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C CakePHP 1.2 API

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Class DboOdbc

Short description for class.

Long description for class

Object
Extended by DataSource
Extended by DboSource
Extended by DboOdbc
Package: cake\cake\libs\model\datasources\dbo
Copyright: Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
License: The MIT License
Location: model/datasources/dbo/dbo_odbc.php

Properties summary

  • $_baseConfig public
    array
    Driver base configuration
  • $columns public
    unknown_type
    Enter description here...
  • $description public
    string
    Driver description
  • $endQuote public
    string
    Table/column end quote
  • $startQuote public
    string
    Table/column starting quote

Inherited Properties

  • __bypass, __sqlOps, _commands, alias, fieldCache, index __descriptions, _queriesCnt, _queriesLog, _queriesLogMax, _queriesTime, _queryCache, _result, _sources, _transactionStarted, affected, cacheSources, config, configKeyName, connected, connection, error, fullDebug, numRows, took _log

Method Summary

  • _execute() public
    Executes given SQL statement.
  • column() public
    Enter description here...
  • connect() public
    Connects to the database using options in the given configuration array.
  • describe() public
    Returns an array of the fields in given table name.
  • disconnect() public
    Disconnects from database.
  • enabled() public
    Check if the ODBC extension is installed/loaded
  • fetchResult() public
    Fetches the next row from the current result set
  • fields() public
    Generates the fields list of an SQL query.
  • lastAffected() public

    Returns number of affected rows in previous database operation. If no previous operation exists, this returns false.

  • lastError() public
    Returns a formatted error message from previous database operation.
  • lastInsertId() public
    Returns the ID generated from the previous INSERT operation.
  • lastNumRows() public

    Returns number of rows in previous resultset. If no previous resultset exists, this returns false.

  • listSources() public
    Returns an array of sources (tables) in the database.
  • resultSet() public
    Enter description here...
  • value() public
    Returns a quoted and escaped string of $data for use in an SQL statement.

Method Detail

_execute() public ¶

_execute( string $sql )

Executes given SQL statement.

Parameters
string $sql
SQL statement
Returns
resource
Result resource identifier

column() public ¶

column( string $real )

Enter description here...

Parameters
string $real
Real database-layer column type (i.e. "varchar(255)")
Returns
string
Abstract column type (i.e. "string")
Overrides
DataSource::column()

connect() public ¶

connect( )

Connects to the database using options in the given configuration array.

Returns
boolean
True if the database could be connected, else false

describe() public ¶

describe( Model $model )

Returns an array of the fields in given table name.

Parameters
Model $model
Model object to describe
Returns
array
Fields in table. Keys are name and type
Overrides
DataSource::describe()

disconnect() public ¶

disconnect( )

Disconnects from database.

Returns
boolean
True if the database could be disconnected, else false

enabled() public ¶

enabled( )

Check if the ODBC extension is installed/loaded

Returns
boolean
Overrides
DataSource::enabled()

fetchResult() public ¶

fetchResult( )

Fetches the next row from the current result set

Returns
unknown

fields() public ¶

fields( Model $model , string $alias = null , mixed $fields = null , boolean $quote = true )

Generates the fields list of an SQL query.

Parameters
Model $model
string $alias optional null
Alias tablename
mixed $fields optional null
boolean $quote optional true
If false, returns fields array unquoted
Returns
array
Overrides
DboSource::fields()

lastAffected() public ¶

lastAffected( )

Returns number of affected rows in previous database operation. If no previous operation exists, this returns false.

Returns
integer
Number of affected rows
Overrides
DataSource::lastAffected()

lastError() public ¶

lastError( )

Returns a formatted error message from previous database operation.

Returns
string
Error message with error number

lastInsertId() public ¶

lastInsertId( unknown_type $source = null )

Returns the ID generated from the previous INSERT operation.

Parameters
unknown_type $source optional null
Returns
integer
Overrides
DataSource::lastInsertId()

lastNumRows() public ¶

lastNumRows( )

Returns number of rows in previous resultset. If no previous resultset exists, this returns false.

Returns
integer
Number of rows in resultset
Overrides
DataSource::lastNumRows()

listSources() public ¶

listSources( )

Returns an array of sources (tables) in the database.

