SYSTEM "file:///usr/share/install/ai.dtd.1"> <auto_install>   <ai_instance>     <target>       <logical>         <zpool name="rpool" is_root="true">           <filesystem name="export" mountpoint="/export"/>           <filesystem name="export/home"/>           <be name="solaris"/>         </zpool>       </logical>     </target>     <software type="IPS">       <source>         <publisher name="solaris">           <origin name="http://pkg.oracle.com/solaris/release"/>         </publisher>       </source>       <software_data action="install">         <name>pkg:/entire@latest</name>         <name>pkg:/group/system/solaris-large-server</name>       </software_data>     </software>     <configuration type="zone" name="zone1" source="file:///net/server_ip/export/zone_config/zone1"/>     <configuration type="zone" name="zone2" source="file:///net/server_ip/export/zone_config/zone2"/>   </ai_instance> </auto_install> The following example adds the /var/tmp/orig_default2.xml AI manifest to the s11x86service install service # installadm create-manifest -n s11x86service -f /var/tmp/orig_default2.xml -m gzmanifest You can verify the manifest creation using the following command # installadm list -n s11x86service  -m Service/Manifest Name  Status   Criteria ---------------------  ------   -------- s11x86service    orig_default        Default  None    gzmanifest          Inactive None We can see from the command output that the new manifest named gzmanifest has been created and associated with the s11x86service install service. Step 5: Non Global Zone manifest setup The AI manifest for non-global zone installation is similar to the AI manifest for installing the global zone. If you do not provide a custom AI manifest for a non-global zone, the default AI manifest for Zones is used The default AI manifest for Zones is available at /usr/share/auto_install/manifest/zone_default.xml. In this example we should use the default AI manifest for zones The following sample default AI manifest for zones # cat /usr/share/auto_install/manifest/zone_default.xml <?xml version="1.0" encoding="UTF-8"?> <!--  Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. --> <!DOCTYPE auto_install SYSTEM "file:///usr/share/install/ai.dtd.1"> <auto_install>     <ai_instance name="zone_default">         <target>             <logical>                 <zpool name="rpool">                     <!--                       Subsequent <filesystem> entries instruct an installer                       to create following ZFS datasets:                           <root_pool>/export         (mounted on /export)                           <root_pool>/export/home    (mounted on /export/home)                       Those datasets are part of standard environment                       and should be always created.                       In rare cases, if there is a need to deploy a zone                       without these datasets, either comment out or remove                       <filesystem> entries. In such scenario, it has to be also                       assured that in case of non-interactive post-install                       configuration, creation of initial user account is                       disabled in related system configuration profile.                       Otherwise the installed zone would fail to boot.                     -->                     <filesystem name="export" mountpoint="/export"/>                     <filesystem name="export/home"/>                     <be name="solaris">                         <options>                             <option name="compression" value="on"/>                         </options>                     </be>                 </zpool>             </logical>         </target>         <software type="IPS">             <destination>                 <image>                     <!-- Specify locales to install -->                     <facet set="false">facet.locale.*</facet>                     <facet set="true">facet.locale.de</facet>                     <facet set="true">facet.locale.de_DE</facet>                     <facet set="true">facet.locale.en</facet>                     <facet set="true">facet.locale.en_US</facet>                     <facet set="true">facet.locale.es</facet>                     <facet set="true">facet.locale.es_ES</facet>                     <facet set="true">facet.locale.fr</facet>                     <facet set="true">facet.locale.fr_FR</facet>                     <facet set="true">facet.locale.it</facet>                     <facet set="true">facet.locale.it_IT</facet>                     <facet set="true">facet.locale.ja</facet>                     <facet set="true">facet.locale.ja_*</facet>                     <facet set="true">facet.locale.ko</facet>                     <facet set="true">facet.locale.ko_*</facet>                     <facet set="true">facet.locale.pt</facet>                     <facet set="true">facet.locale.pt_BR</facet>                     <facet set="true">facet.locale.zh</facet>                     <facet set="true">facet.locale.zh_CN</facet>                     <facet set="true">facet.locale.zh_TW</facet>                 </image>             </destination>             <software_data action="install">                 <name>pkg:/group/system/solaris-small-server</name>             </software_data>         </software>     </ai_instance> </auto_install> (optional) We can customize the default AI manifest for Zones Create a backup copy of this file under a different name, for example, zone_default2.xml and edit the copy # cp /usr/share/auto_install/manifest/zone_default.xml /var/tmp/zone_default2.xml Edit the copy (/var/tmp/zone_default2.xml) The following example adds the /var/tmp/zone_default2.xml AI manifest to the s11x86service install service and specifies that zone1 and zone2 should use this manifest. # installadm create-manifest -n s11x86service -f /var/tmp/zone_default2.xml -m zones_manifest -c zonename="zone1 zone2" Note: Do not use the following elements or attributes in a non-global zone AI manifest:     The auto_reboot attribute of the ai_instance element     The http_proxy attribute of the ai_instance element     The disk child element of the target element     The noswap attribute of the logical element     The nodump attribute of the logical element     The configuration element Step 6: Global Zone profile setup We are going to create a global zone configuration profile which includes the host information for example: host name, ip address name services etc… # sysconfig create-profile –o /var/tmp/gz_profile.xml You need to provide the host information for example:     Default router     Root password     DNS information The output should eventually disappear and be replaced by the initial screen of the System Configuration Tool (see Figure 2), where you can do the final configuration. Figure 2. Profile creation menu You can validate the profile using the following command # installadm validate -n s11x86service –P /var/tmp/gz_profile.xml Validating static profile gz_profile.xml...  