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22P02 エラーが発生し続けます: invalid input syntax for integer: "{1,2,3}"(サービス コールのコメントを参照)。

これが私のサービスコールです：

...
using (var command = new NpgsqlCommand("mediabase.create_media", connection))
{
    command.CommandType = System.Data.CommandType.StoredProcedure;
    command.Parameters.Add("title", NpgsqlTypes.NpgsqlDbType.Varchar).Value = media.title;
    command.Parameters.Add("uniqueFilename", NpgsqlTypes.NpgsqlDbType.Varchar).Value = media.uniqueFilename;
    command.Parameters.Add("description", NpgsqlTypes.NpgsqlDbType.Varchar).Value = media.description;
    command.Parameters.Add("categoryIds", NpgsqlTypes.NpgsqlDbType.Varchar).Value = media.categoryIds; /* here the value is "1,2,3" */
    command.Parameters.Add("typeId", NpgsqlTypes.NpgsqlDbType.Integer).Value = media.typeId;
    command.Parameters.Add("ownerId", NpgsqlTypes.NpgsqlDbType.Integer).Value = media.ownerId;
    command.Parameters.Add("statusId", NpgsqlTypes.NpgsqlDbType.Integer).Value = media.statusId;
    command.Parameters.Add("gpsLocation", NpgsqlTypes.NpgsqlDbType.Varchar).Value = media.gpsLocation;
    command.Parameters.Add("locationNameId", NpgsqlTypes.NpgsqlDbType.Integer).Value = media.locationId;
    command.Parameters.Add("uploadUserId", NpgsqlTypes.NpgsqlDbType.Integer).Value = media.uploadUserId;
    command.Parameters.Add("uploadDate", NpgsqlTypes.NpgsqlDbType.Varchar).Value = media.uploadDate;
    command.Parameters.Add("uploadIp", NpgsqlTypes.NpgsqlDbType.Varchar).Value = media.uploadIp;
    command.Parameters.Add("metadataId", NpgsqlTypes.NpgsqlDbType.Integer).Value = metadataId;
    command.Parameters.Add("sysEnvironment", NpgsqlTypes.NpgsqlDbType.Varchar).Value = media.sysEnvironment;
    command.Parameters.Add("languageId", NpgsqlTypes.NpgsqlDbType.Integer).Value = media.languageId;
    command.Parameters.Add("publicationIds", NpgsqlTypes.NpgsqlDbType.Varchar).Value = media.publicationIds;
    command.Parameters.Add("limitations", NpgsqlTypes.NpgsqlDbType.Varchar).Value = media.limitations;

    mediaId = Convert.ToInt32(command.ExecuteScalar());
}

pgTransaction.Commit();
...

そしてストアドプロシージャ：

CREATE OR REPLACE FUNCTION mediabase.create_media(
    title character varying, 
    uniquefilename character varying, 
    description character varying, 
    categoryids character varying, 
    typeid integer, 
    ownerid integer, 
    statusid integer, 
    gpslocation character varying, 
    locationnameid integer, 
    uploaduserid integer, 
    uploaddate character varying, 
    uploadip character varying, 
    metadataid integer, 
    sysenvironment character varying, 
    languageid integer, 
    publicationids character varying, 
    limitations character varying)
  RETURNS integer AS
$BODY$
    declare _mediaId integer;
    declare _point varchar;
    declare _gps_location geometry;
    declare _id text;

    begin

    IF (gpslocation <> '') THEN
      _point = 'POINT(' || gpslocation || ')';
      _gps_location = ST_Transform(ST_GeomFromText(_point, 4326), 900913);
    ELSE
      _gps_location = NULL;
    END IF;

    insert into mediabase.media (
        title, 
        unique_filename, 
        description, 
        owner_id, 
        status_id, 
        gps_location, 
        type_id, 
        location_name_id, 
        upload_user_id, 
        upload_date, 
        upload_ip, 
        metadata_id, 
        system_environment,
        language_id,
        limitations)

    values (
        title, 
        uniqueFilename, 
        description, 
        ownerId, 
        statusId, 
        _gps_location, 
        typeId, 
        locationNameId, 
        uploadUserId, 
        uploadDate, 
        uploadIp, 
        metadataId, 
        sysEnvironment,
        languageid,
        limitations)

    returning id into _mediaId; 

