hugo content_map_page 源码
hugo content_map_page 代码
文件路径：/hugolib/content_map_page.go
// Copyright 2019 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package hugolib
import (
"context"
"fmt"
"path"
"path/filepath"
"strings"
"sync"
"github.com/gohugoio/hugo/common/maps"
"github.com/gohugoio/hugo/common/types"
"github.com/gohugoio/hugo/resources"
"github.com/gohugoio/hugo/common/hugio"
"github.com/gohugoio/hugo/hugofs"
"github.com/gohugoio/hugo/hugofs/files"
"github.com/gohugoio/hugo/parser/pageparser"
"github.com/gohugoio/hugo/resources/page"
"github.com/gohugoio/hugo/resources/resource"
"github.com/spf13/cast"
"github.com/gohugoio/hugo/common/para"
)
func newPageMaps(h *HugoSites) *pageMaps {
mps := make([]*pageMap, len(h.Sites))
for i, s := range h.Sites {
mps[i] = s.pageMap
}
return &pageMaps{
workers: para.New(h.numWorkers),
pmaps: mps,
}
}
type pageMap struct {
s *Site
*contentMap
}
func (m *pageMap) Len() int {
l := 0
for _, t := range m.contentMap.pageTrees {
l += t.Len()
}
return l
}
func (m *pageMap) createMissingTaxonomyNodes() error {
if m.cfg.taxonomyDisabled {
return nil
}
m.taxonomyEntries.Walk(func(s string, v any) bool {
n := v.(*contentNode)
vi := n.viewInfo
k := cleanSectionTreeKey(vi.name.plural + "/" + vi.termKey)
if _, found := m.taxonomies.Get(k); !found {
vic := &contentBundleViewInfo{
name: vi.name,
termKey: vi.termKey,
termOrigin: vi.termOrigin,
}
m.taxonomies.Insert(k, &contentNode{viewInfo: vic})
}
return false
})
return nil
}
func (m *pageMap) newPageFromContentNode(n *contentNode, parentBucket *pagesMapBucket, owner *pageState) (*pageState, error) {
if n.fi == nil {
panic("FileInfo must (currently) be set")
}
f, err := newFileInfo(m.s.SourceSpec, n.fi)
if err != nil {
return nil, err
}
meta := n.fi.Meta()
content := func() (hugio.ReadSeekCloser, error) {
return meta.Open()
}
bundled := owner != nil
s := m.s
sections := s.sectionsFromFile(f)
kind := s.kindFromFileInfoOrSections(f, sections)
if kind == page.KindTerm {
s.PathSpec.MakePathsSanitized(sections)
}
metaProvider := &pageMeta{kind: kind, sections: sections, bundled: bundled, s: s, f: f}
ps, err := newPageBase(metaProvider)
if err != nil {
return nil, err
}
if n.fi.Meta().IsRootFile {
// Make sure that the bundle/section we start walking from is always
// rendered.
// This is only relevant in server fast render mode.
ps.forceRender = true
}
n.p = ps
if ps.IsNode() {
ps.bucket = newPageBucket(ps)
}
gi, err := s.h.gitInfoForPage(ps)
if err != nil {
return nil, fmt.Errorf("failed to load Git data: %w", err)
}
ps.gitInfo = gi
owners, err := s.h.codeownersForPage(ps)
if err != nil {
return nil, fmt.Errorf("failed to load CODEOWNERS: %w", err)
}
ps.codeowners = owners
r, err := content()
if err != nil {
return nil, err
}
defer r.Close()
parseResult, err := pageparser.Parse(
r,
pageparser.Config{EnableEmoji: s.siteCfg.enableEmoji},
)
if err != nil {
return nil, err
}
ps.pageContent = pageContent{
source: rawPageContent{
parsed: parseResult,
posMainContent: -1,
posSummaryEnd: -1,
posBodyStart: -1,
},
}
if err := ps.mapContent(parentBucket, metaProvider); err != nil {
return nil, ps.wrapError(err)
}
if err := metaProvider.applyDefaultValues(n); err != nil {
return nil, err
}
ps.init.Add(func() (any, error) {
pp, err := newPagePaths(s, ps, metaProvider)
if err != nil {
return nil, err
}
outputFormatsForPage := ps.m.outputFormats()
// Prepare output formats for all sites.
