Add DB_KEYS.
Discussion on #asterisk on 2011-01-19: (02:07:03 PM) boch: i wonder how to cycle all entries in a tree (02:07:11 PM) leifmadsen: use While() (02:07:17 PM) leifmadsen: you need to know the tree structure already though (02:07:36 PM) boch: what you mean? (02:09:02 PM) leifmadsen: you need to know the structure prior to looping, because you can't just return the structure from the dialplan (02:09:43 PM) leifmadsen: the only way I can think of doing that is via something like writing the output of: asterisk -rx "database show" to a file, then looping through that to know the structure of the database and check everything (02:09:59 PM) leifmadsen: but at that point you're better off just using either a relational database or an external script (02:10:13 PM) boch: for example i need to know all entries in the tree (02:10:15 PM) boch: got it (02:10:20 PM) leifmadsen: exactly (02:10:22 PM) leifmadsen: that's the problem (02:10:22 PM) boch: thank you (02:13:09 PM) mateu: yeah, i'm surprised there isn't something from the dialplan like 'database show family' so one can get all keys in a family to loop over. (02:15:35 PM) leifmadsen: database shows everything (02:16:22 PM) mateu: i mean something from the dial plan that mimics 'database show <family>' (02:16:41 PM) leifmadsen: guess no one has found that important enough to program :) (02:16:52 PM) leifmadsen: at that point you should probably just use a relational database... (02:17:10 PM) mateu: i dunno (02:17:16 PM) mateu: seems pretty basic to me. (02:17:16 PM) leifmadsen: me either (02:17:19 PM) leifmadsen: sure does (02:17:24 PM) leifmadsen: no one has programmed it though (02:17:28 PM) ***leifmadsen shrugs (02:17:43 PM) mateu: ok, well at least we know how it currently stands. thanks leifmadsen (02:28:52 PM) Corydon76-home: leifmadsen: something like HASHKEYS() ? (02:30:11 PM) leifmadsen: Corydon76-home: ummm, I was thinking more like DUNDI_QUERY() and DUNDI_RESULT() (02:30:31 PM) leifmadsen: although HASHKEYS() might work (02:30:58 PM) leifmadsen: actually ya, looking at it, similar to HASHKEYS() (02:31:01 PM) leifmadsen: DBKEYS() I guess? (02:31:45 PM) Corydon76-home: So with no argument, retrieves families, with an argument, retrieves keys of that family? (02:34:02 PM) leifmadsen: ya (02:34:16 PM) leifmadsen: how would you iterate through layers of them? (02:34:30 PM) leifmadsen: i.e. family/key/key/key ? (02:34:43 PM) Corydon76-home: Essentially, yes git-svn-id: http://svn.digium.com/svn/asterisk/trunk@303198 f38db490-d61c-443f-a65b-d21fe96a405b
This commit is contained in:
parent
a5ef9adee3
commit
1409afbea7
5
CHANGES
5
CHANGES
|
@ -40,6 +40,11 @@ Dialplan Variables
|
|||
ASTAGIDIR, ASTSPOOLDIR, ASTRUNDIR, ASTLOGDIR which hold the equivalent
|
||||
variables from asterisk.conf.
|
||||
|
||||
Dialplan Functions
|
||||
------------------
|
||||
* Added DB_KEYS, which lists the next set of keys in the Asterisk database
|
||||
hierarchy.
|
||||
|
||||
libpri channel driver (chan_dahdi) DAHDI changes
|
||||
--------------------------
|
||||
* Added moh_signaling option to specify what to do when the channel's bridged
|
||||
|
|
|
@ -81,6 +81,19 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
|
|||
<ref type="function">DB</ref>
|
||||
</see-also>
|
||||
</function>
|
||||
<function name="DB_KEYS" language="en_US">
|
||||
<synopsis>
|
||||
Obtain a list of keys within the Asterisk database.
|
||||
</synopsis>
|
||||
<syntax>
|
||||
<parameter name="prefix" />
|
||||
</syntax>
|
||||
<description>
|
||||
<para>This function will return a comma-separated list of keys existing
|
||||
at the prefix specified within the Asterisk database. If no argument is
|
||||
provided, then a list of key families will be returned.</para>
|
||||
</description>
|
||||
</function>
|
||||
<function name="DB_DELETE" language="en_US">
|
||||
<synopsis>
|
||||
Return a value from the database and delete it.
|
||||
|
@ -204,6 +217,61 @@ static struct ast_custom_function db_exists_function = {
|
|||
.read_max = 2,
|
||||
};
|
||||
|
||||
static int function_db_keys(struct ast_channel *chan, const char *cmd, char *parse, struct ast_str **result, ssize_t maxlen)
|
||||
{
|
||||
size_t parselen = strlen(parse);
|
||||
struct ast_db_entry *dbe, *orig_dbe;
|
||||
struct ast_str *escape_buf = NULL;
|
||||
const char *last = "";
|
||||
|
||||
/* Remove leading and trailing slashes */
|
||||
while (parse[0] == '/') {
|
||||
parse++;
|
||||
parselen--;
|
||||
}
|
||||
while (parse[parselen - 1] == '/') {
|
||||
parse[--parselen] = '\0';
|
||||
}
|
||||
|
||||
ast_str_reset(*result);
|
||||
|
||||
/* Nothing within the database at that prefix? */
|
||||
if (!(orig_dbe = dbe = ast_db_gettree(parse, NULL))) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
for (; dbe; dbe = dbe->next) {
|
||||
/* Find the current component */
|
||||
char *curkey = &dbe->key[parselen + 1], *slash;
|
||||
if (*curkey == '/') {
|
||||
curkey++;
|
||||
}
|
||||
/* Remove everything after the current component */
|
||||
if ((slash = strchr(curkey, '/'))) {
|
||||
*slash = '\0';
|
||||
}
|
||||
|
||||
/* Skip duplicates */
|
||||
if (!strcasecmp(last, curkey)) {
|
||||
continue;
|
||||
}
|
||||
last = curkey;
|
||||
|
||||
if (orig_dbe != dbe) {
|
||||
ast_str_append(result, maxlen, ",");
|
||||
}
|
||||
ast_str_append_escapecommas(result, maxlen, curkey, strlen(curkey));
|
||||
}
|
||||
ast_db_freetree(orig_dbe);
|
||||
ast_free(escape_buf);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct ast_custom_function db_keys_function = {
|
||||
.name = "DB_KEYS",
|
||||
.read2 = function_db_keys,
|
||||
};
|
||||
|
||||
static int function_db_delete(struct ast_channel *chan, const char *cmd,
|
||||
char *parse, char *buf, size_t len)
|
||||
{
|
||||
|
@ -252,6 +320,7 @@ static int unload_module(void)
|
|||
res |= ast_custom_function_unregister(&db_function);
|
||||
res |= ast_custom_function_unregister(&db_exists_function);
|
||||
res |= ast_custom_function_unregister(&db_delete_function);
|
||||
res |= ast_custom_function_unregister(&db_keys_function);
|
||||
|
||||
return res;
|
||||
}
|
||||
|
@ -263,6 +332,7 @@ static int load_module(void)
|
|||
res |= ast_custom_function_register(&db_function);
|
||||
res |= ast_custom_function_register(&db_exists_function);
|
||||
res |= ast_custom_function_register(&db_delete_function);
|
||||
res |= ast_custom_function_register(&db_keys_function);
|
||||
|
||||
return res;
|
||||
}
|
||||
|
|
Reference in New Issue