| [645] | 1 | BMXADO2 ; IHS/CIHA/GIS - BMX ADO RECORDSET UTILS ;
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| [1209] | 2 | ;;2.31;BMX;;Jul 25, 2011
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| [645] | 3 | ;
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| 4 | ;
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| 5 | GEN(BMXY,BMXF) ;EP - Generate an ADO Schema string from a list of fields
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| 6 | ;BMXY Is an out-parameter called by reference.
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| 7 | ;On return, BMXY will be a zero-based one-dimensional array each node of which will
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| 8 | ;contain the schema corresponding to the fields info in BMXF
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| 9 | ;
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| 10 | ;BMXF is an in-parameter called by reference.
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| 11 | ;On input, BMXF will contain the field info on which to build the schema string.
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| 12 | ;
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| 13 | ;Field info in BMXF is arranged in a zero-based one-dimensional array.
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| 14 | ;Node 0 of BMXF contains the KEYFIELDNAME^FILENUMBER^READONLY
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| 15 | ;where KEYFIELDNAME is the name of the unique key field in the database and
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| 16 | ;FILENUMBER is the FileMan file number and
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| 17 | ;READONLY denotes whether the entire recordset is updateable.
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| 18 | ;
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| 19 | ;Each subsequent node of the BMXF arrray contains field info in the form
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| 20 | ;1FILE#^2FIELD#^3LENGTH^4DATATYPE^5ALIAS^6READONLY^7KEYFIELD^8NULLOK
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| 21 | ;If FILE# AND FIELD# are defined, the LENGTH and DATATYPE will be taken from the FileMan data dictionary
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| 22 | ;If ALIAS is defined, the schema string will use ALIAS as the column name
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| 23 | ;READONLY, KEYFIELD and NULLOK are binary fields. Note that there should be only one field
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| 24 | ;in the recordset having KEYFIELD=TRUE
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| 25 | ;
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| 26 | ;New column info format is @@@meta@@@KEYFIELD|FILE#
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| 27 | ; For each field: ^1FILE#|2FIELD#|3DATATYPE|4LENGTH|5FIELDNAME|6READONLY|7KEYFIELD|8NULL ALLOWED
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| 28 | ;example:
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| 29 | ;BMXY(0)="@@@meta@@@BMXIEN|2160010^"
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| 30 | ;BMXY(1)="2160010|.001|I|10|BMXIEN|TRUE|TRUE|FALSE^"
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| 31 | ;
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| 32 | S BMXY(0)="@@@meta@@@"_$G(BMXF(0))
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| 33 | N BMXI,BMXS,BMXFM,BMXDD,BMXTYP,BMXLEN,BMXLEN2,BMXNAM,BMXKEY,BMXREAD,BMXNULL
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| 34 | S BMXI=0
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| 35 | F S BMXI=$O(BMXF(BMXI)) Q:'+BMXI D
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| 36 | . N BMXFM,BMXDD,BMXTYP,BMXLEN,BMXLEN2,BMXNAM,BMXKEY,BMXREAD,BMXNULL
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| 37 | . S (BMXDD,BMXTYP,BMXLEN,BMXLEN2,BMXNAM,BMXKEY,BMXREAD,BMXNULL)=""
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| 38 | . S BMXFM=0 ;Flag indicating whether BMXF(BMXI) is a FileMan field
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| 39 | . S BMXY(BMXI)=""
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| 40 | . I BMXF(BMXI) S BMXY(BMXI)=$P(BMXF(BMXI),U,1,2) S BMXFM=1
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| 41 | . I BMXFM D ;Look in ^DD for attributes
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| 42 | . . S BMXDD=$G(^DD($P(BMXF(BMXI),U),$P(BMXF(BMXI),U,2),0))
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| 43 | . . ;column name
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| 44 | . . S BMXNAM=$P(BMXDD,U)
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| 45 | . . S BMXNAM=$TR(BMXNAM," ","_")
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| 46 | . . ;Data type
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| 47 | . . I $P(BMXDD,U,2)["P" S BMXDD=$$PTYPE(BMXDD)
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| 48 | . . S BMXTYP=$P(BMXDD,U,2)
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| 49 | . . S BMXTYP=$S(BMXTYP["F":"T",BMXTYP["S":"T",BMXTYP["D":"D")
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| 50 | . . I BMXTYP["N" S BMXTYP=$S($P(BMXTYP,",",2)>0:"N",1:"I")
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| 51 | . . ;default columnn lengths based on type
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| 52 | . . I BMXTYP="N"!(BMXTYP="I") S BMXLEN=$P(BMXDD,U,2),BMXLEN=$P(BMXLEN,","),BMXLEN=$E(BMXLEN,3,$L(BMXLEN))
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| 53 | . . I BMXTYP="I" S BMXLEN2=$P(BMXDD,U,2),BMXLEN2=$P(BMXLEN,",",2),BMXLEN=BMXLEN+BMXLEN2+1
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| 54 | . . I BMXTYP="T" S BMXLEN=0
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| 55 | . . I BMXTYP="D" S BMXLEN=30
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| 56 | . . S BMXNULL="TRUE" S:$P(BMXDD,U,2)["R" BMXNULL="FALSE"
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| 57 | . ;Look in BMXF for user-specified attributes
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| 58 | . S:$P(BMXF(BMXI),U,5)]"" BMXNAM=$P(BMXF(BMXI),U,5) ;Alias
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| 59 | . ;Set KEY, NULL and READONLY
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| 60 | . S BMXNULL="TRUE",BMXREAD="TRUE",BMXKEY="FALSE"
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| 61 | . I $P(BMXF(BMXI),U,7)="TRUE" S BMXKEY="TRUE",BMXNULL="FALSE",BMXREAD="TRUE"
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| 62 | . E S:$P(BMXF(BMXI),U,8)]"" BMXNULL=$P(BMXF(BMXI),U,8) S:$P(BMXF(BMXI),U,6)]"" BMXREAD=$P(BMXF(BMXI),U,6)
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| 63 | . ;Set BMXY node
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| 64 | . S $P(BMXY(BMXI),"|",3)=BMXTYP
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| 65 | . S $P(BMXY(BMXI),"|",4)=BMXLEN
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| 66 | . S $P(BMXY(BMXI),"|",5)=BMXNAM
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| 67 | . S $P(BMXY(BMXI),"|",6)=BMXREAD
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| 68 | . S $P(BMXY(BMXI),"|",7)=BMXKEY
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| 69 | . S $P(BMXY(BMXI),"|",8)=BMXNULL
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| 70 | ;
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| 71 | Q
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| 72 | PTYPE(BMXDD) ;
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| 73 | ;Traverse pointer chain to retrieve data type of pointed-to field
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| 74 | N BMXFILE
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| 75 | I $P(BMXDD,U,2)'["P" Q BMXDD
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| 76 | S BMXFILE=$P(BMXDD,U,2)
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| 77 | S BMXFILE=+$P(BMXFILE,"P",2)
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| 78 | S BMXDD=$G(^DD(BMXFILE,".01",0))
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| 79 | S BMXDD=$$PTYPE(BMXDD)
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| 80 | Q BMXDD
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