![]() If this parameter is true, the feature will be used when possible, by default. Not all databases support this syntax, and not all queries can use it even in supported databases. Get or set a boolean value that determines whether or not this class will consider using a sub-query to express limit/ offset constraints when fetching sub-objects related through one of the ".-to-many" relationship types. Get or set a boolean value that indicates whether or not this class will use DBI's prepare_cached method by default (instead of the prepare method) when preparing SQL queries. A very minimal example is shown in the synopsis above. Subclasses are expected to create syntactically pleasing wrappers for Rose::DB::Object::Manager class methods, either manually or with the make_manager_methods method. Each row in the table(s) queried is converted into the equivalent Rose::DB::Object-derived object.Ĭlass methods are provided for fetching objects all at once, one at a time through the use of an iterator, or just getting the object count. Rose::DB::Object::Manager is a base class for classes that select rows from tables fronted by Rose::DB::Object-derived classes. # Given the following Rose::DB::Object-derived classes. Rose::DB::Object::Manager - Fetch multiple Rose::DB::Object-derived objects from the database using complex queries. $array2 =& array_ref_inc_x ( $array ) # Need reference here as well as the function sig ![]() # (5) You have to force pass by reference and return by reference on arrays # (4) Arrays use pass by value sematics just like scalars $x2 =& scalar_ref_inc_x ( $x ) # Need reference here as well as the function sig # (3) You have to force pass by reference and return by reference on scalars # (2) Scalars are not passed by reference or returned as such Objects are implicitly passed by reference. It may be surprising that pass by value is used for arrays just like scalars. Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures Functions Classes and Objects Namespaces Enumerations Errors Exceptions Fibers Generators Attributes References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Predefined Attributes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting User Submitted Data Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Cryptography Extensions Database Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions XML Manipulation GUI Extensions Keyboard Shortcuts ? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto searchĭevelopers with a C background may expect pass by reference semantics for arrays.
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