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Cache result from database function reads (conf call)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5741 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer
2005-05-19 17:49:14 +00:00
parent db988c5b3a
commit 9c83ec2f25
1 changed files with 15 additions and 9 deletions
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24
funcs/func_db.c
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@@ -51,8 +51,10 @@ static char *function_db_read(struct ast_channel *chan, char *cmd, char *data, c
} }
if (ast_db_get(family, key, buf, len-1)) { if (ast_db_get(family, key, buf, len-1)) {
ast_log(LOG_WARNING, "DB: %s/%s not found in database.\n", family, key); ast_log(LOG_DEBUG, "DB: %s/%s not found in database.\n", family, key);
} } else
pbx_builtin_setvar_helper(chan, "DB_RESULT", buf);
return buf; return buf;
} }
@@ -93,11 +95,12 @@ struct ast_custom_function db_function = {
.name = "DB", .name = "DB",
.synopsis = "Read or Write from/to the Asterisk database", .synopsis = "Read or Write from/to the Asterisk database",
.syntax = "DB(<family>/<key>)", .syntax = "DB(<family>/<key>)",
.desc = "This function will read or write a value from/to the Asterisk database." .desc = "This function will read or write a value from/to the Asterisk database.\n"
"DB(...) will read a value from the database, while DB(...)=value" "DB(...) will read a value from the database, while DB(...)=value\n"
"will write a value to the database. On a read, this function" "will write a value to the database. On a read, this function\n"
"returns the value from the datase, or NULL if it does not exist." "returns the value from the datase, or NULL if it does not exist.\n"
"On a write, this function will always return NULL.", "On a write, this function will always return NULL. Reading a database value\n"
"will also set the global variable DB_RESULT.\n",
.read = function_db_read, .read = function_db_read,
.write = function_db_write, .write = function_db_write,
}; };
@@ -128,8 +131,10 @@ static char *function_db_exists(struct ast_channel *chan, char *cmd, char *data,
if (ast_db_get(family, key, buf, len-1)) if (ast_db_get(family, key, buf, len-1))
ast_copy_string(buf, "0", len); ast_copy_string(buf, "0", len);
else else {
pbx_builtin_setvar_helper(chan, "DB_RESULT", buf);
ast_copy_string(buf, "1", len); ast_copy_string(buf, "1", len);
}
return buf; return buf;
} }
@@ -143,6 +148,7 @@ struct ast_custom_function db_exists_function = {
.syntax = "DB_EXISTS(<family>/<key>)", .syntax = "DB_EXISTS(<family>/<key>)",
.desc = "This function will check to see if a key exists in the Asterisk\n" .desc = "This function will check to see if a key exists in the Asterisk\n"
"database. If it exists, the function will return \"1\". If not,\n" "database. If it exists, the function will return \"1\". If not,\n"
"it will return \"0\".", "it will return \"0\". Checking for existance of database value will\n"
"also set the global variable DB_RESULT to that value if it exists.\n",
.read = function_db_exists, .read = function_db_exists,
}; };