cgalo5758
2e4b065e99
Introduce web.FieldErrors for server-side per-field messages. Update templates to render is-invalid/invalid-feedback and add a fieldErr template helper that scopes errors to a specific form instance. Update operator handlers to validate inputs, populate FieldErrors, and render form-specific error state; add a no-op fieldErr stub to fedwiki partials so parsing succeeds.
47 lines
1.7 KiB
Go
47 lines
1.7 KiB
Go
// Package web holds small, framework-agnostic helpers shared across HTTP
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// handlers — things that don't fit cleanly in `server` (because they have
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// no handler-specific state) and shouldn't pull in domain dependencies.
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package web
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// FieldErrors maps form-field names to human-readable error messages.
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//
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// Convention per docs/operator-ux-conventions.md §6: every form that mutates
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// revalidates server-side and renders field-level errors. Handler builds a
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// FieldErrors map during validation; on failure returns 422 with the form
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// partial + populated map. Templates render `is-invalid` + `<div class=
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// "invalid-feedback">` per field by looking the field name up in the map.
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//
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// Templates read it with `{{ index .FieldErrors "field_name" }}`, which
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// returns the empty string if the field has no error (`with` and `if`
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// branch on that cleanly).
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type FieldErrors map[string]string
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// New returns an empty FieldErrors map ready to populate.
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func New() FieldErrors {
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return make(FieldErrors)
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}
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// Set records an error for one field. Multiple calls with the same field
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// keep only the last message — the convention is one concise, actionable
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// message per field, not a list.
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func (e FieldErrors) Set(field, msg string) {
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e[field] = msg
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}
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// Get returns the error for one field, or empty string if there is none.
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func (e FieldErrors) Get(field string) string {
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return e[field]
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}
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// Has reports whether a specific field has an error.
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func (e FieldErrors) Has(field string) bool {
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_, ok := e[field]
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return ok
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}
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// Any reports whether any field has an error. Use this as the handler's
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// branch point: `if errs.Any() { ...return 422... }`.
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func (e FieldErrors) Any() bool {
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return len(e) > 0
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}
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