summaryrefslogtreecommitdiffstats
path: root/store/sql_post_store.go
blob: 56c174e4c23369e64fe111359ea90ea0ff08784a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
// Copyright (c) 2015 Spinpunch, Inc. All Rights Reserved.
// See License.txt for license information.

package store

import (
	"fmt"
	"github.com/mattermost/platform/model"
	"github.com/mattermost/platform/utils"
	"strconv"
	"strings"
)

type SqlPostStore struct {
	*SqlStore
}

func NewSqlPostStore(sqlStore *SqlStore) PostStore {
	s := &SqlPostStore{sqlStore}

	for _, db := range sqlStore.GetAllConns() {
		table := db.AddTableWithName(model.Post{}, "Posts").SetKeys(false, "Id")
		table.ColMap("Id").SetMaxSize(26)
		table.ColMap("UserId").SetMaxSize(26)
		table.ColMap("ChannelId").SetMaxSize(26)
		table.ColMap("RootId").SetMaxSize(26)
		table.ColMap("ParentId").SetMaxSize(26)
		table.ColMap("Message").SetMaxSize(4000)
		table.ColMap("Type").SetMaxSize(26)
		table.ColMap("Hashtags").SetMaxSize(1000)
		table.ColMap("Props").SetMaxSize(4000)
		table.ColMap("Filenames").SetMaxSize(4000)
	}

	return s
}

func (s SqlPostStore) UpgradeSchemaIfNeeded() {

	// These execs are for upgrading currently created databases to full utf8mb4 compliance
	// Will be removed as seen fit for upgrading 
	s.GetMaster().Exec("ALTER TABLE Posts charset=utf8mb4")
	s.GetMaster().Exec("ALTER TABLE Posts MODIFY COLUMN Message varchar(4000) CHARACTER SET utf8mb4")
}

func (s SqlPostStore) CreateIndexesIfNotExists() {
	s.CreateIndexIfNotExists("idx_posts_update_at", "Posts", "UpdateAt")
	s.CreateIndexIfNotExists("idx_posts_create_at", "Posts", "CreateAt")
	s.CreateIndexIfNotExists("idx_posts_channel_id", "Posts", "ChannelId")
	s.CreateIndexIfNotExists("idx_posts_root_id", "Posts", "RootId")

	s.CreateFullTextIndexIfNotExists("idx_posts_message_txt", "Posts", "Message")
	s.CreateFullTextIndexIfNotExists("idx_posts_hashtags_txt", "Posts", "Hashtags")
}

func (s SqlPostStore) Save(post *model.Post) StoreChannel {
	storeChannel := make(StoreChannel)

	go func() {
		result := StoreResult{}

		if len(post.Id) > 0 {
			result.Err = model.NewAppError("SqlPostStore.Save",
				"You cannot update an existing Post", "id="+post.Id)
			storeChannel <- result
			close(storeChannel)
			return
		}

		post.PreSave()
		if result.Err = post.IsValid(); result.Err != nil {
			storeChannel <- result
			close(storeChannel)
			return
		}

		if err := s.GetMaster().Insert(post); err != nil {
			result.Err = model.NewAppError("SqlPostStore.Save", "We couldn't save the Post", "id="+post.Id+", "+err.Error())
		} else {
			time := model.GetMillis()

			if post.Type != model.POST_JOIN_LEAVE {
				s.GetMaster().Exec("UPDATE Channels SET LastPostAt = ?, TotalMsgCount = TotalMsgCount + 1 WHERE Id = ?", time, post.ChannelId)
			} else {
				// don't update TotalMsgCount for unimportant messages so that the channel isn't marked as unread
				s.GetMaster().Exec("UPDATE Channels SET LastPostAt = ? WHERE Id = ?", time, post.ChannelId)
			}

			if len(post.RootId) > 0 {
				s.GetMaster().Exec("UPDATE Posts SET UpdateAt = ? WHERE Id = ?", time, post.RootId)
			}

			result.Data = post
		}

		storeChannel <- result
		close(storeChannel)
	}()