Passed Next, instantiate a profile with the install service. In our case, use the following syntax for doing this # installadm create-profile -n s11x86service  -f /var/tmp/gz_profile.xml -p  gz_profile You can verify profile creation using the following command # installadm list –n s11x86service  -p Service/Profile Name  Criteria --------------------  -------- s11x86service    gz_profile         None We can see that the gz_profie has been created and associated with the s11x86service Install service. Step 7: Setup the Solaris Zones configuration profiles The step should be similar to the Global zone profile creation on step 6 # sysconfig create-profile –o /var/tmp/zone1_profile.xml # sysconfig create-profile –o /var/tmp/zone2_profile.xml You can validate the profiles using the following command # installadm validate -n s11x86service -P /var/tmp/zone1_profile.xml Validating static profile zone1_profile.xml...  Passed # installadm validate -n s11x86service -P /var/tmp/zone2_profile.xml Validating static profile zone2_profile.xml...  Passed Next, associate the profiles with the install service The following example adds the zone1_profile.xml configuration profile to the s11x86service  install service and specifies that zone1 should use this profile. # installadm create-profile -n s11x86service  -f  /var/tmp/zone1_profile.xml -p zone1_profile -c zonename=zone1 The following example adds the zone2_profile.xml configuration profile to the s11x86service  install service and specifies that zone2 should use this profile. # installadm create-profile -n s11x86service  -f  /var/tmp/zone2_profile.xml -p zone2_profile -c zonename=zone2 You can verify the profiles creation using the following command # installadm list -n s11x86service -p Service/Profile Name  Criteria --------------------  -------- s11x86service    zone1_profile      zonename = zone1    zone2_profile      zonename = zone2    gz_profile         None We can see that we have three profiles in the s11x86service  install service     Global Zone  gz_profile     zone1            zone1_profile     zone2            zone2_profile. Step 8: Global Zone setup Associate the global zone client with the manifest and the profile that we create in the previous steps The following example adds the manifest and profile to the client (global zone), where: gzmanifest  is the name of the manifest. gz_profile  is the name of the configuration profile. mac="0:14:4f:2:a:19" is the client (global zone) mac address s11x86service is the install service name. # installadm set-criteria -m  gzmanifest  –p  gz_profile  -c mac="0:14:4f:2:a:19" -n s11x86service You can verify the manifest and profile association using the following command # installadm list -n s11x86service -p  -m Service/Manifest Name  Status   Criteria ---------------------  ------   -------- s11x86service    gzmanifest                   mac  = 00:14:4F:02:0A:19    orig_default        Default  None Service/Profile Name  Criteria --------------------  -------- s11x86service    gz_profile         mac      = 00:14:4F:02:0A:19    zone2_profile      zonename = zone2    zone1_profile      zonename = zone1 Step 9: Provision the host with the Non-Global Zones The next step is to boot the client system off the network and provision it using the Automated Install service that we just set up. First, boot the client system. Figure 3 shows the network boot attempt (when done on an x86 system): Figure 3. Network Boot Then you will be prompted by a GRUB menu, with a timer, as shown in Figure 4. The default selection (the "Text Installer and command line" option) is highlighted.  Press the down arrow to highlight the second option labeled Automated Install, and then press Enter. The reason we need to do this is because we want to prevent a system from being automatically re-installed if it were to be booted from the network accidentally. Figure 4. GRUB Menu What follows is the continuation of a networked boot from the Automated Install server,. The client downloads a mini-root (a small set of files in which to successfully run the installer), identifies the location of the Automated Install manifest on the network, retrieves that manifest, and then processes it to identify the address of the IPS repository from which to obtain the desired software payload. Non-Global Zones are installed and configured on the first reboot after the Global Zone is installed. You can list all the Solaris Zones status using the following command # zoneadm list -civ Once the Zones are in running state you can login into the Zone using the following command # zlogin –z zone1 Troubleshooting Automated Installations If an installation to a client system failed, you can find the client log at /system/volatile/install_log. NOTE: Zones are not installed if any of the following errors occurs:     A zone config file is not syntactically correct.     A collision exists among zone names, zone paths, or delegated ZFS datasets in the set of zones to be installed     Required datasets are not configured in the global zone. For more troubleshooting information see “Installing Oracle Solaris 11 Systems” Conclusion This paper demonstrated the benefits of using the Automated Install server to simplify the Non Global Zones setup, including the creation and configuration of the global zone manifest and the Solaris Zones profiles.

