Difference between revisions of "Macros For MySQL Functions"
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| + | The Asterisk implementation of MySQL connectivity generally requires a number of lines to execute a single query. This can be simplified using a macro. This is normally a simple task, but submitting values to a macro can be problematic, as seen in the "Other Queries" section below. | ||
| + | |||
| + | |||
==To Fetch Data From MySQL== | ==To Fetch Data From MySQL== | ||
| − | <PRE | + | This is used for returning a single value from a query. |
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| + | ===Macro=== | ||
| + | <PRE> | ||
[macro-MYSQLFETCH] | [macro-MYSQLFETCH] | ||
exten => s,1,MYSQL(Connect CONNID localhost databaseuser databasepassword databasename) | exten => s,1,MYSQL(Connect CONNID localhost databaseuser databasepassword databasename) | ||
| Line 10: | Line 17: | ||
</PRE> | </PRE> | ||
| − | + | ||
| + | ===Calling The Macro=== | ||
<PRE> | <PRE> | ||
Macro(MYSQLFETCH,RETURNEDVALUE,QUERY) | Macro(MYSQLFETCH,RETURNEDVALUE,QUERY) | ||
| Line 16: | Line 24: | ||
RETURNEDVALUE is the value to be returned from the database query. QUERY is the query to be issued to the database. | RETURNEDVALUE is the value to be returned from the database query. QUERY is the query to be issued to the database. | ||
| + | |||
====Example==== | ====Example==== | ||
| Line 27: | Line 36: | ||
==To Perform Other Queries MySQL== | ==To Perform Other Queries MySQL== | ||
| − | This is used for doing inserts, updates, deletes, etc. | + | This is used for doing inserts, updates, deletes, etc. |
| + | |||
| + | Note the use of the URIENCODE and URIDECODE functions. This allows the values in the query to contain commas (ie. "Smith, John"). Otherwise, if a macro is called, and an argument contains a comma, it will appears as multiple arguments. For example, if MYMACRO were called with ARG1 as "Smith, John" and ARG2 as "123-456-7890", the result would be: '''s,n,Macro(MYMACRO,<FONT COLOR=red>"Smith</FONT>,<FONT COLOR=blue>John"</FONT>,<FONT COLOR=GREEN>123-456-7890</FONT>)''' which would be three arguments, not two. | ||
| + | |||
| − | <PRE | + | ===Macro=== |
| + | <PRE> | ||
[macro-MYSQLUPDATE] | [macro-MYSQLUPDATE] | ||
exten => s,1,MYSQL(Connect CONNID localhost databaseuser databasepassword databasename) | exten => s,1,MYSQL(Connect CONNID localhost databaseuser databasepassword databasename) | ||
| Line 36: | Line 49: | ||
</PRE> | </PRE> | ||
| − | + | ||
| + | ===Calling The Macro=== | ||
<PRE> | <PRE> | ||
Macro(MYSQLUPDATE,${URIENCODE(QUERY)}) | Macro(MYSQLUPDATE,${URIENCODE(QUERY)}) | ||
| Line 42: | Line 56: | ||
QUERY is the query/action to be issued to the database. | QUERY is the query/action to be issued to the database. | ||
| + | |||
====Example==== | ====Example==== | ||
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exten => s,n,Macro(MYSQLUPDATE,${URIENCODE(UPDATE blacklist SET lastcalled=NOW() WHERE number="${CALLERID(number)}")}) | exten => s,n,Macro(MYSQLUPDATE,${URIENCODE(UPDATE blacklist SET lastcalled=NOW() WHERE number="${CALLERID(number)}")}) | ||
</PRE> | </PRE> | ||
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Latest revision as of 14:45, 13 June 2013
The Asterisk implementation of MySQL connectivity generally requires a number of lines to execute a single query. This can be simplified using a macro. This is normally a simple task, but submitting values to a macro can be problematic, as seen in the "Other Queries" section below.
To Fetch Data From MySQL
This is used for returning a single value from a query.
Macro
[macro-MYSQLFETCH]
exten => s,1,MYSQL(Connect CONNID localhost databaseuser databasepassword databasename)
exten => s,n,MYSQL(Query RESULTID ${CONNID} ${ARG2})
exten => s,n,MYSQL(Fetch FETCHID ${RESULTID} ${ARG1})
exten => s,n,MYSQL(Clear ${RESULTID})
exten => s,n,MYSQL(Disconnect ${RESULTID})
Calling The Macro
Macro(MYSQLFETCH,RETURNEDVALUE,QUERY)
RETURNEDVALUE is the value to be returned from the database query. QUERY is the query to be issued to the database.
Example
exten => s,n,Macro(MYSQLFETCH,DNDVALUE,SELECT value FROM features WHERE name="dnd" AND subname="status")
exten => s,n,GotoIf($[${DNDVALUE} = 1 ]?LINEISDND,s,1)
To Perform Other Queries MySQL
This is used for doing inserts, updates, deletes, etc.
Note the use of the URIENCODE and URIDECODE functions. This allows the values in the query to contain commas (ie. "Smith, John"). Otherwise, if a macro is called, and an argument contains a comma, it will appears as multiple arguments. For example, if MYMACRO were called with ARG1 as "Smith, John" and ARG2 as "123-456-7890", the result would be: s,n,Macro(MYMACRO,"Smith,John",123-456-7890) which would be three arguments, not two.
Macro
[macro-MYSQLUPDATE]
exten => s,1,MYSQL(Connect CONNID localhost databaseuser databasepassword databasename)
exten => s,n,MYSQL(Query RESULTID ${CONNID} ${URIDECODE(${ARG1})})
exten => s,n,MYSQL(Disconnect ${CONNID})
Calling The Macro
Macro(MYSQLUPDATE,${URIENCODE(QUERY)})
QUERY is the query/action to be issued to the database.
Example
exten => s,n,Macro(MYSQLUPDATE,${URIENCODE(UPDATE blacklist SET lastcalled=NOW() WHERE number="${CALLERID(number)}")})