42 lines
1.2 KiB
V
42 lines
1.2 KiB
V
module models
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// from_params<T> creates a new instance of T from the given map by parsing all
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// of its fields from the map.
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pub fn from_params<T>(params map[string]string) ?T {
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mut o := T{}
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patch_from_params<T>(mut o, params)?
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return o
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}
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// patch_from_params<T> updates the given T object with the params defined in
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// the map.
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pub fn patch_from_params<T>(mut o T, params map[string]string) ? {
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$for field in T.fields {
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if field.name in params && params[field.name] != '' {
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$if field.typ is string {
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o.$(field.name) = params[field.name]
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} $else $if field.typ is int {
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o.$(field.name) = params[field.name].int()
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} $else $if field.typ is u64 {
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o.$(field.name) = params[field.name].u64()
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} $else $if field.typ is []GitRepoArch {
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o.$(field.name) = params[field.name].split(',').map(GitRepoArch{ value: it })
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}
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} else if field.attrs.contains('nonull') {
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return error('Missing parameter: ${field.name}.')
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}
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}
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}
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// params_from<T> converts a given T struct into a map of strings.
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pub fn params_from<T>(o &T) map[string]string {
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mut out := map[string]string{}
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$for field in T.fields {
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out[field.name] = o.$(field.name).str()
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}
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return out
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}
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