Tuesday, 7 February 2017

ID change in Dynamics AX data dictionary

ID change in Dynamics AX data dictionary

The other day we upgraded to Cumulative Update 3 for Dynamics AX 2012. After that we got some problems in the SqlDictionary table - several table and field IDs did not much those in the AOT anymore.

One of our developers found this post, which contained a job fixing such issues. We had to correct the job a bit, otherwise it failed when trying to process Views or update field IDs that had been "swapped" during upgrade (e.g. before: fieldId1 = 6001, fieldId2 = 6002; after installing CU3: fieldId1 = 6002, fieldId2 = 6001).

This is the final version of the job. I know the change violates DRY principle, but for an ad-hoc job it is probably OK :)

static void fixTableAndFieldIds(Args _args)
{
    Dictionary dictionary = new Dictionary();
    SysDictTable dictTable;
    DictField dictField;
    TableId tableId;
    FieldId fieldId;
    SqlDictionary sqlDictionaryTable;
    SqlDictionary sqlDictionaryField;
 
    setPrefix("Update of data dictionary IDs");
    tableId = dictionary.tableNext(0);
    ttsbegin;
 
    while (tableId)
    {
        dictTable = new SysDictTable(tableId);
 
        setPrefix(dictTable.name());
 
        if (!dictTable.isSystemTable() && !dictTable.isView())
        {
            //Finds table in SqlDictionary by name in AOT, if ID was changed.
            //Empty field ID represents a table.
            select sqlDictionaryTable
                where sqlDictionaryTable.name == dictTable.name()
                && sqlDictionaryTable.fieldId == 0
                && sqlDictionaryTable.tabId != dictTable.id();
 
            if (sqlDictionaryTable)
            {
                info(dictTable.name());
                //Updates table ID in SqlDictionary
                if (ReleaseUpdateDB::changeTableId(
                    sqlDictionaryTable.tabId,
                    dictTable.id(),
                    dictTable.name()))
                {
                    info(strFmt("Table ID changed (%1 -> %2)", sqlDictionaryTable.tabId, dictTable.id()));
                }
            }
 
            fieldId = dictTable.fieldNext(0);
 
            //For all fields in table
            while (fieldId)
            {
                dictField = dictTable.fieldObject(fieldId);
 
                if (!dictField.isSystem())
                {
                    //Finds fields in SqlDictionary by name and compares IDs
                    select sqlDictionaryField
                        where sqlDictionaryField.tabId == dictTable.id()
                        && sqlDictionaryField.name == dictField.name()
                        && sqlDictionaryField.fieldId != 0
                        && sqlDictionaryField.fieldId != dictField.id();
 
                    if (sqlDictionaryField)
                    {
                        //Updates field ID in SqlDictionary
                        if (ReleaseUpdateDB::changeFieldId(
                            dictTable.id(),
                            sqlDictionaryField.fieldId,
                            -dictField.id(),
                            dictTable.name(),
                            dictField.name()))
                        {
                            info(strFmt("Pre-update: Field %1 - ID changed (%2 -> %3)",
                                dictField.name(),
                                sqlDictionaryField.fieldId,
                                -dictField.id()));
                        }
                    }
                }
                fieldId = dictTable.fieldNext(fieldId);
            }
 
            fieldId = dictTable.fieldNext(0);
 
            //For all fields in table
            while (fieldId)
            {
                dictField = dictTable.fieldObject(fieldId);
 
                if (!dictField.isSystem())
                {
                    select sqlDictionaryField
                        where sqlDictionaryField.tabId == dictTable.id()
                        && sqlDictionaryField.name == dictField.name()
                        && sqlDictionaryField.fieldId < 0;
 
                    if (sqlDictionaryField)
                    {
                        //Updates field ID in SqlDictionary
                        if (ReleaseUpdateDB::changeFieldId(
                            dictTable.id(),
                            sqlDictionaryField.fieldId,
                            -sqlDictionaryField.fieldId,
                            dictTable.name(),
                            dictField.name()))
                        {
                            info(strFmt("Final update: Field %1 - ID changed (%2 -> %3)",
                                dictField.name(),
                                sqlDictionaryField.fieldId,
                                -sqlDictionaryField.fieldId));
                        }
                    }
                }
                fieldId = dictTable.fieldNext(fieldId);
            }
        }
        tableId = dictionary.tableNext(tableId);
    }
    ttscommit;
}

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