	return storeChannel
}

func (s SqlPostStore) Update(oldPost *model.Post, newMessage string, newHashtags string) StoreChannel {
	storeChannel := make(StoreChannel)

	go func() {
		result := StoreResult{}

		editPost := *oldPost
		editPost.Message = newMessage
		editPost.UpdateAt = model.GetMillis()
		editPost.Hashtags = newHashtags

		oldPost.DeleteAt = editPost.UpdateAt
		oldPost.UpdateAt = editPost.UpdateAt
		oldPost.OriginalId = oldPost.Id
		oldPost.Id = model.NewId()

		if result.Err = editPost.IsValid(); result.Err != nil {
			storeChannel <- result
			close(storeChannel)
			return
		}

		if _, err := s.GetMaster().Update(&editPost); err != nil {
			result.Err = model.NewAppError("SqlPostStore.Update", "We couldn't update the Post", "id="+editPost.Id+", "+err.Error())
		} else {
			time := model.GetMillis()
			s.GetMaster().Exec("UPDATE Channels SET LastPostAt = ?  WHERE Id = ?", time, editPost.ChannelId)

			if len(editPost.RootId) > 0 {
				s.GetMaster().Exec("UPDATE Posts SET UpdateAt = ? WHERE Id = ?", time, editPost.RootId)
			}

			// mark the old post as deleted
			s.GetMaster().Insert(oldPost)

			result.Data = &editPost
		}

		storeChannel <- result
		close(storeChannel)
	}()

	return storeChannel
}

func (s SqlPostStore) Get(id string) StoreChannel {
	storeChannel := make(StoreChannel)

	go func() {
		result := StoreResult{}
		pl := &model.PostList{}

		var post model.Post
		err := s.GetReplica().SelectOne(&post, "SELECT * FROM Posts WHERE Id = :Id AND DeleteAt = 0", map[string]interface{}{"Id": id})
		if err != nil {
			result.Err = model.NewAppError("SqlPostStore.GetPost", "We couldn't get the post", "id="+id+err.Error())
		}

		if post.ImgCount > 0 {
			post.Filenames = []string{}
			for i := 0; int64(i) < post.ImgCount; i++ {
				fileUrl := "/api/v1/files/get_image/" + post.ChannelId + "/" + post.Id + "/" + strconv.Itoa(i+1) + ".png"
				post.Filenames = append(post.Filenames, fileUrl)
			}
		}

		pl.AddPost(&post)
		pl.AddOrder(id)

		rootId := post.RootId

		if rootId == "" {
			rootId = post.Id
		}

		var posts []*model.Post
		_, err = s.GetReplica().Select(&posts, "SELECT * FROM Posts WHERE (Id = :Id OR RootId = :RootId) AND DeleteAt = 0", map[string]interface{}{"Id": rootId, "RootId": rootId})
		if err != nil {
			result.Err = model.NewAppError("SqlPostStore.GetPost", "We couldn't get the post", "root_id="+rootId+err.Error())
		} else {
			for _, p := range posts {
				pl.AddPost(p)
			}
		}

		result.Data = pl

		storeChannel <- result
		close(storeChannel)
	}()

	return storeChannel
}

type etagPosts struct {
	Id       string
	UpdateAt int64
}

func (s SqlPostStore) GetEtag(channelId string) StoreChannel {
	storeChannel := make(StoreChannel)

	go func() {
		result := StoreResult{}

		var et etagPosts
		err := s.GetReplica().SelectOne(&et, "SELECT Id, UpdateAt FROM Posts WHERE ChannelId = :ChannelId ORDER BY UpdateAt DESC LIMIT 1", map[string]interface{}{"ChannelId": channelId})
		if err != nil {
			result.Data = fmt.Sprintf("%v.0.%v", model.ETAG_ROOT_VERSION, model.GetMillis())
		} else {
			result.Data = fmt.Sprintf("%v.%v.%v", model.ETAG_ROOT_VERSION, et.Id, et.UpdateAt)
		}