Returns
array
Array of tablenames in the database
Overrides
DataSource::listSources()

resultSet() public ¶

resultSet( unknown_type $results )

Enter description here...

Parameters
unknown_type $results

value() public ¶

value( string $data , string $column = null )

Returns a quoted and escaped string of $data for use in an SQL statement.

Parameters
string $data
String to be prepared for use in an SQL statement
string $column optional null
The column into which this data will be inserted
Returns
string
Quoted and escaped
Overrides
DboSource::value()

Methods inherited from DboSource

__construct() public ¶

__construct( $config = null , $autoConnect = true )

Constructor

Overrides
DataSource::__construct()

__filterResults() public ¶

__filterResults( array $results , object $model , array $filtered = array() )

Private method. Passes association results thru afterFind filters of corresponding model

Parameters
array $results
Reference of resultset to be filtered
object $model
Instance of model to operate against
array $filtered optional array()
List of classes already filtered, to be skipped
Returns
return

__mergeAssociation() public ¶

__mergeAssociation( unknown_type $data , unknown_type $merge , unknown_type $association , unknown_type $type , boolean $selfJoin = false )

Enter description here...

Parameters
unknown_type $data
unknown_type $merge
unknown_type $association
unknown_type $type
boolean $selfJoin optional false

__mergeConditions() public ¶

__mergeConditions( $query , $assoc )

Merges a mixed set of string/array conditions

Returns
array

__mergeHasMany() public ¶

__mergeHasMany( array $resultSet , array $merge , string $association , object $model , object $linkModel )

mergeHasMany - Merge the results of hasMany relations.

Parameters
array $resultSet
Data to merge into
array $merge
Data to merge
string $association
Name of Model being Merged
object $model
Model being merged onto
object $linkModel
Model being merged

__parseKey() public ¶

__parseKey( Model $model , string $key , mixed $value )

Extracts a Model.field identifier and an SQL condition operator from a string, formats and inserts values, and composes them into an SQL snippet.

Parameters
Model $model
Model object initiating the query
string $key
An SQL key snippet containing a field and optional SQL operator
mixed $value
The value(s) to be inserted in the string
Returns
string

__quoteFields() public ¶

__quoteFields( string $conditions )

Quotes Model.fields

Parameters
string $conditions
Returns
string
or false if no match

__scrubQueryData() public ¶

__scrubQueryData( array $data )

Private helper method to remove query metadata in given data array.

Parameters
array $data
Returns
array

_getJoins() public ¶

_getJoins( object $model )

Returns an array of SQL JOIN fragments from a model's associations

Parameters
object $model
Returns
array

_matchRecords() public ¶

_matchRecords( Model $model , mixed $conditions = null )

Gets a list of record IDs for the given conditions. Used for multi-record updates and deletes in databases that do not support aliases in UPDATE/DELETE queries.

Parameters
Model $model
mixed $conditions optional null
Returns
array
List of record IDs

_prepareUpdateFields() public ¶

_prepareUpdateFields( Model $model , array $fields , boolean $quoteValues = true , boolean $alias = false )

Quotes and prepares fields and values for an SQL UPDATE statement

Parameters
Model $model
array $fields
boolean $quoteValues optional true
If values should be quoted, or treated as SQL snippets
boolean $alias optional false
Include the model alias in the field name
Returns
array
Fields and values, quoted and preparted

alterSchema() public ¶

alterSchema( unknown_type $compare , $table = null )

Generate a alter syntax from CakeSchema::compare()

Parameters
unknown_type $compare
$schema
$table optional null
Returns
unknown

begin() public ¶

begin( model $model )

Begin a transaction

Parameters
model $model
Returns
boolean

True on success, false on fail (i.e. if the database/model does not support transactions, or a transaction has not started).


Overrides
DataSource::begin()

boolean() public ¶

boolean( mixed $data )

Translates between PHP boolean values and Database (faked) boolean values

Parameters
mixed $data
Value to be translated
Returns
mixed
Converted boolean value

buildColumn() public ¶

buildColumn( array $column )

Generate a database-native column schema string

Parameters
array $column

An array structured like the following: array('name'=>'value', 'type'=>'value'[, options]), where options can be 'default', 'length', or 'key'.