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  • Making the domain-model of tic tac toe

    - by devoured elysium
    I am trying to make the domain model of a Tic Tac Toe game. I'll try then to go on through the various steps of the Unified Process and later implement it in some language (C# or Java). I'd like to have some feedback if I'm going on the right path: I've defined the game with two actors, Player O and Player X. I'm not sure about defining both a Tile and a Tile State. Maybe I should only define a Tile and have the 3 possible states specialize from it? I'm not sure what is best: to have both Player O and Player X be associations with Tic Tac Toe or have them inherit from Player that is associated with Tic Tac Toe. Following the design shown on the pic, in theory we could have a Tic Tac Toe concept with 2 Player O's, which wouldn't be correct. What is your opinion on this? Also, am I missing something in the diagram? Although I can't see any other actors for Tic Tac Toe, should I have any other? Thanks

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  • How to return model state from child action handler in ASP.NET MVC

    - by Joe Future
    In my blog engine, I have one controller action that displays blog content, and in that view, I call Html.RenderAction(...) to render the "CreateComment" form. When a user posts a comment, the post is handled by the comment controller (not the blog controller). If the comment data is valid, I simply return a Redirect back to the blog page's URL. If the comment data is invalid (e.g. comment body is empty), I want to return the ViewData with the error information back to the blog controller and through the blog view to the CreateComment action/view so I can display which fields are bad. I have this working fine via AJAX when Javascript is enabled, but now I'm working on the case where Javascript might be disabled. If I return a RedirecToAction or Redirect from the comment controller, the model state information is lost. Any ideas?

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  • Entity Frameworks 4 - Changing the model does not update the T4 self tracking template files

    - by Darren
    I am using self tracking entities and have moved the entity classes to another assembly by using 'Add as link' to point to the TT file as mentioned here. Now though, when I update the model (for instance change a property name) the template is not automatically run and so the entity class does not get updated. I can of course manually run the template to get the updates, but it would be easier if it ran automatically in the way it did before I moved the classes. Is there any way to achieve this? Darren.

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  • Problem in In-App purchase-consumable model