// We do this even if this page does not get rendered on
// its own. It may be referenced via .Site.GetPage and
// it will then need an output format.
ps.pageOutputs = make([]*pageOutput, len(ps.s.h.renderFormats))
created := make(map[string]*pageOutput)
shouldRenderPage := !ps.m.noRender()
for i, f := range ps.s.h.renderFormats {
if po, found := created[f.Name]; found {
ps.pageOutputs[i] = po
continue
}
render := shouldRenderPage
if render {
_, render = outputFormatsForPage.GetByName(f.Name)
}
po := newPageOutput(ps, pp, f, render)
// Create a content provider for the first,
// we may be able to reuse it.
if i == 0 {
contentProvider, err := newPageContentOutput(ps, po)
if err != nil {
return nil, err
}
po.initContentProvider(contentProvider)
}
ps.pageOutputs[i] = po
created[f.Name] = po
}
if err := ps.initCommonProviders(pp); err != nil {
return nil, err
}
return nil, nil
})
ps.parent = owner
return ps, nil
}
func (m *pageMap) newResource(fim hugofs.FileMetaInfo, owner *pageState) (resource.Resource, error) {
if owner == nil {
panic("owner is nil")
}
// TODO(bep) consolidate with multihost logic + clean up
outputFormats := owner.m.outputFormats()
seen := make(map[string]bool)
var targetBasePaths []string
// Make sure bundled resources are published to all of the output formats'
// sub paths.
for _, f := range outputFormats {
p := f.Path
if seen[p] {
continue
}
seen[p] = true
targetBasePaths = append(targetBasePaths, p)
}
meta := fim.Meta()
r := func() (hugio.ReadSeekCloser, error) {
return meta.Open()
}
target := strings.TrimPrefix(meta.Path, owner.File().Dir())
return owner.s.ResourceSpec.New(
resources.ResourceSourceDescriptor{
TargetPaths: owner.getTargetPaths,
OpenReadSeekCloser: r,
FileInfo: fim,
RelTargetFilename: target,
TargetBasePaths: targetBasePaths,
LazyPublish: !owner.m.buildConfig.PublishResources,
})
}
func (m *pageMap) createSiteTaxonomies() error {
m.s.taxonomies = make(TaxonomyList)
var walkErr error
m.taxonomies.Walk(func(s string, v any) bool {
n := v.(*contentNode)
t := n.viewInfo
viewName := t.name
if t.termKey == "" {
m.s.taxonomies[viewName.plural] = make(Taxonomy)
} else {
taxonomy := m.s.taxonomies[viewName.plural]
if taxonomy == nil {
walkErr = fmt.Errorf("missing taxonomy: %s", viewName.plural)
return true
}
m.taxonomyEntries.WalkPrefix(s, func(ss string, v any) bool {
b2 := v.(*contentNode)
info := b2.viewInfo
taxonomy.add(info.termKey, page.NewWeightedPage(info.weight, info.ref.p, n.p))
return false
})
}
return false
})
for _, taxonomy := range m.s.taxonomies {
for _, v := range taxonomy {
v.Sort()
}
}
return walkErr
}
func (m *pageMap) createListAllPages() page.Pages {
pages := make(page.Pages, 0)
m.contentMap.pageTrees.Walk(func(s string, n *contentNode) bool {
if n.p == nil {
panic(fmt.Sprintf("BUG: page not set for %q", s))
}
if contentTreeNoListAlwaysFilter(s, n) {
return false
}
pages = append(pages, n.p)
return false
})
page.SortByDefault(pages)
return pages
}
func (m *pageMap) assemblePages() error {
m.taxonomyEntries.DeletePrefix("/")
if err := m.assembleSections(); err != nil {
return err
}
var err error
if err != nil {
return err
}
m.pages.Walk(func(s string, v any) bool {
n := v.(*contentNode)
var shouldBuild bool
defer func() {
// Make sure we always rebuild the view cache.
