Difference between revisions of "GETFLDSTATE()"
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==Purpose== | ==Purpose== | ||
| − | Function to | + | Function to to check if a field has been modified |
==Syntax== | ==Syntax== | ||
| − | GETFLDSTATE() | + | GETFLDSTATE(<expC> | <expN1>, <expN2> [, <workarea | alias>]) |
| Line 12: | Line 12: | ||
==Description== | ==Description== | ||
| + | The GETFLDSTATE() function can be used to check if a field has been modified. The field can be specified using the field name in <expC> or the field number in <expN1>. GETFLDSTATE() returns the values below. | ||
| + | |||
| + | If the optional <workarea | alias> is specified, then the function will operate in the required location. | ||
| + | |||
| + | ====Return value==== | ||
| + | {| class="wikitable" | ||
| + | !Value||Description | ||
| + | |- | ||
| + | |1||Field has not been modified | ||
| + | |- | ||
| + | |2||Field has been modified | ||
| + | |- | ||
| + | |} | ||
| Line 17: | Line 30: | ||
==Example== | ==Example== | ||
<code lang="recital"> | <code lang="recital"> | ||
| + | close databases | ||
| + | clear | ||
| + | set exclusive off | ||
| + | open database southwind | ||
| + | use customers | ||
| + | // Set to known value before start | ||
| + | replace customerid with "ALFKI" | ||
| + | |||
| + | cursorsetprop("Buffering", 5, "customers") | ||
| + | messagebox("Buffering set to " +etos(cursorgetprop("Buffering"))) | ||
| + | |||
| + | ? "Original customerid value: " + customerid | ||
| + | ? "Curval(): " + curval("customerid") | ||
| + | ? "Oldval(): " + oldval("customerid") | ||
| + | ? "Fieldstate at start: " + getfldstate("customerid") | ||
| + | |||
| + | replace customerid WITH "RECIT" | ||
| + | |||
| + | // Alter in another session | ||
| + | ! recital -c "update southwind\!customers set customerid = 'MULTI' where recno() = 1" | ||
| + | ? "Someone else just updated the record!" | ||
| + | ? "New customerid value: " + customerid | ||
| + | ? "Curval(): " + curval("customerid") | ||
| + | ? "Oldval(): " + oldval("customerid") | ||
| + | ? "Fieldstate after replace: " + getfldstate("customerid") | ||
| + | tablerevert(.T.) | ||
| + | |||
| + | ? "Reverted customerid value: " + customerid | ||
| + | ? "Curval(): " + curval("customerid") | ||
| + | ? "Oldval(): " + oldval("customerid") | ||
| + | ? "Fieldstate after revert: " + getfldstate("customerid") | ||
| + | replace customerid WITH "RECIT" | ||
| + | ? "New customerid value: " + customerid | ||
| + | tableupdate(.T.) | ||
| + | ? "Updated customerid value: " + customerid | ||
| + | ? "Curval(): " + curval("customerid") | ||
| + | ? "Oldval(): " + oldval("customerid") | ||
| + | ? "Fieldstate after replace and update: " + getfldstate("customerid") | ||
| + | ? | ||
</code> | </code> | ||
Latest revision as of 11:25, 22 August 2011
Purpose
Function to to check if a field has been modified
Syntax
GETFLDSTATE(<expC> | <expN1>, <expN2> [, <workarea | alias>])
See Also
CURSORGETPROP(), CURSORSETPROP(), CURVAL(), OLDVAL(), TABLEREVERT(), TABLEUPDATE(), SETFLDSTATE()
Description
The GETFLDSTATE() function can be used to check if a field has been modified. The field can be specified using the field name in <expC> or the field number in <expN1>. GETFLDSTATE() returns the values below.
If the optional <workarea | alias> is specified, then the function will operate in the required location.
Return value
| Value | Description |
|---|---|
| 1 | Field has not been modified |
| 2 | Field has been modified |
Example
close databases clear set exclusive off open database southwind use customers // Set to known value before start replace customerid with "ALFKI" cursorsetprop("Buffering", 5, "customers") messagebox("Buffering set to " +etos(cursorgetprop("Buffering"))) ? "Original customerid value: " + customerid ? "Curval(): " + curval("customerid") ? "Oldval(): " + oldval("customerid") ? "Fieldstate at start: " + getfldstate("customerid") replace customerid WITH "RECIT" // Alter in another session ! recital -c "update southwind\!customers set customerid = 'MULTI' where recno() = 1" ? "Someone else just updated the record!" ? "New customerid value: " + customerid ? "Curval(): " + curval("customerid") ? "Oldval(): " + oldval("customerid") ? "Fieldstate after replace: " + getfldstate("customerid") tablerevert(.T.) ? "Reverted customerid value: " + customerid ? "Curval(): " + curval("customerid") ? "Oldval(): " + oldval("customerid") ? "Fieldstate after revert: " + getfldstate("customerid") replace customerid WITH "RECIT" ? "New customerid value: " + customerid tableupdate(.T.) ? "Updated customerid value: " + customerid ? "Curval(): " + curval("customerid") ? "Oldval(): " + oldval("customerid") ? "Fieldstate after replace and update: " + getfldstate("customerid") ?
Products
Recital, Recital Server