    - by kunal-dutta
    I have created a nonconsumable in app purchase item and now I want to create a consumable in-app purchase by which a user to buy it every time he uses it,and also I want to create a subscription model In-App purchase. Everything works as expected except when I buy the item more than one time, iPhone pop ups a message saying "You've already purchased the item. Do You want to buy it again?". Is It possible to disable this dialog and proceed to the actual purchase?And what will have to change in following code with different model:- in InApp purchase manager.m: @implementation InAppPurchaseManager //@synthesize purchasableObjects; //@synthesize storeObserver; @synthesize proUpgradeProduct; @synthesize productsRequest; //BOOL featureAPurchased; //BOOL featureBPurchased; //static InAppPurchaseManager* _sharedStoreManager; // self (void)dealloc { //[_sharedStoreManager release]; //[storeObserver release]; [super dealloc]; } (void)requestProUpgradeProductData { NSSet *productIdentifiers = [NSSet setWithObject:@"com.vigyaapan.iWorkOut1" ]; productsRequest = [[SKProductsRequest alloc] initWithProductIdentifiers:productIdentifiers]; productsRequest.delegate = self; [productsRequest start]; // we will release the request object in the delegate callback } pragma mark - pragma mark SKProductsRequestDelegate methods (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response { //NSArray *products = response.products; //proUpgradeProduct = [products count] == 1 ? [[products firstObject] retain]: nil; if (proUpgradeProduct) { NSLog(@"Product title: %@", proUpgradeProduct.localizedTitle); NSLog(@"Product description: %@", proUpgradeProduct.localizedDescription); NSLog(@"Product price: %@", proUpgradeProduct.price); NSLog(@"Product id:%@", proUpgradeProduct.productIdentifier); } /*for (NSString invalidProductId in response.invalidProductIdentifiers) { NSLog(@"Invalid product id: %@" , invalidProductId); }/ //finally release the reqest we alloc/init’ed in requestProUpgradeProductData [productsRequest release]; [[NSNotificationCenter defaultCenter] postNotificationName:kInAppPurchaseManagerProductsFetchedNotification object:self userInfo:nil]; } pragma - pragma Public methods /* call this method once on startup*/ (void)loadStore { /* restarts any purchases if they were interrupted last time the app was open*/ [[SKPaymentQueue defaultQueue] addTransactionObserver:self]; /* get the product description (defined in early sections)*/ [self requestProUpgradeProductData]; } /* call this before making a purchase*/ (BOOL)canMakePurchases { return [SKPaymentQueue canMakePayments]; } /* kick off the upgrade transaction*/ (void)purchaseProUpgrade { SKPayment *payment = [SKPayment paymentWithProductIdentifier:@"9820091347"]; [[SKPaymentQueue defaultQueue] addPayment:payment]; } pragma - pragma Purchase helpers /* saves a record of the transaction by storing the receipt to disk*/ (void)recordTransaction:(SKPaymentTransaction )transaction { if ([transaction.payment.productIdentifier isEqualToString:kInAppPurchaseProUpgradeProductId]) { / save the transaction receipt to disk*/ [[NSUserDefaults standardUserDefaults] setValue:transaction.transactionReceipt forKey:@"proUpgradeTransactionReceipt" ]; [[NSUserDefaults standardUserDefaults] synchronize]; } } /* enable pro features*/ (void)provideContent:(NSString )productId { if ([productId isEqualToString:kInAppPurchaseProUpgradeProductId]) { / enable the pro features*/ [[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"isProUpgradePurchased" ]; [[NSUserDefaults standardUserDefaults] synchronize]; } } (void)finishTransaction:(SKPaymentTransaction )transaction wasSuccessful:(BOOL)wasSuccessful { // / remove the transaction from the payment queue.*/ [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; NSDictionary *userInfo = [NSDictionary dictionaryWithObjectsAndKeys:transaction, @"transaction" , nil]; if (wasSuccessful) { /* send out a notification that we’ve finished the transaction*/ [[NSNotificationCenter defaultCenter]postNotificationName:kInAppPurchaseManagerTransactionSucceededNotification object:self userInfo:userInfo]; } else { /* send out a notification for the failed transaction*/ [[NSNotificationCenter defaultCenter] postNotificationName:kInAppPurchaseManagerTransactionFailedNotification object:self userInfo:userInfo]; } } (void)completeTransaction:(SKPaymentTransaction *)transaction { [self recordTransaction:transaction]; [self provideContent:transaction.payment.productIdentifier]; [self finishTransaction:transaction wasSuccessful:YES]; } (void)restoreTransaction:(SKPaymentTransaction *)transaction { [self recordTransaction:transaction.originalTransaction]; [self provideContent:transaction.originalTransaction.payment.productIdentifier]; [self finishTransaction:transaction wasSuccessful:YES]; } (void)failedTransaction:(SKPaymentTransaction )transaction { if (transaction.error.code != SKErrorPaymentCancelled) { / error!/ [self finishTransaction:transaction wasSuccessful:NO]; } else { / this is fine, the user just cancelled, so don’t notify*/ [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; } } (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions { for (SKPaymentTransaction *transaction in transactions) { switch (transaction.transactionState) { case SKPaymentTransactionStatePurchased: [self completeTransaction:transaction]; break; case SKPaymentTransactionStateFailed: [self failedTransaction:transaction]; break; case SKPaymentTransactionStateRestored: [self restoreTransaction:transaction]; break; default: break; } } } @end in SKProduct.m:- @implementation SKProduct (LocalizedPrice) - (NSString *)localizedPrice { NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init]; [numberFormatter setFormatterBehavior:NSNumberFormatterBehavior10_4]; [numberFormatter setNumberStyle:NSNumberFormatterCurrencyStyle]; [numberFormatter setLocale:self.priceLocale]; NSString *formattedString = [numberFormatter stringFromNumber:self.price]; [numberFormatter release]; return formattedString; }

