gin/input_holder.go

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// Copyright 2014 Manu Martinez-Almeida. All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file.
package gin
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// Param is a single URL parameter, consisting of a key and a value.
type Param struct {
Key string
Value string
}
// Params is a Param-slice, as returned by the router.
// The slice is ordered, the first URL parameter is also the first slice value.
// It is therefore safe to read values by the index.
type Params []Param
// ByName returns the value of the first Param which key matches the given name.
// If no matching Param is found, an empty string is returned.
func (ps Params) ByName(name string) string {
for _, entry := range ps {
if entry.Key == name {
return entry.Value
}
}
return ""
}
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type inputHolder struct {
context *Context
}
func (i inputHolder) FromGET(key string) (va string) {
va, _ = i.fromGET(key)
return
}
func (i inputHolder) FromPOST(key string) (va string) {
va, _ = i.fromPOST(key)
return
}
func (i inputHolder) Get(key string) string {
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if value, exists := i.fromPOST(key); exists {
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return value
}
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if value, exists := i.fromGET(key); exists {
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return value
}
return ""
}
func (i inputHolder) fromGET(key string) (string, bool) {
req := i.context.Request
req.ParseForm()
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if values, ok := req.Form[key]; ok && len(values) > 0 {
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return values[0], true
}
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return "", false
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}
func (i inputHolder) fromPOST(key string) (string, bool) {
req := i.context.Request
req.ParseForm()
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if values, ok := req.PostForm[key]; ok && len(values) > 0 {
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return values[0], true
}
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return "", false
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}