MongoDb Select Query Issue Whit Regular Expression (Starts whit and Ends Whit)

问题

I need a regular expression to validate a String like this:

1678;1678;1678;1678 and 1;0;1;1;0;1

I tried to use this pattern:

db.getCollection('CollectionName').find(
    {
    "magnitude": /^[1678][1678]$/,
    "flag": /^[1][1]$/
    }
)

but it doesnt works, i try this two patterns that works separate but not both at the same time

db.getCollection('CollectionName').find(
    {
        "magnitude": /[1678]$/,
        "flag": /[1]$/
    }
)

db.getCollection('CollectionName').find(
    {
       "magnitude": /^[1678]/,
       "flag": /^[1]/
    }
)

I didnt find any character like * in SQL to use in this

I am using robomongo 1.0.0 for querys

I will apreciate any help

Thanks in advance

回答1:

If you want to match more than one ; separated strings then use capturing groups.

db.getCollection('CollectionName').find(
    {
       "magnitude": /^1678(;1678)*$/,
       "flag": /^[01](;[01])*$/
    }
)

(;1678)* matches the string ;1678, zero or more times.

[01] matches either 0 OR 1

来源：https://stackoverflow.com/questions/43651173/mongodb-select-query-issue-whit-regular-expression-starts-whit-and-ends-whit