45 lines
7.4 KiB
Plaintext
45 lines
7.4 KiB
Plaintext
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1‡ªjÜ ã óš • S r SSKJr SSKJr SSKJrJrJrJ r SSK
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J r J r J
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SSKJrJrJr SSKJrJrJr SSKJr " S S
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\\\5 rg ) uN å¦ç”Ÿè¡¨ï¼ˆéœ€æ±‚ 2.1），系统的主表。
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关于「年龄�的一个设计��
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--------------------------------------------------------------------------
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需求里把年龄列æˆ�了å¦ç”Ÿå—段。这里**ä¸�è�½ age å—段**，å�ªå˜ birth_date：
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* 年龄 = 按今天算出�的派生值。今天是 24 �，明年今天还是 24 就错了，
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å¿…é¡»é� 定时任务去刷，多一个必定会è„�çš„å—段。
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* 需è¦�"按年龄ç›é€‰"的场景（需求 2.6.1）用 SQL 表达å¼�算：
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``app.core.utils.age_expression()`` 把 birth_date 折�年数�与 WHERE。
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* 出��时给 birth_date 和算好的 age，�端拿�直接用。
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唯一例外：录入时对方å�ªçŸ¥é�“年龄ä¸�知é�“生日，入å�‚å…�许å�ªä¼ age，
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service 会用 ``guess_birth_date()`` 折算一个å� ä½�ç”Ÿæ—¥å¹¶æ ‡è®° ``birth_date_estimated=True``。
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é )Ú annotations)Údate)ÚDateÚ
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ForeignKeyÚStringÚText)ÚMappedÚ
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mapped_columnÚ relationship)ÚBaseÚSoftDeleteMixinÚTimestampMixin)Ú GENDER_TEXTÚSTUDENT_STATUS_TEXTÚ
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StudentStatus)Úcalc_agec óž • \ rS rSr% SrSS0r\" SSS9rS\S' \" \ " S 5 SS
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SS9rS\S' \" SS
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SS 9rS\S ' \" \ " S 5 S S9rS \S!' \" \ " S"5 S#S9rS \S$' \" \ " S 5 S%S9rS \S&' \" \ " S'5 S(S9rS \S)' \" \
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S*S9rS\S+' \" \
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S,S9rS\S-' \" \ " S'5 S.S9rS \S/' \" \ " S 5 S0S9rS \S1' \" \" S25 SS3S49rS5\S6' \" \" S75 SS8S49rS5\S9' \" \" \ R: 5 S
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SS:S9r S\S;' \" \ S<S9r S \S=' \!" S>S?\/S@9r"SA\SB' \!" S?SC9r#SD\SE' \!" SSFSGSHSI9r$SJ\SK' \!" SS
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S?SL9r%SM\SN' \&SZSO j5 r'\&S[SP j5 r(\&S\SQ j5 r)\&S[SR j5 r*\&S[SS j5 r+\&S[ST j5 r,\&S]SU j5 r-\&S^SV j5 r.\&S]SW j5 r/SXr0gY)_ÚStudenté ÚstudentÚcommentu å¦ç”ŸåŸºæœ¬ä¿¡æ�¯è¡¨T)Ú primary_keyÚ