Returns
string

buildIndex() public ¶

buildIndex( array $indexes , string $table = null )

Format indexes for create table

Parameters
array $indexes
string $table optional null
Returns
array

buildJoinStatement() public ¶

buildJoinStatement( array $join )

Builds and generates a JOIN statement from an array. Handles final clean-up before conversion.

Parameters
array $join
An array defining a JOIN statement in a query
Returns
string
An SQL JOIN statement to be used in a query
See
DboSource::renderJoinStatement()
DboSource::buildStatement()

buildStatement() public ¶

buildStatement( array $query , object $model )

Builds and generates an SQL statement from an array. Handles final clean-up before conversion.

Parameters
array $query
An array defining an SQL query
object $model
The model object which initiated the query
Returns
string
An executable SQL statement
See
DboSource::renderStatement()

calculate() public ¶

calculate( model $model , string $func , array $params = array() )

Returns an SQL calculation, i.e. COUNT() or MAX()

Parameters
model $model
string $func
Lowercase name of SQL function, i.e. 'count' or 'max'
array $params optional array()
Function parameters (any values must be quoted manually)
Returns
string
An SQL calculation function

close() public ¶

close( )

Disconnects database, kills the connection and says the connection is closed, and if DEBUG is turned on, the log for this object is shown.

commit() public ¶

commit( model $model )

Commit a transaction

Parameters
model $model
Returns
boolean

True on success, false on fail (i.e. if the database/model does not support transactions, or a transaction has not started).


Overrides
DataSource::commit()

conditionKeysToString() public ¶

conditionKeysToString( array $conditions , boolean $quoteValues = true , Model $model = null )

Creates a WHERE clause by parsing given conditions array. Used by DboSource::conditions().

Parameters
array $conditions
Array or string of conditions
boolean $quoteValues optional true
If true, values should be quoted
Model $model optional null
A reference to the Model instance making the query
Returns
string
SQL fragment

conditions() public ¶

conditions( mixed $conditions , boolean $quoteValues = true , boolean $where = true , Model $model = null )

Creates a WHERE clause by parsing given conditions data. If an array or string conditions are provided those conditions will be parsed and quoted. If a boolean is given it will be integer cast as condition. Null will return 1 = 1.

Parameters
mixed $conditions
Array or string of conditions, or any value.
boolean $quoteValues optional true
If true, values should be quoted
boolean $where optional true
If true, "WHERE " will be prepended to the return value
Model $model optional null
A reference to the Model instance making the query
Returns
string
SQL fragment

create() public ¶

create( Model $model , array $fields = null , array $values = null )

The "C" in CRUD

Parameters
Model $model
array $fields optional null
array $values optional null
Returns
boolean
Success
Overrides
DataSource::create()

createSchema() public ¶

createSchema( object $schema , string $tableName = null )

Generate a database-native schema for the given Schema object

Parameters
object $schema
An instance of a subclass of CakeSchema
string $tableName optional null

Optional. If specified only the table name given will be generated. Otherwise, all tables defined in the schema are generated.

Returns
string

defaultConditions() public ¶

defaultConditions( object $model , mixed $conditions , boolean $useAlias = true )

Creates a default set of conditions from the model if $conditions is null/empty. If conditions are supplied then they will be returned. If a model doesn't exist and no conditions were provided either null or false will be returned based on what was input.

Parameters
object $model
mixed $conditions

Array of conditions, conditions string, null or false. If an array of conditions, or string conditions those conditions will be returned. With other values the model's existance will be checked. If the model doesn't exist a null or false will be returned depending on the input value.

boolean $useAlias optional true
Use model aliases rather than table names when generating conditions
Returns
mixed
Either null, false, $conditions or an array of default conditions to use.
See
DboSource::update()
DboSource::conditions()

delete() public ¶

delete( Model $model , mixed $conditions = null )

Generates and executes an SQL DELETE statement. For databases that do not support aliases in UPDATE queries.

Parameters
Model $model
mixed $conditions optional null
Returns
boolean
Success
Overrides
DataSource::delete()

dropSchema() public ¶

dropSchema( object $schema , string $table = null )

Generate a "drop table" statement for the given Schema object

Parameters
object $schema
An instance of a subclass of CakeSchema
string $table optional null

Optional. If specified only the table name given will be generated. Otherwise, all tables defined in the schema are generated.

