[BUG] CSV reports will fail when a date field is an empty list #262
Description
Describe the bug
- Error message
{"statusCode":500,"error":"Internal Server Error","message":"Cannot read property '0' of undefined"}
For example
- mapping:
{
"test" : {
"mappings" : {
"properties" : {
"@timestamp" : {
"type" : "date"
},
"dates" : {
"type" : "date"
},
"message" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
}
}
}
}
}
- sample data
{
"_index" : "test",
"_type" : "_doc",
"_id" : "5",
"_score" : 1.0,
"_source" : {
"@timestamp" : "2021-12-17T14:03:21",
"message" : "first",
"dates" : [ ]
}
},
{
"_index" : "test",
"_type" : "_doc",
"_id" : "4",
"_score" : 1.0,
"_source" : {
"@timestamp" : "2021-12-17T14:03:21",
"message" : "first",
"dates" : [
"2021-12-17T14:04:55",
"2021-12-17T14:03:55"
]
}
},
- in Discover
Root cause
This code is causing the issue.
if (data._source[dateType]) will pass for an empty list, and failed the following logic. Need to put more restriction on this check. Also, for logic of parsing the only the first elements doesn't seem right. It should parse everything.
To Reproduce
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- Click on '....'
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- See error
Expected behavior
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Plugins
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Host/Environment (please complete the following information):
- OS: [e.g. iOS]
- Version [e.g. 22]
Additional context
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