source: IHS-VA_UTILITIES-XB/trunk/XBRXREF.m@ 830

XBRXREF ; IHS/ADC/GTH - RE-XREF SELECTED XREFS ; [ 02/07/97   3:02 PM ]
        ;;4.0;XB;;Jul 20, 2009;Build 2
        ;
        ; This routine re-xrefs selected cross references for a file.
        ; The xrefs are killed at the highest level and then reset.
        ; This is very different from what FileMan does when you
        ; RE-INDEX a field.  FileMan does a logical kill and then
        ; sets the new xrefs.  The reason for this is multiple fields
        ; may set the same xref so you would want to kill only the
        ; ones set by the field being RE-INDEXed.
        ;
        ; You must re-xref all fields that set any one of the xrefs
        ; being killed and reset, unless the xref is set the same
        ; from multiple fields.  Very hard to explain.  If you do
        ; not understand the problem, you probably shouldn't be
        ; running this routine.
        ;
        ; This routine executes an entry point in ^DIK to build the
        ; xref logic for all xrefs on the file.  It then deletes the
        ; logic for all xrefs not selected, and executes another
        ; entry point in ^DIK to actually xref the file.
        ;
        ; TRIGGERS are very complex animals, which do not have a
        ; xref to kill plus may be conditional and may have no affect
        ; on the SET side at all.  Because of the uncertainties here
        ; this routine will not do TRIGGERS.
        ;
        ; Xrefs at the multiple level would require a $O through the
        ; data global to kill, therefore, sub-file xrefs are not
        ; selectable unless they are cross-referenced to the whole
        ; file.
        ;
START   ;
        D INIT^XBRXREF2 ;            Do initialization
        D GETFILE^XBRXREF2 ;         Get file to be RE-XREFed
        I XBRXREF("QFLG") D EOJ Q
        D BLDXRT^XBRXREF2 ;          Build xref table
        I XBRXREF("QFLG") D EOJ Q
        D CONFIRM^XBRXREF2 ;         Get confirmation from user
        I XBRXREF("QFLG") D EOJ Q
EN      ; EXTERNAL ENTRY POINT
        D SETUP ;                    Set up xrefs for ^DIK
        D KILL ;                     Kill xrefs
        D XREF ;                     For each entry, set xrefs
        D EOJ ;                      Clean up
        Q
        ;
SETUP   ; SETUP XREFS FOR ^DIK
        S DIK=XBRXREF("GBL"),X=1
        D DD^DIK
        S XBRXREF("DIK FILE")=""
        F XBRXREF("L")=0:0 S XBRXREF("DIK FILE")=$O(^UTILITY("DIK",$J,XBRXREF("DIK FILE"))) Q:XBRXREF("DIK FILE")=""  D SETUPB
        Q
        ;
SETUPB  ; KILL OFF DIK FILE/SUB-FILES NOT NEEDED
        I '$D(^TMP("XBRXREF",$J,XBRXREF("DIK FILE"))) KILL ^UTILITY("DIK",$J,XBRXREF("DIK FILE")) Q
        S XBRXREF("DIK FIELD")=""
        F XBRXREF("L")=0:0 S XBRXREF("DIK FIELD")=$O(^UTILITY("DIK",$J,XBRXREF("DIK FILE"),XBRXREF("DIK FIELD"))) Q:XBRXREF("DIK FIELD")=""  D SETUPC
        Q
        ;
SETUPC  ; KILL OFF DIK FIELDS NOT NEEDED
        I '$D(^TMP("XBRXREF",$J,XBRXREF("DIK FILE"),XBRXREF("DIK FIELD"))) KILL ^UTILITY("DIK",$J,XBRXREF("DIK FILE"),XBRXREF("DIK FIELD")) Q
        S XBRXREF("DIK XREF")=0
        F XBRXREF("L")=0:0 S XBRXREF("DIK XREF")=$O(^UTILITY("DIK",$J,XBRXREF("DIK FILE"),XBRXREF("DIK FIELD"),XBRXREF("DIK XREF"))) Q:XBRXREF("DIK XREF")=""  D SETUPD
        Q
        ;
SETUPD  ; KILL OFF DIK XREFS NOT NEEDED
        I '$D(^TMP("XBRXREF",$J,XBRXREF("DIK FILE"),XBRXREF("DIK FIELD"),XBRXREF("DIK XREF"))) KILL ^UTILITY("DIK",$J,XBRXREF("DIK FILE"),XBRXREF("DIK FIELD"),XBRXREF("DIK XREF")) Q
        Q
        ;
KILL    ; KILL XREFS
        S XBRXREF("FILE")=""
        F XBRXREF("L")=0:0 S XBRXREF("FILE")=$O(^TMP("XBRXREF",$J,XBRXREF("FILE"))) Q:XBRXREF("FILE")=""  D KILL2
        Q
        ;
KILL2   ;
        S XBRXREF("FIELD")=""
        F XBRXREF("L")=0:0 S XBRXREF("FIELD")=$O(^TMP("XBRXREF",$J,XBRXREF("FILE"),XBRXREF("FIELD"))) Q:XBRXREF("FIELD")=""  D KILL3
        Q
KILL3   ;
        S XBRXREF("XREF")=""
        F XBRXREF("L")=0:0 S XBRXREF("XREF")=$O(^TMP("XBRXREF",$J,XBRXREF("FILE"),XBRXREF("FIELD"),XBRXREF("XREF"))) Q:XBRXREF("XREF")=""  S X=^(XBRXREF("XREF")) W !,"Killing ",X KILL @(XBRXREF("GBL")_"X)")
        Q
        ;
XREF    ; SET XREFS FOR ALL ENTRIES
        D NOW^%DTC
        S Y=%
        X ^DD("DD")
        W !!,"Beginning run at ",$P(Y,"@",2)," <WAIT>"
        S (DA,DCNT)=0
        D CNT^DIK1
        Q
        ;
EOJ     ; EOJ HOUSEKEEPING
        I 'XBRXREF("QFLG") D NOW^%DTC S Y=% X ^DD("DD") W !!,"Finished run at ",$P(Y,"@",2)
        KILL XBRXREF,%,%H,%I,DA,DCNT,DIC,DIK,X,Y,^TMP("XBRXREF",$J),^UTILITY("DIK",$J)
        Q
        ;