home *** CD-ROM | disk | FTP | other *** search
- sqltest: Formats SQL condition tests
-
- The 'sqltest' tag inserts a condition test into SQL code. It tests
- a column against a variable. This tag is used in SQL Methods.
-
- Syntax
-
- 'sqltest' tag syntax::
-
- <dtml-sqltest Variable|expr="VariableExpression">
-
- The 'sqltest' tag is a singleton. It inserts a SQL condition test
- statement. It is used to build SQL queries. The 'sqltest' tag
- correctly escapes the inserted variable. The named variable or
- variable expression is tested against a SQL column using the
- specified comparison operation.
-
- Attributes
-
- type=string -- The type of the variable. Valid types include:
- 'string', 'int', 'float' and 'nb'. 'nb' means non-blank
- string. The type attribute is required and is used to properly
- escape inserted variable.
-
- column=string -- The name of the SQL column to test against. This
- attribute defaults to the variable name.
-
- multiple=boolean -- If true, then the variable may be a sequence
- of values to test the column against.
-
- optional=boolean -- If true, then the test is optional and will
- not be rendered if the variable is empty or non-existent.
-
- op=string -- The comparison operation. Valid comparisons include:
-
- eq -- equal to
-
- gt -- greater than
-
- lt -- less than
-
- ne -- not equal to
-
- ge -- greater than or equal to
-
- le -- less than or equal to
-
- The comparison defaults to equal to. If the comparison is not
- recognized it is used anyway. Thus you can use comparisons such
- as 'like'.
-
- Examples
-
- Basic usage::
-
- select * from employees
- where <dtml-sqltest name type="string">
-
- If the 'name' variable is 'Bob' then this renders::
-
- select * from employees
- where name = 'Bob'
-
- Multiple values::
-
- select * from employees
- where <dtml-sqltest empid type=int multiple>
-
- If the 'empid' variable is '(12,14,17)' then this renders::
-
- select * from employees
- where empid in (12, 14, 17)
-
- See Also
-
- "sqlgroup tag":dtml-sqlgroup.stx
-
- "sqlvar tag":dtml-sqlvar.stx
-
-
-
-