DB_DataObject manual

DB_DataObject

SQL Builder and Data Modeling Layer

This chapter describes how to use the DB_DataObject SQL Builder and Data Modeling layer

Table of Contents

• Introduction -- What DB_DataObject can do
• Configuration Options -- Setting the defaults for database access
• Auto Building and Database Schema -- creating the base Classes and Database schema
• DB_DataObject::factory() -- Autoload and instantate class based on table name.
• ->get() -- Simple Get (Select) request
• DB_DataObject::staticGet() -- Simple Get (Select) request, abbreviated and Autoload.
• {Child Class}::staticGet() -- Simple Get (Select) request, abbreviated (autogenerated)
• ->find() -- find results
• ->fetch() -- fetch next row
• ->count() -- Perform a select count() request
• ->insert() -- Insert current objects variables into database
• ->update() -- Update objects variables into database
• ->delete() -- Delete items from table
• Selecting Specific data (SELECT) -- Advanced Filters - ::query(), ::SelectAdd(), ::whereAdd(), ::Limit(), ::OrderBy(), ::GroupBy(),
• ->query() -- send a raw query
• ->free() -- Free resources
• ->selectAdd() -- Add selected columns
• ->whereAdd() -- Add WHERE statement
• ->escape() -- Escape a string for use with Like queries
• ->limit() -- Set limit
• ->orderBy() -- Add an order by condition
• ->groupBy() -- Add group by condition
• Automatic Table Linking and Joins -- Automatic Table Linking - ::getLink(), ::getLinks(), ::joinAdd(), ::selectAs()
• ->getLink() -- fetch and return a related object
• ->getLinks() -- load related objects
• ->selectAs() -- Build the select component of a query (usually for joins)
• ->joinAdd() -- add another dataobject to build a create join query
• ->set*() and ->get*() -- Automatic Setters and Getters using overload
• ->setFrom() -- Copy items from Array or Object (for form posting)
• ->toArray() -- Get an array of the current result
• ->validate() -- check object data, and call objects validation methods.
• ->tableName() -- Get or set the table name of an object
• ->database() -- Get or set the database the object uses
• ->table() -- Get or set the table schema
• ->keys() -- Get or set the table keys
• ->getDatabaseConnection() -- Get the PEAR Database Object
• ->getDatabaseResult() -- Get the PEAR Database Result Object
• DB_DataObject::debugLevel -- set the amount of debugging output
• ->debug() -- output debug information.
• DB_DataObject::raiseError -- throw an error
• Casting - Dates, Blobs and Null -- DB_DataObject_Cast ::date(), ::blob(), ::sql()

阅读全文
类别： 编程相关  查看评论