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  • Django Auth Model Issue - AUTH_USER_MODEL Not Installed

    - by Ian Warner
    Trying to debug this error with getting a Django project running ImproperlyConfigured: AUTH_USER_MODEL refers to model 'accounts.User' that has not been installed Running python manage.py migrate Must iterate i am in no way a python or django expert - I have simply inherited someone elses project that I am trying to get running for the team here. I have followed steps to install postgres required modules including south creating database for postgres Any help appreciated on how to debug this. settings/base.py contains INSTALLED_APPS = DJANGO_APPS + THIRD_PARTY_APPS + LOCAL_APPS LOCAL_APPS = ( 'apps.core', 'apps.accounts', 'apps.project_tool', 'apps.internal', 'apps.external', ) so apps.accounts exits - but it asks for AUTH_USER_MODEL = 'accounts.User' - should it be AUTH_USER_MODEL = 'apps.accounts.User'?

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  • Custom ValidationAttribute test against whole model

    - by griegs
    I know this is probably not possible but let's say I have a model with two properties. I write a ValidationAttribute for one of the properties. Can that VA look at the other property and make a decision? So; public class QuickQuote { public String state { get; set; } [MyRequiredValidator(ErrorMessage = "Error msg")] public String familyType { get; set; } So in the above example, can the validator test to see what's in the "state" property and take that into consideration when validating "familyType"? I know I can probably save the object to the session but would like to avoid any saving of state if possible.

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  • Recommendations on SharePoint site permission model

    - by Sachin
    Hi All, I have a SharePoint site which contains a root site and site collection in it. Now there are some sites that inherits permissions from their parent site and some site has their own permission module. Now a user from owner group of root site browses site collection but there are few site which doesn't allow user to view the content of it. Now what I want is general recommendation on when creating a new site in SharePoint what is best possible approach to set site permission. In what case we can inherits permissions from parent site..? In what case we can we us unique permission for a site..? If a site has unique permission set then is it possible to creat a group at root level which has access to all site collection irrespective of site permission model? I want a general recommendation based on above scenario. Any help will be appriciable. Thanks Sachin

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  • Model Based Testing Strategies

    - by Doubt
    What strategies have you used with Model Based Testing? Do you use it exclusively for integration testing, or branch it out to other areas (unit/functional/system/spec verification)? Do you build focused "sealed" models or do you evolve complex onibus models over time? When in the product cycle do you invest in creating MBTs? What sort of base test libraries do you exclusively create for MBTs? What difference do you make in your functional base test libraries to better support MBTs?

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  • can't update rails model

    - by Tristan
    Hi there, I'm rather new to rails. I have a controller that's attempting to update a model using the following code: @test = Product.find(1) @test.increment!(:price) It does successfully retrieve the Product from the database, but does not update the price attribute. Does anyone know why this might be the case, or how I could get more feedback on what the problem is? Thanks a bunch! Tristan edit: price is an integer with value 0. I get the same problem when I set the price with @test.price=50 and then @test.save .

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  • Default values for model fields in a Ruby on Rails form

    - by Callum Rogers
    I have a Model which has fields username, data, tags, date, votes. I have form using form_for that creates a new item and puts it into the database. However, as you can guess I want the votes field to equal 0 and the date field to equal the current date when it is placed into the database. How and where would I set/apply these values to the item? I can get it to work with hidden fields in the form but this comes with obvious issues (someone could set the votes field to a massive number.