Returns
string

execute() public ¶

execute( string $sql , array $options = array() )

Queries the database with given SQL statement, and obtains some metadata about the result (rows affected, timing, any errors, number of rows in resultset). The query is also logged. If DEBUG is set, the log is shown all the time, else it is only shown on errors.

Parameters
string $sql
array $options optional array()
Returns
mixed
Resource or object representing the result set, or false on failure

expression() public ¶

expression( string $expression )

Returns an object to represent a database expression in a query

Parameters
string $expression
Returns
object
An object representing a database expression to be used in a query

fetchAll() public ¶

fetchAll( string $sql , boolean $cache = true , $modelName = null )

Returns an array of all result rows for a given SQL query. Returns false if no rows matched.

Parameters
string $sql
SQL statement
boolean $cache optional true
Enables returning/storing cached query results
$modelName optional null
Returns
array
Array of resultset rows, or false if no rows matched

fetchAssociated() public ¶

fetchAssociated( model $model , string $query , array $ids )

A more efficient way to fetch associations. Woohoo!

Parameters
model $model
Primary model object
string $query
Association query
array $ids
Array of IDs of associated records
Returns
array
Association results

fetchRow() public ¶

fetchRow( $sql = null )

Returns a row from current resultset as an array

Returns
array
The fetched row as an array

field() public ¶

field( string $name , string $sql )

Returns a single field of the first of query results for a given SQL query, or false if empty.

Parameters
string $name
Name of the field
string $sql
SQL query
Returns
unknown

fullTableName() public ¶

fullTableName( mixed $model , boolean $quote = true )

Gets full table name including prefix

Parameters
mixed $model
boolean $quote optional true
Returns
string
Full quoted table name

generateAssociationQuery() public ¶

generateAssociationQuery( Model $model , Model $linkModel , string $type , string $association , array $assocData , array $queryData , boolean $external , array $resultSet )

Generates an array representing a query or part of a query from a single model or two associated models

Parameters
Model $model
Model $linkModel
string $type
string $association
array $assocData
array $queryData
boolean $external
array $resultSet
Returns
mixed

getConstraint() public ¶

getConstraint( string $type , object $model , array $linkModel , $alias , $assoc , $alias2 = null )

Returns a conditions array for the constraint between two models

Parameters
string $type
Association type
object $model
Model object
array $linkModel
$association Association array
$alias
$assoc
$alias2 optional null
Returns
array
Conditions array defining the constraint between $model and $association

group() public ¶

group( string $group )

Create a GROUP BY SQL clause

Parameters
string $group
Group By Condition
Returns
mixed
string condition or null

hasAny() public ¶

hasAny( Model $Model , string $sql )

Checks if the specified table contains any record matching specified SQL

Parameters
Model $Model
Model to search
string $sql
SQL WHERE clause (condition only, not the "WHERE" part)
Returns
boolean
True if the table has a matching record, else false

hasResult() public ¶

hasResult( )

Checks if the result is valid

Returns
boolean
True if the result is valid else false

identifier() public ¶

identifier( string $identifier )

Returns an object to represent a database identifier in a query

Parameters
string $identifier
Returns
object
An object representing a database identifier to be used in a query

index() public ¶

index( string $model )

Returns an array of the indexes in given datasource name.

Parameters
string $model
Name of model to inspect
Returns
array
Fields in table. Keys are column and unique

insertMulti() public ¶

insertMulti( string $table , string $fields , array $values )

Inserts multiple values into a table

Parameters
string $table
string $fields
array $values

introspectType() public ¶

introspectType( string $value )

Guesses the data type of an array

Parameters
string $value

isConnected() public ¶

isConnected( )

Checks if it's connected to the database

Returns
boolean
True if the database is connected, else false

length() public ¶

length( string $real )

Gets the length of a database-native column description, or null if no length

Parameters
string $real
Real database-layer column type (i.e. "varchar(255)")
Returns
mixed
An integer or string representing the length of the column

limit() public ¶

limit( integer $limit , integer $offset = null )

Returns a limit statement in the correct format for the particular database.