if shouldBuild && err == nil && n.p != nil {
m.attachPageToViews(s, n)
}
}()
if n.p != nil {
// A rebuild
shouldBuild = true
return false
}
var parent *contentNode
var parentBucket *pagesMapBucket
_, parent = m.getSection(s)
if parent == nil {
panic(fmt.Sprintf("BUG: parent not set for %q", s))
}
parentBucket = parent.p.bucket
n.p, err = m.newPageFromContentNode(n, parentBucket, nil)
if err != nil {
return true
}
shouldBuild = !(n.p.Kind() == page.KindPage && m.cfg.pageDisabled) && m.s.shouldBuild(n.p)
if !shouldBuild {
m.deletePage(s)
return false
}
n.p.treeRef = &contentTreeRef{
m: m,
t: m.pages,
n: n,
key: s,
}
if err = m.assembleResources(s, n.p, parentBucket); err != nil {
return true
}
return false
})
m.deleteOrphanSections()
return err
}
func (m *pageMap) assembleResources(s string, p *pageState, parentBucket *pagesMapBucket) error {
var err error
m.resources.WalkPrefix(s, func(s string, v any) bool {
n := v.(*contentNode)
meta := n.fi.Meta()
classifier := meta.Classifier
var r resource.Resource
switch classifier {
case files.ContentClassContent:
var rp *pageState
rp, err = m.newPageFromContentNode(n, parentBucket, p)
if err != nil {
return true
}
rp.m.resourcePath = filepath.ToSlash(strings.TrimPrefix(rp.File().Path(), p.File().Dir()))
r = rp
case files.ContentClassFile:
r, err = m.newResource(n.fi, p)
if err != nil {
return true
}
default:
panic(fmt.Sprintf("invalid classifier: %q", classifier))
}
p.resources = append(p.resources, r)
return false
})
return err
}
func (m *pageMap) assembleSections() error {
var sectionsToDelete []string
var err error
m.sections.Walk(func(s string, v any) bool {
n := v.(*contentNode)
var shouldBuild bool
defer func() {
// Make sure we always rebuild the view cache.
if shouldBuild && err == nil && n.p != nil {
m.attachPageToViews(s, n)
if n.p.IsHome() {
m.s.home = n.p
}
}
}()
sections := m.splitKey(s)
if n.p != nil {
if n.p.IsHome() {
m.s.home = n.p
}
shouldBuild = true
return false
}
var parent *contentNode
var parentBucket *pagesMapBucket
if s != "/" {
_, parent = m.getSection(s)
if parent == nil || parent.p == nil {
panic(fmt.Sprintf("BUG: parent not set for %q", s))
}
}
if parent != nil {
parentBucket = parent.p.bucket
} else if s == "/" {
parentBucket = m.s.siteBucket
}
kind := page.KindSection
if s == "/" {
kind = page.KindHome
}
if n.fi != nil {
n.p, err = m.newPageFromContentNode(n, parentBucket, nil)
if err != nil {
return true
}
} else {
n.p = m.s.newPage(n, parentBucket, kind, "", sections...)
}
shouldBuild = m.s.shouldBuild(n.p)
if !shouldBuild {
sectionsToDelete = append(sectionsToDelete, s)
return false
}
n.p.treeRef = &contentTreeRef{
m: m,
t: m.sections,
n: n,
key: s,
}
if err = m.assembleResources(s+cmLeafSeparator, n.p, parentBucket); err != nil {
return true
}
return false
})
for _, s := range sectionsToDelete {
m.deleteSectionByPath(s)
}
return err
}
func (m *pageMap) assembleTaxonomies() error {
var taxonomiesToDelete []string
var err error
m.taxonomies.Walk(func(s string, v any) bool {
n := v.(*contentNode)
if n.p != nil {
return false
}
kind := n.viewInfo.kind()
sections := n.viewInfo.sections()
_, parent := m.getTaxonomyParent(s)
if parent == nil || parent.p == nil {
panic(fmt.Sprintf("BUG: parent not set for %q", s))
}
parentBucket := parent.p.bucket
if n.fi != nil {
n.p, err = m.newPageFromContentNode(n, parent.p.bucket, nil)
if err != nil {
return true
}
} else {
title := ""
if kind == page.KindTerm {
title = n.viewInfo.term()
}
n.p = m.s.newPage(n, parent.p.bucket, kind, title, sections...)
