102 lines
2.5 KiB
Go
102 lines
2.5 KiB
Go
package main
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import (
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"errors"
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"fmt"
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"net/http"
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"strconv"
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"github.com/julienschmidt/httprouter"
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"snippetbox.chaosfem.tw/internal/models"
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"snippetbox.chaosfem.tw/internal/validator"
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)
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// home ...
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func (app *application) home(w http.ResponseWriter, r *http.Request) {
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snippets, err := app.snippets.Latest()
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if err != nil {
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app.serverError(w, r, err)
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return
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}
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data := app.newTemplateData(r)
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data.Snippets = snippets
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app.render(w, r, http.StatusOK, "home.tmpl", data)
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}
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// snippetView ...
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func (app *application) snippetView(w http.ResponseWriter, r *http.Request) {
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params := httprouter.ParamsFromContext(r.Context())
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id, err := strconv.Atoi(params.ByName("id"))
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if err != nil || id < 1 {
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app.notFound(w)
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return
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}
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snippet, err := app.snippets.Get(id)
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if err != nil || id < 1 {
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if errors.Is(err, models.ErrNoRecord) {
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app.notFound(w)
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} else {
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app.serverError(w, r, err)
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}
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return
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}
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data := app.newTemplateData(r)
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data.Snippet = snippet
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app.render(w, r, http.StatusOK, "view.tmpl", data)
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}
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// (app *application) snippetCreate ...
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func (app *application) snippetCreate(w http.ResponseWriter, r *http.Request) {
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data := app.newTemplateData(r)
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data.Form = snippetCreateForm{
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Expires: 365,
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}
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app.render(w, r, http.StatusOK, "create.tmpl", data)
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}
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type snippetCreateForm struct {
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Title string `form:"title"`
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Content string `form:"content"`
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Expires int `form:"expires"`
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validator.Validator `form:"-"`
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}
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// snippetCreatePost ...
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func (app *application) snippetCreatePost(w http.ResponseWriter, r *http.Request) {
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var form snippetCreateForm
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err := app.decodePostForm(r, &form)
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if err != nil {
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app.clientError(w, http.StatusBadRequest)
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return
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}
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form.CheckField(validator.NotBlank(form.Title), "title", "This field cannot be blank")
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form.CheckField(validator.MaxChars(form.Title, 100), "title", "This field cannot be more than 100 characters long")
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form.CheckField(validator.NotBlank(form.Content), "content", "This field cannot be blank")
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form.CheckField(validator.PermittedValue(form.Expires, 1, 7, 365), "expires", "This field must equal 1, 7 or 365")
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if !form.Valid() {
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data := app.newTemplateData(r)
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data.Form = form
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app.render(w, r, http.StatusUnprocessableEntity, "create.tmpl", data)
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return
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}
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id, err := app.snippets.Insert(form.Title, form.Content, form.Expires)
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if err != nil {
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app.serverError(w, r, err)
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return
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}
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http.Redirect(w, r, fmt.Sprintf("/snippet/view/%d", id), http.StatusSeeOther)
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}
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