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  • Asp.Net MVC - Blank model not returning blank data

    - by Pino
    I have a form which a user can fill in x times with the data they want too. The form is posted to the following Action. [HttpPost] public ActionResult Manage(ProductOptionModel DataToAdd) { if (!ModelState.IsValid) { return View(DataToAdd); } var ProdServ = new ProductService(); if (DataToAdd.ID != 0) { //Edit Mode. DataToAdd = ProdServ.EditProductOption(DataToAdd); ViewData["Message"] = "Option Changes Made"; }else { //Add DataToAdd = ProdServ.AddProductOption(DataToAdd); ViewData["Message"] = "New Option Added"; } var RetModel = new ProductOptionModel() {ProductID = DataToAdd.ProductID}; return View(RetModel); } So at the bottom I blank the model (Leaving just the required field) and then return to the view. However the view holds the data from the previously submitted form. Any ideas why? I have debugged the code and checked that the RetModel variable is empty.

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  • Thoughts on security model to store credit card details

    - by Faisal Abid
    Here is the model we are using to store the CC details how secure does this look? All our information is encrypted using public key encryption and the keypair is user dependent (its generated on the server and the private key is symmetric encrypted using the users password which is also Hashed on the database) So basically on first run the user sends in his password via a SSL connection and the password is used with the addition of salt to generate an MD5 hash, also the password is used to encrypt the private key and the private key is stored on the server. When the user wants to make a payment, he sends his password. The password decrypts the private key, and the private key decrypts the CC details and the CC details are charged.

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  • Suggest Cassandra data model for an existing schema

    - by Andriy Bohdan
    Hello guys! I hope there's someone who can help me suggest a suitable data model to be implemented using nosql database Apache Cassandra. More of than I need it to work under high loads and large amounts of data. Simplified I have 3 types of objects: Product Tag ProductTag Product: key - string key name - string .... - some other fields Tag: key - string key name - unique tag words ProductTag: product_key - foreign key referring to product tag_key - foreign key referring to tag rating - this is rating of tag for this product Each product may have 0 or many tags. Tag may be assigned to 1 or many products. Means relation between products and tags is many-to-many in terms of relational databases. Value of "rating" is updated "very" often. I need to be run the following queries Select objects by keys Select tags for product ordered by rating Select products by tag order by rating Update rating by product_key and tag_key The most important is to make these queries really fast on large amounts of data, considering that rating is constantly updated.

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  • Where to delete model image?

    - by WesDec
    I have a Model with an image field and I want to be able to change the image using a ModelForm. When changing the image, the old image should be deleted and replaced by the new image. I have tried to do this in the clean method of the ModelForm like this: def clean(self): cleaned_data = super(ModelForm, self).clean() old_profile_image = self.instance.image if old_profile_image: old_profile_image.delete(save=False) return cleaned_data This works fine unless the file indicated by the user is not correct (for example if its not an image), which result in the image being deleted without any new images being saved. I would like to know where is the best place to delete the old image? By this I mean where can I be sure that the new image is correct before deleting the old one?

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  • generate EF model by System.Diagnostics.Process

    - by loviji
    Hello, after read this article i tried generate EF model by System.Diagnostics.Process: Process myProcess = new Process(); var cs = "Data Source=.\\SQLEXPRESS; Initial Catalog=uqs; Integrated Security=SSPI"; myProcess.StartInfo.FileName = @"C:\Windows\Microsoft.NET\Framework\v3.5\EdmGen.exe"; myProcess.StartInfo.Arguments = "/mode:fullgeneration /c:"+cs+" project:School /entitycontainer:SchoolEntities /namespace:SchoolModel /language:CSharp "; myProcess.Start(); 1.but i haven't get a result, because i can't do well formed arguments string. As I tried, there have many quotes. how to organize argument string? 2.how can i catch if generation completed or have occurred errors?

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  • Facebook canvas app ASP.NET MVC HttpException: Invalid Model

    - by zznq
    I am working on a Facebook tab application. I am using asp.net MVC 2 with the "official" Microsoft Facebook SDK. Most of my views are working just fine. However, I have one that is causing a huge mess. I am simply returning a List<Tags> to the view and as my ViewModel. This problematic view is simply displaying the list in a foreach loop. Whenever navigate to this view I get a "System.Web.HttpException: Invalid Model" exception. The most puzzling part of all this is that the same code is running without fail on our regular(non-Facebook) app that works just fine with the same code. Any insight into why Facebook and asp.net MVC 2 would be causing this behavior would be much appreciated.