		storeChannel <- result
		close(storeChannel)
	}()

	return storeChannel
}

func (s SqlPostStore) Delete(postId string, time int64) StoreChannel {
	storeChannel := make(StoreChannel)

	go func() {
		result := StoreResult{}

		_, err := s.GetMaster().Exec("Update Posts SET DeleteAt = :DeleteAt, UpdateAt = :UpdateAt WHERE Id = :Id OR ParentId = :ParentId OR RootId = :RootId", map[string]interface{}{"DeleteAt": time, "UpdateAt": time, "Id": postId, "ParentId": postId, "RootId": postId})
		if err != nil {
			result.Err = model.NewAppError("SqlPostStore.Delete", "We couldn't delete the post", "id="+postId+", err="+err.Error())
		}

		storeChannel <- result
		close(storeChannel)
	}()

	return storeChannel
}

func (s SqlPostStore) GetPosts(channelId string, offset int, limit int) StoreChannel {
	storeChannel := make(StoreChannel)

	go func() {
		result := StoreResult{}

		if limit > 1000 {
			result.Err = model.NewAppError("SqlPostStore.GetLinearPosts", "Limit exceeded for paging", "channelId="+channelId)
			storeChannel <- result
			close(storeChannel)
			return
		}

		rpc := s.getRootPosts(channelId, offset, limit)
		cpc := s.getParentsPosts(channelId, offset, limit)

		if rpr := <-rpc; rpr.Err != nil {
			result.Err = rpr.Err
		} else if cpr := <-cpc; cpr.Err != nil {
			result.Err = cpr.Err
		} else {
			posts := rpr.Data.([]*model.Post)
			parents := cpr.Data.([]*model.Post)

			list := &model.PostList{Order: make([]string, 0, len(posts))}

			for _, p := range posts {
				if p.ImgCount > 0 {
					p.Filenames = []string{}
					for i := 0; int64(i) < p.ImgCount; i++ {
						fileUrl := "/api/v1/files/get_image/" + p.ChannelId + "/" + p.Id + "/" + strconv.Itoa(i+1) + ".png"
						p.Filenames = append(p.Filenames, fileUrl)
					}
				}
				list.AddPost(p)
				list.AddOrder(p.Id)
			}

			for _, p := range parents {
				if p.ImgCount > 0 {
					p.Filenames = []string{}
					for i := 0; int64(i) < p.ImgCount; i++ {
						fileUrl := "/api/v1/files/get_image/" + p.ChannelId + "/" + p.Id + "/" + strconv.Itoa(i+1) + ".png"
						p.Filenames = append(p.Filenames, fileUrl)
					}
				}
				list.AddPost(p)
			}

			list.MakeNonNil()

			result.Data = list
		}

		storeChannel <- result
		close(storeChannel)
	}()

	return storeChannel
}

func (s SqlPostStore) getRootPosts(channelId string, offset int, limit int) StoreChannel {
	storeChannel := make(StoreChannel)

	go func() {
		result := StoreResult{}

		var posts []*model.Post
		_, err := s.GetReplica().Select(&posts, "SELECT * FROM Posts WHERE ChannelId = :ChannelId AND DeleteAt = 0 ORDER BY CreateAt DESC LIMIT :Limit OFFSET :Offset", map[string]interface{}{"ChannelId": channelId, "Offset": offset, "Limit": limit})
		if err != nil {
			result.Err = model.NewAppError("SqlPostStore.GetLinearPosts", "We couldn't get the posts for the channel", "channelId="+channelId+err.Error())
		} else {
			result.Data = posts
		}

		storeChannel <- result
		close(storeChannel)
	}()

	return storeChannel
}

func (s SqlPostStore) getParentsPosts(channelId string, offset int, limit int) StoreChannel {
	storeChannel := make(StoreChannel)