    -- insert category ids
    FOR _id IN SELECT string_to_array (categoryids,',')
    LOOP 
        INSERT into mediabase.media_categories (media_id, category_id)
        values (_mediaId, (_id::int));
    END LOOP;

    -- insert publication ids
    FOR _id IN SELECT string_to_array (publicationids,',')
    LOOP 
        INSERT into mediabase.media_publications (media_id, publication_id)
        values (_mediaId, (_id::int));
    END LOOP;

    return _mediaId;

    end;

$BODY$
  LANGUAGE plpgsql VOLATILE
  COST 100;

サービス メソッドでわかるように、パラメーターの入力はcategoryidsstring"1,2,3"であり、NpgsqlDbTypeisVarcharです。また、ストアド プロシージャでの入力タイプはcharacter varyingです。

実行ログは次のとおりです。

2013-01-17 08:56:42 CET ERROR:  invalid input syntax for integer: "{1,2,3}"
2013-01-17 08:56:42 CET CONTEXT:  SQL statement "INSERT into mediabase.media_categories (media_id, category_id)
            values (_mediaId, (_id::integer))"
    PL/pgSQL function "create_media" line 54 at SQL statement
2013-01-17 08:56:42 CET STATEMENT:  select * from mediabase.create_media(('Penguins')::varchar,('079117ec-676f-4022-9950-69e55c2a2600_Penguins.jpg')::varchar,('Description...')::varchar,('1,2,3')::varchar,(1)::int4,(1)::int4,(1)::int4,('')::varchar,(1)::int4,(1)::int4,('17/01/2013 08:56:42')::varchar,('::1')::varchar,(399)::int4,('dev')::varchar,(1)::int4,('1,2')::varchar,('Limitations...')::varchar)

このエラーが表示されるのはなぜですか?

4

1 に答える 1

3

@dezso と @CraigRinger のヒントを使用して問題を解決しました。コンマ区切りの文字列ではなく、整数の配列を使用しています。変更点は次のとおりです。

サービスコール:

...
/* media.categoryIds is of type int[] now */
command.Parameters.Add("categoryIds", NpgsqlTypes.NpgsqlDbType.Array | NpgsqlTypes.NpgsqlDbType.Integer).Value = media.categoryIds;
...

ストアド プロシージャ:

...
CREATE OR REPLACE FUNCTION mediabase.create_media(
    title character varying, 
    uniquefilename character varying, 
    description character varying, 
    categoryids integer[], -- changed type
    typeid integer, 
    ownerid integer, 
    statusid integer, 
    gpslocation character varying, 
    locationnameid integer, 
    uploaduserid integer, 
    uploaddate character varying, 
    uploadip character varying, 
    metadataid integer, 
    sysenvironment character varying, 
    languageid integer, 
    publicationids integer[], -- changed type
    limitations character varying)
...
...
    declare i integer;
...
...
    -- insert category ids
    FOR i IN SELECT generate_subscripts( categoryids, 1 )
    LOOP 
        INSERT into mediabase.media_categories (media_id, category_id)
        values (_mediaId, categoryids[i]);
    END LOOP;

    -- insert publication ids
    FOR i IN SELECT generate_subscripts( publicationids, 1 )
    LOOP 
        INSERT into mediabase.media_publications (media_id, publication_id)
        values (_mediaId, publicationids[i]);
    END LOOP;
...

これについて助けてくれてありがとう。

于 2013-01-17T10:28:21.210 に答える