Parameters
integer $limit
Limit of results returned
integer $offset optional null
Offset from which to start results
Returns
string
SQL limit/offset statement

logQuery() public ¶

logQuery( string $sql )

Log given SQL query.

Parameters
string $sql
SQL statement
Todo:
Add hook to log errors instead of returning false

name() public ¶

name( string $data )

Returns a quoted name of $data for use in an SQL statement. Strips fields out of SQL functions before quoting.

Parameters
string $data
Returns
string
SQL field

order() public ¶

order( string $keys , string $direction = 'ASC' )

Returns an ORDER BY clause as a string.

Parameters
string $keys
$key Field reference, as a key (i.e. Post.title)
string $direction optional 'ASC'
Direction (ASC or DESC)
Returns
string
ORDER BY clause

query() public ¶

query( )

DataSource Query abstraction

Returns
resource
Result resource identifier

queryAssociation() public ¶

queryAssociation( Model $model , unknown_type $linkModel , string $type , unknown_type $association , unknown_type $assocData , unknown_type $queryData , unknown_type $external , unknown_type $resultSet , integer $recursive , array $stack )

Enter description here...

Parameters
Model $model
unknown_type $linkModel
string $type
Association type
unknown_type $association
unknown_type $assocData
unknown_type $queryData
unknown_type $external
unknown_type $resultSet
integer $recursive
Number of levels of association
array $stack

rawQuery() public ¶

rawQuery( string $sql )

Executes given SQL statement.

Parameters
string $sql
SQL statement
Returns
unknown

read() public ¶

read( Model $model , array $queryData = array() , integer $recursive = null )

The "R" in CRUD

Parameters
Model $model
array $queryData optional array()
integer $recursive optional null
Number of levels of association
Returns
unknown
Overrides
DataSource::read()

reconnect() public ¶

reconnect( array $config = array() )

Reconnects to database server with optional new settings

Parameters
array $config optional array()
An array defining the new configuration settings
Returns
boolean
True on success, false on failure

renderJoinStatement() public ¶

renderJoinStatement( array $data )

Renders a final SQL JOIN statement

Parameters
array $data
Returns
string

renderStatement() public ¶

renderStatement( string $type , array $data )

Renders a final SQL statement by putting together the component parts in the correct order

Parameters
string $type
array $data
Returns
string

resolveKey() public ¶

resolveKey( unknown_type $model , unknown_type $key , unknown_type $assoc = null )

Returns a key formatted like a string Model.fieldname(i.e. Post.title, or Country.name)

Parameters
unknown_type $model
unknown_type $key
unknown_type $assoc optional null
Returns
string
Overrides
DataSource::resolveKey()

rollback() public ¶

rollback( model $model )

Rollback a transaction

Parameters
model $model
Returns
boolean

True on success, false on fail (i.e. if the database/model does not support transactions, or a transaction has not started).


Overrides
DataSource::rollback()

showLog() public ¶

showLog( boolean $sorted = false )

Outputs the contents of the queries log.

Parameters
boolean $sorted optional false

showQuery() public ¶

showQuery( string $sql )

Output information about an SQL query. The SQL statement, number of rows in resultset, and execution time in microseconds. If the query fails, an error is output instead.

Parameters
string $sql
Query to show information on.

truncate() public ¶

truncate( mixed $table )

Deletes all the records in a table and resets the count of the auto-incrementing primary key, where applicable.

Parameters
mixed $table
A string or model class representing the table to be truncated
Returns
boolean
SQL TRUNCATE TABLE statement, false if not applicable.

update() public ¶

update( Model $model , array $fields = array() , array $values = null , mixed $conditions = null )

Generates and executes an SQL UPDATE statement for given model, fields, and values. For databases that do not support aliases in UPDATE queries.

Parameters
Model $model
array $fields optional array()
array $values optional null
mixed $conditions optional null
Returns
boolean
Success
Overrides
DataSource::update()

Methods inherited from DataSource

__cacheDescription() public ¶

__cacheDescription( string $object , mixed $data = null )

Cache the DataSource description

Parameters
string $object
The name of the object (model) to cache
mixed $data optional null
The description of the model, usually a string or array

__destruct() public ¶

__destruct( )

Closes the current datasource.

insertQueryData() public ¶

insertQueryData( unknown_type $query , unknown_type $data , unknown_type $association , unknown_type $assocData , Model $model , Model $linkModel , array $stack )

Enter description here...

