eb85b2e090
* Add "Browse" tab to the forums to view them all. * Text search * Show all, official, community, or "My List" forums. * Add a Follow/Unfollow button into the header bar of forums to add it to "My List" * On the Categories page, a special "My List" category appears at the top if the user follows categories, with their follows in alphabetical order. * On the Categories & Browse pages: forums you follow will have a green bookmark icon by their name. Permissions: * The forum owner is able to Delete comments by others, but not Edit. Notes: * Currently a max limit of 100 follow forums (no pagination yet).
122 lines
2.9 KiB
Go
122 lines
2.9 KiB
Go
package models
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import (
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"strings"
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"time"
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"code.nonshy.com/nonshy/website/pkg/log"
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"gorm.io/gorm"
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)
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// ForumMembership table.
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type ForumMembership struct {
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ID uint64 `gorm:"primaryKey"`
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UserID uint64 `gorm:"index"`
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User User `gorm:"foreignKey:user_id"`
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ForumID uint64 `gorm:"index"`
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Forum Forum `gorm:"foreignKey:forum_id"`
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Approved bool `gorm:"index"`
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IsModerator bool `gorm:"index"`
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CreatedAt time.Time
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UpdatedAt time.Time
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}
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// Preload related tables for the forum (classmethod).
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func (f *ForumMembership) Preload() *gorm.DB {
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return DB.Preload("User").Preload("Forum")
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}
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// CreateForumMembership subscribes the user to a forum.
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func CreateForumMembership(user *User, forum *Forum) (*ForumMembership, error) {
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var (
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f = &ForumMembership{
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User: *user,
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Forum: *forum,
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Approved: true,
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}
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result = DB.Create(f)
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)
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return f, result.Error
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}
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// GetForumMembership looks up a forum membership.
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func GetForumMembership(user *User, forum *Forum) (*ForumMembership, error) {
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var (
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f = &ForumMembership{}
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result = f.Preload().Where(
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"user_id = ? AND forum_id = ?",
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user.ID, forum.ID,
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).First(&f)
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)
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return f, result.Error
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}
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// IsForumSubscribed checks if the current user subscribes to this forum.
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func IsForumSubscribed(user *User, forum *Forum) bool {
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f, _ := GetForumMembership(user, forum)
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return f.UserID == user.ID
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}
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// Delete a forum membership.
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func (f *ForumMembership) Delete() error {
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return DB.Delete(f).Error
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}
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// PaginateForumMemberships paginates over a user's ForumMemberships.
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func PaginateForumMemberships(user *User, pager *Pagination) ([]*ForumMembership, error) {
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var (
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fs = []*ForumMembership{}
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query = (&ForumMembership{}).Preload()
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wheres = []string{}
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placeholders = []interface{}{}
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)
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query = query.Where(
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strings.Join(wheres, " AND "),
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placeholders...,
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).Order(pager.Sort)
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query.Model(&ForumMembership{}).Count(&pager.Total)
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result := query.Offset(pager.GetOffset()).Limit(pager.PerPage).Find(&fs)
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return fs, result.Error
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}
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// ForumMembershipMap maps table IDs to Likes metadata.
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type ForumMembershipMap map[uint64]bool
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// Get like stats from the map.
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func (fm ForumMembershipMap) Get(id uint64) bool {
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return fm[id]
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}
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// MapForumMemberships looks up a user's memberships in bulk.
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func MapForumMemberships(user *User, forums []*Forum) ForumMembershipMap {
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var (
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result = ForumMembershipMap{}
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forumIDs = []uint64{}
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)
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// Initialize the result set.
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for _, forum := range forums {
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result[forum.ID] = false
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forumIDs = append(forumIDs, forum.ID)
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}
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// Map the forum IDs the user subscribes to.
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var followIDs = []uint64{}
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if res := DB.Model(&ForumMembership{}).Select(
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"forum_id",
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).Where(
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"user_id = ? AND forum_id IN ?",
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user.ID, forumIDs,
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).Scan(&followIDs); res.Error != nil {
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log.Error("MapForumMemberships: %s", res.Error)
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}
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for _, forumID := range followIDs {
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result[forumID] = true
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}
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return result
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}
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