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package SReview::API::Helpers;
use strict;
use warnings;
use feature "signatures";
no warnings "experimental::signatures";
use Exporter 'import';
our @EXPORT = qw/db_query update_with_json add_with_json delete_with_query/;
our @EXPORT_OK = qw/db_query_log is_authed/;
use SReview::Config::Common;
use Mojo::JSON qw/decode_json encode_json/;
use DateTime::Format::Pg;
sub db_query_log {
my ($app, $dbh, $query, @args) = @_;
my $st = $dbh->prepare($query);
$st->execute(@args);
my $results = [];
while(my @row = $st->fetchrow_array) {
if(scalar(@row) > 1) {
my $h = {};
foreach my $col(@{$st->{NAME_lc}}) {
$h->{$col} = shift @row;
}
push @$results, $h;
} else {
push @$results, @row;
}
}
return $results;
}
sub db_query {
my ($dbh, $query, @args) = @_;
return db_query_log(undef, $dbh, $query, @args);
}
sub delete_with_query {
my ($c, $query, @args) = @_;
my $st = $c->dbh->prepare($query);
eval {
$st->execute(@args);
};
if($st->err) {
$c->render(openapi => {errors => [{message => 'could not delete:', $st->errmsg}]}, status => 400);
return;
}
if($st->rows < 1) {
$c->render(openapi => {errors => [{message => 'not found'}]}, status => 404);
return;
}
my $row = $st->fetchrow_arrayref;
$c->render(openapi => $row->[0]);
}
sub update_with_json {
my ($c, $json, $tablename, $fields, $fixup) = @_;
my @args;
if(!exists($json->{id})) {
$c->render(openapi => {errors => [{message => 'id required'}]}, status => 400);
return;
}
$c->app->log->debug("updating $tablename with " . encode_json($json));
my @updates;
while(my @tuple = each %$json) {
if($tuple[0] eq "id") {
$c->app->log->debug("skipping id");
next;
}
unless(exists($fields->{$tuple[0]})) {
$c->app->log->debug("skipping unknown field " . $tuple[0]);
next;
}
my $update = $tuple[0] . " = ?";
push @updates, $update;
push @args, $tuple[1];
}
my $updates = join(', ', @updates);
my $dbh = $c->dbh;
my $res;
my $query = "UPDATE $tablename SET $updates WHERE id = ? RETURNING $tablename.*";
eval {
$res = db_query($dbh, $query ,@args, $json->{id});
};
if($@) {
$c->app->log->warn("error running $query: " . $dbh->errstr);
$c->render(openapi => {errors => [{message => "error communicating with database"}]}, status => 500);
return;
}
if(scalar(@$res) < 1) {
$c->render(openapi => {errors => [{message => "not found"}]}, status => 404);
return;
}
my $result = $res->[0];
foreach my $field(keys %$fields) {
next unless exists($fields->{$field}{format});
if($fields->{$field}{format} eq "date-time") {
# PostgreSQL never uses the T in date-time
# fields unless we're encoding JSON. Doing that
# makes Mojo::JSON unhappy. Not doing that makes
# OpenAPI unhappy about the lack of the T.
#
# JSON makes me unhappy.
$c->app->log->debug("changing date; before: ");
$c->app->log->debug($result->{$field});
$result->{$field} = DateTime::Format::Pg->parse_datetime($result->{$field})->iso8601() or die;
$c->app->log->debug("after: " . $result->{$field});
}
}
if(defined($fixup)) {
&$fixup($res->[0]);
}
$c->render(openapi => $res->[0]);
}
sub add_with_json {
my ($c, $json, $tablename, $fields, $fixup) = @_;
my @args;
my @inserts;
if(exists($json->{id})) {
delete $json->{id};
}
while(my @tuple = each %$json) {
next if($tuple[0] eq "id");
next unless(exists($fields->{$tuple[0]}));
push @inserts, $tuple[0];
push @args, $tuple[1];
}
my $inserts = join(', ', @inserts);
my $fieldlist;
if(scalar(@inserts) > 0) {
$fieldlist = "?, " x (scalar(@inserts) - 1) . "?";
} else {
$fieldlist = "";
}
my $dbh = $c->dbh;
my $res;
eval {
$res = db_query($dbh, "INSERT INTO $tablename($inserts) VALUES($fieldlist) RETURNING $tablename.*", @args);
};
if(!defined($res) || scalar(@$res) < 1) {
$c->render(openapi => {errors => [{message => "failed to add data: " . $dbh->errstr}]}, status => 400);
return;
}
my $result = $res->[0];
foreach my $field(keys %$fields) {
next unless exists($fields->{$field}{format});
if($fields->{$field}{format} eq "date-time") {
# PostgreSQL never uses the T in date-time
# fields unless we're encoding JSON. Doing that
# makes Mojo::JSON unhappy. Not doing that makes
# OpenAPI unhappy about the lack of the T.
#
# JSON makes me unhappy.
$c->app->log->debug("changing date; before: ");
$c->app->log->debug($result->{$field});
$result->{$field} = DateTime::Format::Pg->parse_datetime($result->{$field})->iso8601() or die;
$c->app->log->debug("after: " . $result->{$field});
}
}
if(defined($fixup)) {
&$fixup($res->[0]);
}
$c->render(openapi => $res->[0]);
}
sub is_authed($c) {
return defined($c->req->headers->header("X-SReview-Key"));
}
|