Parameters
unknown_type $query
unknown_type $data
unknown_type $association
unknown_type $assocData
Model $model
Model $linkModel
array $stack
Returns
unknown

isInterfaceSupported() public ¶

isInterfaceSupported( string $interface )

Returns true if the DataSource supports the given interface (method)

Parameters
string $interface
The name of the interface (method)
Returns
boolean
True on success

setConfig() public ¶

setConfig( array $config = array() )

Sets the configuration for the DataSource

Parameters
array $config optional array()
The configuration array

sources() public ¶

sources( $reset = false )

Convenience method for DboSource::listSources(). Returns source names in lowercase.

Returns
array

Methods inherited from Object

Object() public ¶

Object( )

A hack to support __construct() on PHP 4 Hint: descendant classes have no PHP4 class_name() constructors, so this constructor gets called first and calls the top-layer __construct() which (if present) should call parent::__construct()

Returns
Object

__openPersistent() public ¶

__openPersistent( string $name , string $type = null )

Open the persistent class file for reading Used by Object::_persist()

Parameters
string $name
Name of persisted class
string $type optional null
Type of persistance (e.g: registry)

_persist() public ¶

_persist( string $name , string $return , $object , $type = null )

Checks for a persistent class file, if found file is opened and true returned If file is not found a file is created and false returned If used in other locations of the model you should choose a unique name for the persistent file There are many uses for this method, see manual for examples

Parameters
string $name
name of the class to persist
string $return
$object the object to persist
$object
$type optional null
Returns
boolean
Success

_savePersistent() public ¶

_savePersistent( string $name , object $object )

You should choose a unique name for the persistent file

There are many uses for this method, see manual for examples

Parameters
string $name
name used for object to cache
object $object
the object to persist
Returns
boolean
true on save, throws error if file can not be created

_set() public ¶

_set( array $properties = array() )

Allows setting of multiple properties of the object in a single line of code.

Parameters
array $properties optional array()
An associative array containing properties and corresponding values.

_stop() public ¶

_stop( $status = 0 )

Stop execution of the current script

Parameters
$status optional 0
http://php.net/exit for values

cakeError() public ¶

cakeError( string $method , array $messages = array() )

Used to report user friendly errors. If there is a file app/error.php or app/app_error.php this file will be loaded error.php is the AppError class it should extend ErrorHandler class.

Parameters
string $method
Method to be called in the error class (AppError or ErrorHandler classes)
array $messages optional array()
Message that is to be displayed by the error class
Returns
error
message

dispatchMethod() public ¶

dispatchMethod( string $method , array $params = array() )

Calls a method on this object with the given parameters. Provides an OO wrapper for call_user_func_array, and improves performance by using straight method calls in most cases.

Parameters
string $method
Name of the method to call
array $params optional array()
Parameter list to use when calling $method
Returns
mixed
Returns the result of the method call

log() public ¶

log( string $msg , integer $type = LOG_ERROR )

API for logging events.

Parameters
string $msg
Log message
integer $type optional LOG_ERROR
Error type constant. Defined in app/config/core.php.
Returns
boolean
Success of log write

requestAction() public ¶

requestAction( mixed $url , array $extra = array() )

Calls a controller's method from any location.

Parameters
mixed $url
String or array-based url.
array $extra optional array()
if array includes the key "return" it sets the AutoRender to true.
Returns
mixed

Boolean true or false on success/failure, or contents of rendered action if 'return' is set in $extra.


toString() public ¶

toString( )

Object-to-string conversion. Each class can override this method as necessary.

Returns
string
The name of this class

Properties detail

$_baseConfig ¶

public array

Driver base configuration

array(
    'persistent' => true,
    'login' => 'root',
    'password' => '',
    'database' => 'cake',
    'connect'  => 'odbc_pconnect'
)

$columns ¶

public unknown_type

Enter description here...

array()

$description ¶

public string

Driver description

"ODBC DBO Driver"

$endQuote ¶

public string

Table/column end quote

"`"

$startQuote ¶

public string

Table/column starting quote

"`"
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