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Feature/timestamp use2 (#7)

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* effective storage of offset

* added comments to searchmanager.ts fixed linting error in utils
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grasdk 2024-02-21 23:38:07 +01:00 committed by GitHub
parent 6009ac649f
commit e0d9bdf2b2
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2 changed files with 20 additions and 11 deletions
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23
src/backend/model/database/SearchManager.ts
View File

@ -364,7 +364,7 @@ export class SearchManager {
for (const sort of sortings) {
switch (sort.method) {
case SortByTypes.Date:
query.addOrderBy('media.metadata.creationDate', sort.ascending ? 'ASC' : 'DESC');
query.addOrderBy('media.metadata.creationDate', sort.ascending ? 'ASC' : 'DESC'); //If media.metadata.creationDateOffset is defined, it is an offset of minutes (+/-). If taken into account, it will alter the sort order. Probably should not be done.
break;
case SortByTypes.Rating:
query.addOrderBy('media.metadata.rating', sort.ascending ? 'ASC' : 'DESC');
@ -563,7 +563,12 @@ export class SearchManager {
const textParam: { [key: string]: unknown } = {};
textParam['from' + queryId] = (query as FromDateSearch).value;
q.where(
`media.metadata.creationDate ${relation} :from${queryId}`,
`media.metadata.creationDate ${relation} :from${queryId}`, //TODO: If media.metadata.creationDateOffset is defined, it is an offset of minutes (+/-).
//Example: -600 means in the database UTC-10:00. The time 20:00 in the evening in the UTC-10 timezone, is actually 06:00 the next morning
//in UTC+00:00. To make search take that into account, one can subtract the offset from the creationDate to "pretend" the photo is taken
//in UTC time. Subtracting -600 minutes (because it's the -10:00 timezone), corresponds to adding 10 hours to the photo's timestamp, thus
//bringing it into the next day as if it was taken at UTC+00:00. Similarly subtracting a positive timezone from a timestamp will "pretend"
//the photo is taken earlier in time (e.g. subtracting 300 from the UTC+05:00 timezone).
textParam
);
@ -585,7 +590,7 @@ export class SearchManager {
const textParam: { [key: string]: unknown } = {};
textParam['to' + queryId] = (query as ToDateSearch).value;
q.where(
`media.metadata.creationDate ${relation} :to${queryId}`,
`media.metadata.creationDate ${relation} :to${queryId}`, //TODO: If media.metadata.creationDateOffset is defined, it is an offset of minutes (+/-). See explanation above.
textParam
);
@ -790,15 +795,15 @@ export class SearchManager {
if (tq.negate) {
q.where(
`media.metadata.creationDate >= :to${queryId}`,
`media.metadata.creationDate >= :to${queryId}`, //TODO: If media.metadata.creationDateOffset is defined, it is an offset of minutes (+/-). See explanation above.
textParam
).orWhere(`media.metadata.creationDate < :from${queryId}`,
).orWhere(`media.metadata.creationDate < :from${queryId}`, //TODO: If media.metadata.creationDateOffset is defined, it is an offset of minutes (+/-). See explanation above.
textParam);
} else {
q.where(
`media.metadata.creationDate < :to${queryId}`,
`media.metadata.creationDate < :to${queryId}`, //TODO: If media.metadata.creationDateOffset is defined, it is an offset of minutes (+/-). See explanation above.
textParam
).andWhere(`media.metadata.creationDate >= :from${queryId}`,
).andWhere(`media.metadata.creationDate >= :from${queryId}`, //TODO: If media.metadata.creationDateOffset is defined, it is an offset of minutes (+/-). See explanation above.
textParam);
}
@ -821,10 +826,12 @@ export class SearchManager {
if (Config.Database.type === DatabaseType.sqlite) {
if (tq.daysLength == 0) {
q.where(
//TODO: If media.metadata.creationDateOffset is defined, it is an offset of minutes (+/-). See explanation above.
`CAST(strftime('${duration}',media.metadataCreationDate/1000, 'unixepoch') AS INTEGER) ${relationEql} CAST(strftime('${duration}','now') AS INTEGER)`
);
} else {
q.where(
//TODO: If media.metadata.creationDateOffset is defined, it is an offset of minutes (+/-). See explanation above.
`CAST(strftime('${duration}',media.metadataCreationDate/1000, 'unixepoch') AS INTEGER) ${relationTop} CAST(strftime('${duration}','now') AS INTEGER)`
)[whereFN](`CAST(strftime('${duration}',media.metadataCreationDate/1000, 'unixepoch') AS INTEGER) ${relationBottom} CAST(strftime('${duration}','now','-:diff${queryId} day') AS INTEGER)`,
textParam);
@ -832,10 +839,12 @@ export class SearchManager {
} else {
if (tq.daysLength == 0) {
q.where(
//TODO: If media.metadata.creationDateOffset is defined, it is an offset of minutes (+/-). See explanation above.
`CAST(FROM_UNIXTIME(media.metadataCreationDate/1000, '${duration}') AS SIGNED) ${relationEql} CAST(DATE_FORMAT(CURDATE(),'${duration}') AS SIGNED)`
);
} else {
q.where(
//TODO: If media.metadata.creationDateOffset is defined, it is an offset of minutes (+/-). See explanation above.
`CAST(FROM_UNIXTIME(media.metadataCreationDate/1000, '${duration}') AS SIGNED) ${relationTop} CAST(DATE_FORMAT(CURDATE(),'${duration}') AS SIGNED)`
)[whereFN](`CAST(FROM_UNIXTIME(media.metadataCreationDate/1000, '${duration}') AS SIGNED) ${relationBottom} CAST(DATE_FORMAT((DATE_ADD(curdate(), INTERVAL -:diff${queryId} DAY)),'${duration}') AS SIGNED)`,
textParam);

6
src/common/Utils.ts
View File

@ -136,11 +136,11 @@ export class Utils {
}
static getOffsetMinutes(offsetString: string) { //Convert offset string (+HH:MM or -HH:MM) into a minute value
const regex = /^([+\-](0[0-9]|1[0-4]):[0-5][0-9])$/; //checks if offset is between -14:00 and +14:00.
const regex = /^([+-](0[0-9]|1[0-4]):[0-5][0-9])$/; //checks if offset is between -14:00 and +14:00.
//-12:00 is the lowest valid UTC-offset, but we allow down to -14 for efficiency
if (regex.test(offsetString)) {
let hhmm = offsetString.split(":");
let hours = parseInt(hhmm[0]);
const hhmm = offsetString.split(":");
const hours = parseInt(hhmm[0]);
return hours < 0 ? ((hours*60) - parseInt(hhmm[1])) : ((hours*60) + parseInt(hhmm[1]));
} else {
return undefined;