Docs For Class GALExpression

GALExpressionAND eand(
GALExpression
$cond)

Connect two or more statements with AND.

This method supports strings as arguments; they are implicitly converted to a GALExpressionRaw. As the AND operator is binary, multiple operands are recursively treated by building a chain connected by AND, i.e. ((((A) AND (B)) AND (C)) AND (D)). The e is added to eand() to avoid a conflict with PHP syntax.

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return:	First element of a a chain of GALExpressionAND objects.
access:	public

Parameters:

GALExpression

$cond

The first condition. It might also be a string.

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GALExpressionNOT enot(
)

Invert this logical expression.

GALExpressionNOT just adds a "( NOT ($condition))". The e is added to enot() to avoid a conflict with PHP syntax.

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return:

The inverse of this object.

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GALExpressionOR eor(
GALExpression
$cond)

Connect two or more statements with OR.

This method supports strings as arguments; they are implicitly converted to a GALExpressionRaw. As the OR operator is binary, multiple operands are recursively treated by building a chain connected by OR, i.e. ((((A) OR (B)) OR (C)) OR (D)). The e is added to eor() to avoid a conflict with PHP syntax.

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return:

First element of a a chain of GALExpressionOR objects.

Parameters:

GALExpression

$cond

The first condition. It might also be a string.

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string __toString(
)

String representation of this logical expression.

In child classes this method returns a string representation that can be inserted directly into a SQL query.

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return:	SQL logical expression.
access:	public
abstract:

Overridden in child classes as:

GALExpressionCompare::__toString(): SQL string representation of the comparison expression.

GALExpressionList::__toString(): SQL string representation of the expression.

GALExpressionTRUE::__toString()

GALExpressionFALSE::__toString()

GALExpressionAND::__toString(): SQL string representation of this logical expression.

GALExpressionOR::__toString(): SQL string representation of this logical expression.

GALExpressionNOT::__toString(): SQL string representation of this logical expression.

GALExpressionRaw::__toString(): Returns the string value of the condition in brackets.

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Class: GALExpression

Class Overview

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Methods

Child classes:

Class Details

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Class Methods

method eand [line 56]

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Parameters:

method enot [line 105]

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method eor [line 83]

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Parameters:

method __toString [line 114]

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