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  • Cannot await 'Model.PersonalInfo'

    - by Gooftroop
    I have the following method in a DesignDataService class public async Task<T> GetData<T>(T dataObject) { var typeName = typeof(T).Name; switch (typeName) { case "PersonalInfo": var person = new PersonalInfo { FirstName = "Mickey", LastName = "Mouse" , Adres = new Address{Country="DLRP"} , }; return await person; } // end Switch } // GetData<T> How can I return a new PersonalInfo class from the DataService? For now I get the error Cannot await 'Model.PersonalInfo' Even when I change the return statement as follows return await person as Task; the error stays the same Thanks in advanced Danny

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  • adding model validation errors in rescue

    - by ash34
    I have the following model with a virtual attribute class Mytimeperiod < ActiveRecord::Base validates presence of :from_dt validates_format_of :from_dt, :with => /\A\d{2}\/\d{2}\/\d{4}\Z/, :message => "format is mm/dd/yyyy" def from_dt self.from_date.strftime("%m/%d/%Y") if !self.from_date.blank? end def from_dt=(from_dt) self.from_date = Date.parse(from_dt) rescue self.errors.add_to_base("invalid from dt") end end I am using <%= f.error_messages %> to display the error messages on the form. I am using from_dt as a virtual attribute (string). The 'presence of' and 'format of' validation errors show up on the form, but when the user enters an invalid date format on the form and Date.Parse raises an exception I have a 'errors.add_to_base' statement in the rescue clause. Can anyone tell me why this error does not show up in the form error messages when I disable the 'format of' validation. thanks.

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  • CodeIgniter model debugging errors

    - by Jono
    I am new to CodeIgniter, and I need a way to get more meaningful error messages. Specifically I am having trouble with some model relationships, but the error is vague. I am willing to try/install anything since I dont know how to fix this relationship. Is there a way to specify how verbose an error message is? Also, this could be related to DataMapper, but I cant tell. I dont care if they are logged or in the browser. In my browser error reads: An Error Was Encountered Unable to relate X with Y. Any more info would be great... which class, line number, a stacktrace. Increasing the log threshold did not help.

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  • Generating C code from a Matlab-Simulink model for DSP C6748

    - by Juanma
    I'm trying to generate C code from a Matlab-Simulink simple model (eg.: sine wave generator with a DAC at the output). This code must be executed with Code Composer Studio for TMS320C6748 DSP (Texas Instrument C6748). Specifically, for the development board OMAP-L138 ZOOM ™EVM DEVELOPMENT KIT. For this, I am using the following versions: Simulink (Version 7.7 - R2011a) Embedded Coder (Version 6.0 - R2011a) Code Composer Studio v3.3 I tried several options (with generic modules in Simulink and programming the C6748 timers, configuring a module "Target Preferences" with "OMAP_L138/C6748 EVM"...) but it isn't working. Is it possible to implement this idea? Is there an example working? Thanks

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  • arbitrary typed data in django model

    - by Dmitry Shevchenko
    I have a model, say, Item. I want to store arbitrary amount of attributes on it, like title, description, release_date. And i want them to be not just strings but have python type, so string, boolean, datetime etc. What are my options here? EAV pattern with separate name-value table won't work because of the same DB type across all values. JSONField can probably help, but it doesn't know about datetime, for example. Also i was looking at PickeField, it fits perfectly, but i'm a bit concerned about performance.

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  • Bind selected value on combobox to view model

    - by Shaggy
    Hi, I have my silverlight app which pulls data into a datagrid from a view model. The vm is exposed via Mef. I also have a details grid which has comboboxes. The vm also contains the data to populate the combobox values. Upon first load, everything works fine and the selected items on te comboboxes are correct and I can select alternative values. However, if I sort my main data grid (allow sort=true) then I find the binding for selected value on the comboboxes dissapear. The combobox is still populated with data but nothing is selected. Has anyone come across this issue before? I am unsure how to solve this one. Thanks

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  • Django: How to create a model dynamically just for testing

    - by muhuk
    I have a Django app that requires a settings attribute in the form of: RELATED_MODELS = ('appname1.modelname1.attribute1', 'appname1.modelname2.attribute2', 'appname2.modelname3.attribute3', ...) Then hooks their post_save signal to update some other fixed model depending on the attributeN defined. I would like to test this behaviour and tests should work even if this app is the only one in the project (except for its own dependencies, no other wrapper app need to be installed). How can I create and attach/register/activate mock models just for the test database? (or is it possible at all?) Solutions that allow me to use test fixtures would be great.

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