GORM (varchar .save(), non DATE): ORA-01861: literal does not match format string - grails-orm

Question

Hello I'm receiving a very strange error: ORA-01861: literal does not match format string. All my internet searching has related to DATE issues. Mine is just to save a simple string. If you see the issue please let me know how to fix it.
Column of issue
TREND: VARCHAR2(31, CHAR), no constraints
Mapped in GORM by:
String trend
...
static constraints = {
trend(nullable: true, blank: true)
... } ...
static mapping = {
trend column: "TREND", sqlType: "varchar(31)"
...}
Issue method:
def fix_trend(){
// There should ever only be three values found in the trend column
// of the Reports table: "TRENDING UP", "TRENDING STEADY", "TRENDING DOWN"
println "Running groovy database procedure : fix_trend"
StatusReport.list().each{
String trend = it.trend
if (trend != 'TRENDING UP' && trend != 'TRENDING STEADY' && trend != 'TRENDING DOWN'){
trend = trend?.toUpperCase()
if (trend == null){
trend = 'TRENDING STEADY'
}
else if (trend.contains('UP')){
trend = 'TRENDING UP';
}
else if (trend.contains('DOWN')){
trend = 'TRENDING DOWN';
}
else{
trend = 'TRENDING STEADY';
}
it.trend = trend;
it.save();
}
}
println "fix_trend completed"
}
The purpose of the method is to ensure all the values are either TRENDING UP, TRENDING DOWN, or TRENDING STEADY.
Stacktrace:
Running groovy database procedure : fix_trend
fix_trend completed
Error |
2015-01-05 10:53:02,392 [http-bio-8080-exec-4] ERROR spi.SqlExceptionHelper - ORA-01861: literal does not match format string
Error |
2015-01-05 10:53:02,481 [http-bio-8080-exec-4] ERROR errors.GrailsExceptionResolver - SQLDataException occurred when processing request: [GET] /investigator/statusReports/selection
ORA-01861: literal does not match format string
. Stacktrace follows:
Message: ORA-01861: literal does not match format string
Line | Method
->> 439 | processError in oracle.jdbc.driver.T4CTTIoer
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
| 395 | processError in ''
| 802 | processError . . . . in oracle.jdbc.driver.T4C8Oall
| 436 | receive in oracle.jdbc.driver.T4CTTIfun
| 186 | doRPC . . . . . . . in ''
| 521 | doOALL in oracle.jdbc.driver.T4C8Oall
| 205 | doOall8 . . . . . . in oracle.jdbc.driver.T4CPreparedStatement
| 1008 | executeForRows in ''
| 1307 | doExecuteWithTimeout in oracle.jdbc.driver.OracleStatement
| 3449 | executeInternal in oracle.jdbc.driver.OraclePreparedStatement
| 3530 | executeUpdate . . . in ''
| 1350 | executeUpdate in oracle.jdbc.driver.OraclePreparedStatementWrapper
| 16 | selection . . . . . in investigator.StatusReportsController
| 198 | doFilter in grails.plugin.cache.web.filter.PageFragmentCachingFilter
| 63 | doFilter . . . . . . in grails.plugin.cache.web.filter.AbstractFilter
| 1145 | runWorker in java.util.concurrent.ThreadPoolExecutor
| 615 | run . . . . . . . . in java.util.concurrent.ThreadPoolExecutor$Worker
^ 745 | run in java.lang.Thread

Answer 1

I solved my own issue.
There was a Date field in the table that was misrepresented as a String in the Domain class. Even though I was trying to update a VARCHAR2 field the domain_class.save() method updates every attribute of that domain_class-- thus the error was not associated with the TREND field but the misrepresented DATE field.
I figured this out by adding to DataSource.groovy
logSql = true
formatSql = true
and Config.groovy
log4j.main = {
trace 'org.hibernate.type'
debug 'org.hibernate.SQL'
...
This showed that the update statement generated by .save() tries to update EVERY attribute.
Hope this helps someone in the future.