/
query_args_helpers.go
84 lines (73 loc) · 2.37 KB
/
query_args_helpers.go
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package modconfig
import (
"fmt"
"log/slog"
"strings"
"github.com/turbot/go-kit/helpers"
"github.com/turbot/pipe-fittings/utils"
)
// MergeArgs ensures base and runtime args are non nil and merges them into single args
func MergeArgs(queryProvider QueryProvider, runtimeArgs *QueryArgs) (*QueryArgs, error) {
baseArgs := queryProvider.GetArgs()
// ensure non nil
if baseArgs == nil {
baseArgs = NewQueryArgs()
}
if runtimeArgs == nil {
runtimeArgs = NewQueryArgs()
}
return baseArgs.Merge(runtimeArgs, queryProvider)
}
// ResolveArgs resolves the argument values,
// falling back on defaults from param definitions in the source (if present)
// it returns the arg values as a csv string which can be used in a query invocation
// (the arg values and param defaults will already have been converted to postgres format)
func ResolveArgs(qp QueryProvider, runtimeArgs *QueryArgs) ([]any, error) {
var argVals []any
var missingParams []string
var err error
// validate args
if runtimeArgs == nil {
runtimeArgs = &QueryArgs{}
}
// merge the query provider args (if any) with the runtime args
sourceArgs := qp.GetArgs()
if sourceArgs == nil {
sourceArgs = &QueryArgs{}
}
mergedArgs, err := sourceArgs.Merge(runtimeArgs, qp)
if err != nil {
return nil, err
}
if namedArgCount := len(mergedArgs.ArgMap); namedArgCount > 0 {
// if named args are provided and the query does not define params, we cannot resolve the args
if len(qp.GetParams()) == 0 {
slog.Warn(fmt.Sprintf("%s defines %d named %s but has no parameters definitions", qp.Name(), namedArgCount, utils.Pluralize("arg", namedArgCount)))
} else {
// do params contain named params?
argVals, missingParams, err = mergedArgs.resolveNamedParameters(qp)
}
} else {
// resolve as positional parameters
// (or fall back to defaults if no positional params are present)
argVals, missingParams, err = mergedArgs.resolvePositionalParameters(qp)
}
if err != nil {
return nil, err
}
// did we resolve them all?
if len(missingParams) > 0 {
// a better error will be constructed by the calling code
return nil, fmt.Errorf("%s", strings.Join(missingParams, ","))
}
// are there any params?
if len(argVals) == 0 {
return nil, nil
}
// convert any array args into a strongly typed array
for i, v := range argVals {
argVals[i] = helpers.AnySliceToTypedSlice(v)
}
// success!
return argVals, nil
}