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autoincrementz Mapped[int]Úidé Fu' å¦å�·ï¼ˆæŒ‰è§„则生æˆ�，é�žè‡ªå¢žï¼‰)ÚuniqueÚnullableÚindexr z Mapped[str]Ústu_nou 姓å��)r r r Únameé u 性别 1=ç”· 2=女)Údefaultr r r Úgenderu6 出生日期（年龄由æ¤å®žæ—¶è®¡ç®—，ä¸�è�½åº“）)r zMapped[date | None]Ú
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birth_dater u6 生日是å�¦ä¸ºæŒ‰å¹´é¾„推算的å� ä½�值 0=å�¦ 1=是)r" r r Úbirth_date_estimatedé< u ç±�è´¯zMapped[str | None]Ú native_placeéP u æ¯•ä¸šé™¢æ ¡Úgraduate_schoolu 专业Úmajoré u å¦åŽ†Ú educationu å…¥å¦æ—¶é—´Ú enroll_dateu 毕业时间Ú
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graduate_dateu è�”系电è¯�Úphoneu 身份è¯�å�·Úid_cardzclazz.idu 所属ç�级)r r zMapped[int | None]Úclass_idz
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advisor.idu 顾问编å�·Ú
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advisor_idu* 状æ€� 1=在读 2=进入就业 3=已就业Ústatusu' 备注（æˆ�绩预è¦ä¼šè‡ªåŠ¨è¿½åŠ ）ÚremarkÚstudentsÚjoined)Úback_populatesÚlazyÚ foreign_keyszMapped['Clazz']Úklass)r8 zMapped['Advisor']ÚadvisorÚselectinzScore.exam_seqzall, delete-orphan)r7 r8 Úorder_byÚcascadezMapped[list['Score']]Úscores)r7 Úuselistr8 zMapped['Employment']Ú
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employmentc ó, • [ U R 5 $ ©N)r r$ ©Úselfs Úapp\model\student.pyÚageÚ Student.ageN s € 䘟™Ó(Ð(ó c óB • [ R " U R 5 $ rC )r Úgetr# rD s rF Ú gender_textÚStudent.gender_textR s € ä�Š˜tŸ{™{Ó+Ð+rI c óD • [ R " U R S5 $ )Nu 未知)r rK r3 rD s rF Ú status_textÚStudent.status_textV s € ä"×&Ò& t§{¡{°HÓ=Ð=rI c óˆ • U R ( a0 U R R S:X a U R R $ S $ ©Nr )r: Úis_delr rD s rF Ú
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class_nameÚStudent.class_nameZ s, € à"&§*§*°·±×1BÑ1BÀaÓ1Gˆt�z‰z�‰ÐQÈTÐQrI c óˆ • U R ( a0 U R R S:X a U R R $ S $ rR )r: rS Úclass_norD s rF rW ÚStudent.class_no^ s/ € à&*§j§j°T·Z±Z×5FÑ5FÈ!Ó5Kˆt�z‰z×"Ñ"ÐUÐQUÐUrI c óˆ • U R ( a0 U R R S:X a U R R $ S $ rR )r; rS r rD s rF Ú advisor_nameÚStudent.advisor_nameb s/ € à$(§L§L°T·\±\×5HÑ5HÈAÓ5Mˆt�|‰|× Ñ ÐWÐSWÐWrI c óz • [ U R Vs/ s H oR S:X d M UPM sn5 $ s snf rR )Úlenr? rS ©rE Úss rF Ú score_countÚStudent.score_countf s+ € ä˜tŸ{š{Ó<š{˜!¯h©h¸!©m—A™{Ñ<Ó=Ð=ùÒ<s ”8«8c óþ • U R Vs/ s H8 oR S:X d M UR c M# [ UR 5 PM: nnU( a! [ [ U5 [
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U5 - S5 $ S $ s snf )Nr é )r? rS ÚscoreÚfloatÚroundÚsumr] )rE r_ Úvalids rF Ú avg_scoreÚStudent.avg_scorej s[ € à)-¯ªÓ^ª A¿¹ÀA¹
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“ È!Ï'É'“ ”�q—w‘w– ©ˆÐ^Þ49Œu”S˜“Z¤# e£*Ñ,¨aÓ0ÐC¸tÐCùò _s �A:¦ A:µA:c óž • [ U R Vs/ s H( oR S:X d M UR S:X d M& UPM* sn5 $ s snf )Nr r! )r] r? rS Úflagr^ s rF Ú
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fail_countÚStudent.fail_counto s7 € ä˜tŸ{š{ÓLš{˜!¯h©h¸!©m“AÀÇÁÈ!Á —A™{ÑLÓMÐMùÒLs ”A
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