}
if !m.s.shouldBuild(n.p) {
taxonomiesToDelete = append(taxonomiesToDelete, s)
return false
}
n.p.treeRef = &contentTreeRef{
m: m,
t: m.taxonomies,
n: n,
key: s,
}
if err = m.assembleResources(s+cmLeafSeparator, n.p, parentBucket); err != nil {
return true
}
return false
})
for _, s := range taxonomiesToDelete {
m.deleteTaxonomy(s)
}
return err
}
func (m *pageMap) attachPageToViews(s string, b *contentNode) {
if m.cfg.taxonomyDisabled {
return
}
for _, viewName := range m.cfg.taxonomyConfig {
vals := types.ToStringSlicePreserveString(getParam(b.p, viewName.plural, false))
if vals == nil {
continue
}
w := getParamToLower(b.p, viewName.plural+"_weight")
weight, err := cast.ToIntE(w)
if err != nil {
m.s.Log.Errorf("Unable to convert taxonomy weight %#v to int for %q", w, b.p.Pathc())
// weight will equal zero, so let the flow continue
}
for i, v := range vals {
termKey := m.s.getTaxonomyKey(v)
bv := &contentNode{
viewInfo: &contentBundleViewInfo{
ordinal: i,
name: viewName,
termKey: termKey,
termOrigin: v,
weight: weight,
ref: b,
},
}
var key string
if strings.HasSuffix(s, "/") {
key = cleanSectionTreeKey(path.Join(viewName.plural, termKey, s))
} else {
key = cleanTreeKey(path.Join(viewName.plural, termKey, s))
}
m.taxonomyEntries.Insert(key, bv)
}
}
}
type pageMapQuery struct {
Prefix string
Filter contentTreeNodeCallback
}
func (m *pageMap) collectPages(query pageMapQuery, fn func(c *contentNode)) error {
if query.Filter == nil {
query.Filter = contentTreeNoListAlwaysFilter
}
m.pages.WalkQuery(query, func(s string, n *contentNode) bool {
fn(n)
return false
})
return nil
}
func (m *pageMap) collectPagesAndSections(query pageMapQuery, fn func(c *contentNode)) error {
if err := m.collectSections(query, fn); err != nil {
return err
}
query.Prefix = query.Prefix + cmBranchSeparator
if err := m.collectPages(query, fn); err != nil {
return err
}
return nil
}
func (m *pageMap) collectSections(query pageMapQuery, fn func(c *contentNode)) error {
level := strings.Count(query.Prefix, "/")
return m.collectSectionsFn(query, func(s string, c *contentNode) bool {
if strings.Count(s, "/") != level+1 {
return false
}
fn(c)
return false
})
}
func (m *pageMap) collectSectionsFn(query pageMapQuery, fn func(s string, c *contentNode) bool) error {
if !strings.HasSuffix(query.Prefix, "/") {
query.Prefix += "/"
}
m.sections.WalkQuery(query, func(s string, n *contentNode) bool {
return fn(s, n)
})
return nil
}
func (m *pageMap) collectSectionsRecursiveIncludingSelf(query pageMapQuery, fn func(c *contentNode)) error {
return m.collectSectionsFn(query, func(s string, c *contentNode) bool {
fn(c)
return false
})
}
func (m *pageMap) collectTaxonomies(prefix string, fn func(c *contentNode)) error {
m.taxonomies.WalkQuery(pageMapQuery{Prefix: prefix}, func(s string, n *contentNode) bool {
fn(n)
return false
})
return nil
}
// withEveryBundlePage applies fn to every Page, including those bundled inside
// leaf bundles.
func (m *pageMap) withEveryBundlePage(fn func(p *pageState) bool) {
m.bundleTrees.Walk(func(s string, n *contentNode) bool {
if n.p != nil {
return fn(n.p)
}
return false
})
}
type pageMaps struct {
workers *para.Workers
pmaps []*pageMap
}
// deleteSection deletes the entire section from s.
func (m *pageMaps) deleteSection(s string) {
m.withMaps(func(pm *pageMap) error {
pm.deleteSectionByPath(s)
return nil
})
}
func (m *pageMaps) AssemblePages() error {
return m.withMaps(func(pm *pageMap) error {
if err := pm.CreateMissingNodes(); err != nil {
return err
}
if err := pm.assemblePages(); err != nil {
return err
}
if err := pm.createMissingTaxonomyNodes(); err != nil {
return err
}
// Handle any new sections created in the step above.