	go func() {
		result := StoreResult{}

		var posts []*model.Post
		_, err := s.GetReplica().Select(&posts,
			`SELECT 
			    q2.*
			FROM
			    Posts q2
			        INNER JOIN
			    (SELECT DISTINCT
			        q3.RootId
			    FROM
			        (SELECT 
			        RootId
			    FROM
			        Posts
			    WHERE
			        ChannelId = :ChannelId1
			            AND DeleteAt = 0
			    ORDER BY CreateAt DESC
			    LIMIT :Limit OFFSET :Offset) q3) q1 ON q1.RootId = q2.RootId
			WHERE
			    ChannelId = :ChannelId2
			        AND DeleteAt = 0
			ORDER BY CreateAt`,
			map[string]interface{}{"ChannelId1": channelId, "Offset": offset, "Limit": limit, "ChannelId2": channelId})
		if err != nil {
			result.Err = model.NewAppError("SqlPostStore.GetLinearPosts", "We couldn't get the parent post for the channel", "channelId="+channelId+err.Error())
		} else {
			result.Data = posts
		}

		storeChannel <- result
		close(storeChannel)
	}()

	return storeChannel
}

func (s SqlPostStore) Search(teamId string, userId string, terms string, isHashtagSearch bool) StoreChannel {
	storeChannel := make(StoreChannel)

	go func() {
		result := StoreResult{}
		termMap := map[string]bool{}

		searchType := "Message"
		if isHashtagSearch {
			searchType = "Hashtags"
			for _, term := range strings.Split(terms, " ") {
				termMap[term] = true
			}
		}

		// @ has a speical meaning in INNODB FULLTEXT indexes and
		// is reserved for calc'ing distances so you
		// cannot escape it so we replace it.
		terms = strings.Replace(terms, "@", " ", -1)

		var posts []*model.Post

		if utils.Cfg.SqlSettings.DriverName == "postgres" {
			searchQuery := fmt.Sprintf(`SELECT
				    *
				FROM
				    Posts
				WHERE
				    DeleteAt = 0
				    AND ChannelId IN (SELECT
				            Id
				        FROM
				            Channels,
				            ChannelMembers
				        WHERE
				            Id = ChannelId AND TeamId = $1
				                AND UserId = $2
				                AND DeleteAt = 0)
				    AND %s @@  plainto_tsquery($3)
				    ORDER BY CreateAt DESC
				LIMIT 100`, searchType)

			terms = strings.Join(strings.Fields(terms), " | ")

			_, err := s.GetReplica().Select(&posts, searchQuery, teamId, userId, terms)
			if err != nil {
				result.Err = model.NewAppError("SqlPostStore.Search", "We encounted an error while searching for posts", "teamId="+teamId+", err="+err.Error())

			}
		} else if utils.Cfg.SqlSettings.DriverName == "mysql" {
			searchQuery := fmt.Sprintf(`SELECT
				    *
				FROM
				    Posts
				WHERE
				    DeleteAt = 0
				    AND ChannelId IN (SELECT
				            Id
				        FROM
				            Channels,
				            ChannelMembers
				        WHERE
				            Id = ChannelId AND TeamId = ?
				                AND UserId = ?
				                AND DeleteAt = 0)
				    AND MATCH (%s) AGAINST (? IN BOOLEAN MODE)
				    ORDER BY CreateAt DESC
				LIMIT 100`, searchType)

			_, err := s.GetReplica().Select(&posts, searchQuery, teamId, userId, terms)
			if err != nil {
				result.Err = model.NewAppError("SqlPostStore.Search", "We encounted an error while searching for posts", "teamId="+teamId+", err="+err.Error())

			}
		}

		list := &model.PostList{Order: make([]string, 0, len(posts))}

		for _, p := range posts {
			if searchType == "Hashtags" {
				exactMatch := false
				for _, tag := range strings.Split(p.Hashtags, " ") {
					if termMap[tag] {
						exactMatch = true
					}
				}
				if !exactMatch {
					continue
				}
			}
			list.AddPost(p)
			list.AddOrder(p.Id)
		}

		list.MakeNonNil()

		result.Data = list

		storeChannel <- result
		close(storeChannel)
	}()

	return storeChannel
}