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If the geocoding fails, we add a base error message (for the whole object) and halt execution, so that the record is not saved

Exercise Your Paranoia with before_destroy What if your application has to handle important kinds of data that, once entered, should never be deleted Perhaps it would make sense to hook into Active Record s destroy mechanism and somehow mark the record as deleted instead The following example depends on the accounts table having a deleted_at datetime column

This exercise describes how to use Audit Workbench to tune the results Fortify SCA generates The purpose of tuning is to restrict the set of issues for review to those that are most relevant to the application and to the auditor Generally, a professional code auditor and a security-conscious software developer will not want to review exactly the same set of results The tuning process allows different audiences to best tailor Fortify SCA for their purposes

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In this section, we cover using JDBC to access relational data The javaxsqlDataSource API is the primary way to obtain a database connection and perform SQL operations using JDBC In SCA runtimes such as Fabric3 that provide JDBC support, a DataSource is obtained through injection However, instead of annotating a setter method or eld with @Reference or @Property, @Resource is used The @Resource annotation belongs to the javax annotation package and is de ned as part of the JSR-250 speci cation, Common Annotations for the Java Platform The @Resource annotation is used by SCA to declare a reference to a resource provided by the runtime in this case, a DataSource Listing 111 shows how to inject a DataSource on a component setter method

class Account < ActiveRecord::Base def before_destroy update_attribute(:deleted_at, Timenow) false end end

I chose to implement it as a callback method so that I am guaranteed it will execute last in the before_destroy queue It returns false so that execution is halted and the underlying record is not actually deleted from the database3 It s probably worth mentioning that there are ways that Rails allows you to unintentionally circumvent before_destroy callbacks:

1 For Windows: From the Start menu, navigate to Start All Programs Fortify Software Fortify SCA Suite Audit Workbench For other operating systems: From a terminal or command prompt, run auditworkbench 2 You will see the Audit Workbench splash screen (see Figure 1415)

identical They remove rows directly from the database without instantiating the corresponding model instances, which means no callbacks will occur

3 Real-life implementation of the example would also need to modify all finders to include deleted_at is NULL conditions; otherwise, the records marked deleted would continue to show up in the application That s not a trivial undertaking, and luckily you don t need to do it yourself There s a Rails plugin named ActsAsParanoid by Rick Olson that does exactly that, and you can find it at http://svntechnoweenienet/projects/plugins/acts_as_paranoid

Model objects in associations defined with the option :dependent => :delete_

3 The splash screen is followed by a dialog box prompting you to select an audit project to open (see Figure 1416)

In SCA runtimes such as Fabric3 that provide JDBC support, a DataSource is obtained through injection

Cleaning Up Associated Files with after destroy Model objects that have files associated with them, such as attachment records and uploaded images, can clean up after themselves when deleted using the after_destroy callback The following method from Rick Olson s old AttachmentFu4 plugin is a good example:

# Destroys the file Called in the after_destroy callback def destroy_file FileUtilsrm(full_filename) rescue loggerinfo "Exception destroying #{full_filename }" loggerwarn $!backtracecollect { |b| " > #{b}" }join("\n") end

1 Select the following file and click Open: <install_dir>/Tutorial/c/

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