if err := pm.assembleSections(); err != nil {
return err
}
if pm.s.home == nil {
// Home is disabled, everything is.
pm.bundleTrees.DeletePrefix("")
return nil
}
if err := pm.assembleTaxonomies(); err != nil {
return err
}
if err := pm.createSiteTaxonomies(); err != nil {
return err
}
sw := §ionWalker{m: pm.contentMap}
a := sw.applyAggregates()
_, mainSectionsSet := pm.s.s.Info.Params()["mainsections"]
if !mainSectionsSet && a.mainSection != "" {
mainSections := []string{strings.TrimRight(a.mainSection, "/")}
pm.s.s.Info.Params()["mainSections"] = mainSections
pm.s.s.Info.Params()["mainsections"] = mainSections
}
pm.s.lastmod = a.datesAll.Lastmod()
if resource.IsZeroDates(pm.s.home) {
pm.s.home.m.Dates = a.datesAll
}
return nil
})
}
func (m *pageMaps) walkBundles(fn func(n *contentNode) bool) {
_ = m.withMaps(func(pm *pageMap) error {
pm.bundleTrees.Walk(func(s string, n *contentNode) bool {
return fn(n)
})
return nil
})
}
func (m *pageMaps) walkBranchesPrefix(prefix string, fn func(s string, n *contentNode) bool) {
_ = m.withMaps(func(pm *pageMap) error {
pm.branchTrees.WalkPrefix(prefix, func(s string, n *contentNode) bool {
return fn(s, n)
})
return nil
})
}
func (m *pageMaps) withMaps(fn func(pm *pageMap) error) error {
g, _ := m.workers.Start(context.Background())
for _, pm := range m.pmaps {
pm := pm
g.Run(func() error {
return fn(pm)
})
}
return g.Wait()
}
type pagesMapBucket struct {
// Cascading front matter.
cascade map[page.PageMatcher]maps.Params
owner *pageState // The branch node
*pagesMapBucketPages
}
type pagesMapBucketPages struct {
pagesInit sync.Once
pages page.Pages
pagesAndSectionsInit sync.Once
pagesAndSections page.Pages
sectionsInit sync.Once
sections page.Pages
}
func (b *pagesMapBucket) getPages() page.Pages {
b.pagesInit.Do(func() {
b.pages = b.owner.treeRef.getPages()
page.SortByDefault(b.pages)
})
return b.pages
}
func (b *pagesMapBucket) getPagesRecursive() page.Pages {
pages := b.owner.treeRef.getPagesRecursive()
page.SortByDefault(pages)
return pages
}
func (b *pagesMapBucket) getPagesAndSections() page.Pages {
b.pagesAndSectionsInit.Do(func() {
b.pagesAndSections = b.owner.treeRef.getPagesAndSections()
})
return b.pagesAndSections
}
func (b *pagesMapBucket) getSections() page.Pages {
b.sectionsInit.Do(func() {
if b.owner.treeRef == nil {
return
}
b.sections = b.owner.treeRef.getSections()
})
return b.sections
}
func (b *pagesMapBucket) getTaxonomies() page.Pages {
b.sectionsInit.Do(func() {
var pas page.Pages
ref := b.owner.treeRef
ref.m.collectTaxonomies(ref.key, func(c *contentNode) {
pas = append(pas, c.p)
})
page.SortByDefault(pas)
b.sections = pas
})
return b.sections
}
func (b *pagesMapBucket) getTaxonomyEntries() page.Pages {
var pas page.Pages
ref := b.owner.treeRef
viewInfo := ref.n.viewInfo
prefix := strings.ToLower("/" + viewInfo.name.plural + "/" + viewInfo.termKey + "/")
ref.m.taxonomyEntries.WalkPrefix(prefix, func(s string, v any) bool {
n := v.(*contentNode)
pas = append(pas, n.viewInfo.ref.p)
return false
})
page.SortByDefault(pas)
return pas
}
type sectionAggregate struct {
datesAll resource.Dates
datesSection resource.Dates
pageCount int
mainSection string
mainSectionPageCount int
}
type sectionAggregateHandler struct {
sectionAggregate
sectionPageCount int
// Section
b *contentNode
s string
}
func (h *sectionAggregateHandler) String() string {
