Error message when searching for users in web services logs

master 15.10dev

When you search for a user on /webservice/admin/webservicelogs.php and click the "Go" button, you get the following error messages:

[WAR] d7 (lib/dml.php:1578) Array to string conversion
Call stack (most recent first):

    log_message("Array to string conversion", 8, true, true, "/home/kristina/code/mahara/htdocs/lib/dml.php", 1578) at /home/kristina/code/mahara/htdocs/lib/errors.php:441
    error(8, "Array to string conversion", "/home/kristina/code/mahara/htdocs/lib/dml.php", 1578, array(size 4)) at Unknown:0
    implode(",", array(size 1)) at /home/kristina/code/mahara/htdocs/lib/dml.php:1578
    create_sql_exception_message(object(ADODB_Exception), "SELECT "username" FROM "usr" WHERE "id" = ? ", array(size 1)) at /home/kristina/code/mahara/htdocs/lib/dml.php:480
    get_recordset_sql("SELECT "username" FROM "usr" WHERE "id" = ? ", array(size 1)) at /home/kristina/code/mahara/htdocs/lib/dml.php:791
    get_field_sql("SELECT "username" FROM "usr" WHERE "id" = ? ", array(size 1)) at /home/kristina/code/mahara/htdocs/lib/dml.php:779
    get_field("usr", "username", "id", array(size 1)) at /home/kristina/code/mahara/htdocs/webservice/admin/webservicelogs.php:22

[WAR] d7 (lib/errors.php:747) Failed to get a recordset: postgres8 error: [-1: ERROR: invalid input syntax for integer: "Array"] in EXECUTE("SELECT "username" FROM "usr" WHERE "id" = ? ")
Command was: SELECT "username" FROM "usr" WHERE "id" = ? and values was (Array)
Call stack (most recent first):

    log_message("Failed to get a recordset: postgres8 error: [-1: E...", 8, true, true) at /home/kristina/code/mahara/htdocs/lib/errors.php:97
    log_warn("Failed to get a recordset: postgres8 error: [-1: E...") at /home/kristina/code/mahara/htdocs/lib/errors.php:747
    SQLException->__construct("Failed to get a recordset: postgres8 error: [-1: E...") at /home/kristina/code/mahara/htdocs/lib/dml.php:480
    get_recordset_sql("SELECT "username" FROM "usr" WHERE "id" = ? ", array(size 1)) at /home/kristina/code/mahara/htdocs/lib/dml.php:791
    get_field_sql("SELECT "username" FROM "usr" WHERE "id" = ? ", array(size 1)) at /home/kristina/code/mahara/htdocs/lib/dml.php:779
    get_field("usr", "username", "id", array(size 1)) at /home/kristina/code/mahara/htdocs/webservice/admin/webservicelogs.php:22

[WAR] d7 (lib/dml.php:480) Failed to get a recordset: postgres8 error: [-1: ERROR: invalid input syntax for integer: "Array"] in EXECUTE("SELECT "username" FROM "usr" WHERE "id" = ? ")
Command was: SELECT "username" FROM "usr" WHERE "id" = ? and values was (Array)
Call stack (most recent first):

    get_recordset_sql("SELECT "username" FROM "usr" WHERE "id" = ? ", array(size 1)) at /home/kristina/code/mahara/htdocs/lib/dml.php:791
    get_field_sql("SELECT "username" FROM "usr" WHERE "id" = ? ", array(size 1)) at /home/kristina/code/mahara/htdocs/lib/dml.php:779
    get_field("usr", "username", "id", array(size 1)) at /home/kristina/code/mahara/htdocs/webservice/admin/webservicelogs.php:22