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7ea066c8d1
Add a new type to use for building filter predicates for API requests, replacing "./api/types/filters".Args in the client. Remove the now unused api/types/filters package. Signed-off-by: Cory Snider <csnider@mirantis.com>
47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
package client
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import (
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"encoding/json"
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"net/url"
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)
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// Filters describes a predicate for an API request.
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//
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// Each entry in the map is a filter term.
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// Each term is evaluated against the set of values.
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// A filter term is satisfied if any one of the values in the set is a match.
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// An item matches the filters when all terms are satisfied.
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//
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// Like all other map types in Go, the zero value is empty and read-only.
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type Filters map[string]map[string]bool
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// Add appends values to the value-set of term.
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//
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// The receiver f is returned for chaining.
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//
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// f := make(Filters).Add("name", "foo", "bar").Add("status", "exited")
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func (f Filters) Add(term string, values ...string) Filters {
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if _, ok := f[term]; !ok {
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f[term] = make(map[string]bool)
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}
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for _, v := range values {
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f[term][v] = true
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}
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return f
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}
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// updateURLValues sets the "filters" key in values to the marshalled value of
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// f, replacing any existing values. When f is empty, any existing "filters" key
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// is removed.
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func (f Filters) updateURLValues(values url.Values) {
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if len(f) > 0 {
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b, err := json.Marshal(f)
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if err != nil {
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panic(err) // Marshaling builtin types should never fail
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}
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values.Set("filters", string(b))
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} else {
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values.Del("filters")
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}
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}
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