return fmt.Sprintf("%s/%s - %d - %s", h.sectionAggregate.datesAll, h.sectionAggregate.datesSection, h.sectionPageCount, h.s)
}
func (h *sectionAggregateHandler) isRootSection() bool {
return h.s != "/" && strings.Count(h.s, "/") == 2
}
func (h *sectionAggregateHandler) handleNested(v sectionWalkHandler) error {
nested := v.(*sectionAggregateHandler)
h.sectionPageCount += nested.pageCount
h.pageCount += h.sectionPageCount
h.datesAll.UpdateDateAndLastmodIfAfter(nested.datesAll)
h.datesSection.UpdateDateAndLastmodIfAfter(nested.datesAll)
return nil
}
func (h *sectionAggregateHandler) handlePage(s string, n *contentNode) error {
h.sectionPageCount++
var d resource.Dated
if n.p != nil {
d = n.p
} else if n.viewInfo != nil && n.viewInfo.ref != nil {
d = n.viewInfo.ref.p
} else {
return nil
}
h.datesAll.UpdateDateAndLastmodIfAfter(d)
h.datesSection.UpdateDateAndLastmodIfAfter(d)
return nil
}
func (h *sectionAggregateHandler) handleSectionPost() error {
if h.sectionPageCount > h.mainSectionPageCount && h.isRootSection() {
h.mainSectionPageCount = h.sectionPageCount
h.mainSection = strings.TrimPrefix(h.s, "/")
}
if resource.IsZeroDates(h.b.p) {
h.b.p.m.Dates = h.datesSection
}
h.datesSection = resource.Dates{}
return nil
}
func (h *sectionAggregateHandler) handleSectionPre(s string, b *contentNode) error {
h.s = s
h.b = b
h.sectionPageCount = 0
h.datesAll.UpdateDateAndLastmodIfAfter(b.p)
return nil
}
type sectionWalkHandler interface {
handleNested(v sectionWalkHandler) error
handlePage(s string, b *contentNode) error
handleSectionPost() error
handleSectionPre(s string, b *contentNode) error
}
type sectionWalker struct {
err error
m *contentMap
}
func (w *sectionWalker) applyAggregates() *sectionAggregateHandler {
return w.walkLevel("/", func() sectionWalkHandler {
return §ionAggregateHandler{}
}).(*sectionAggregateHandler)
}
func (w *sectionWalker) walkLevel(prefix string, createVisitor func() sectionWalkHandler) sectionWalkHandler {
level := strings.Count(prefix, "/")
visitor := createVisitor()
w.m.taxonomies.WalkBelow(prefix, func(s string, v any) bool {
currentLevel := strings.Count(s, "/")
if currentLevel > level+1 {
return false
}
n := v.(*contentNode)
if w.err = visitor.handleSectionPre(s, n); w.err != nil {
return true
}
if currentLevel == 2 {
nested := w.walkLevel(s, createVisitor)
if w.err = visitor.handleNested(nested); w.err != nil {
return true
}
} else {
w.m.taxonomyEntries.WalkPrefix(s, func(ss string, v any) bool {
n := v.(*contentNode)
w.err = visitor.handlePage(ss, n)
return w.err != nil
})
}
w.err = visitor.handleSectionPost()
return w.err != nil
})
w.m.sections.WalkBelow(prefix, func(s string, v any) bool {
currentLevel := strings.Count(s, "/")
if currentLevel > level+1 {
return false
}
n := v.(*contentNode)
if w.err = visitor.handleSectionPre(s, n); w.err != nil {
return true
}
w.m.pages.WalkPrefix(s+cmBranchSeparator, func(s string, v any) bool {
w.err = visitor.handlePage(s, v.(*contentNode))
return w.err != nil
})
if w.err != nil {
return true
}
nested := w.walkLevel(s, createVisitor)
if w.err = visitor.handleNested(nested); w.err != nil {
return true
}
w.err = visitor.handleSectionPost()
return w.err != nil
})
return visitor
}
type viewName struct {
singular string // e.g. "category"
plural string // e.g. "categories"
}
func (v viewName) IsZero() bool {
return v.singular == ""
}
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